Evaluation. Abstract. plateaued at 27% suggest that cows. moving from than cows prior to. for repeated. services, thee. cows roughly 4.7:1.

Size: px
Start display at page:

Download "Evaluation. Abstract. plateaued at 27% suggest that cows. moving from than cows prior to. for repeated. services, thee. cows roughly 4.7:1."

Transcription

1 Maury Street, P.O. Box 7 Des Moines, Iowa, USA -7 tel: Evaluation of Chromium Propion ate on Reproductive Performance of Holstein Cows Abstract A field trial was conducted on a commercial 8-cow Holstein dairy inn southeastern Pennsylvania to evaluate the effect of o chromium propionate (Cr-Pro) on reproductive performance. The trial was conducted from January through October and was an all-off/all-on design where all lactating cows received 8 mg Cr/head/d deliveredd through a base corn mixx included in all lactating diets. Pregnancy rate (PR), defined as thee heat detection rate multiplied by conception rate, plateaued at 7% from January through December. Chromium (Cr) supplementation commenced in Januaryy, and by March, PR had begun increasing and continued to increase to 3. 5% by July. The st service conceptionn rate (CR) remained at 45% throughout this period, but nd, 3 rd, and 4 th service CR all increased to their greatest levels onn record for the herd. Body condition scores (BCS) for post-fresh cows were similar (P =.) from January to May, but BCS in high group cows significantly increased (P =..3) over the same period. These changes would suggest that cows moving from the post-fresh group to the high group lost less body condition during the period from January to Mayy than cows prior to that time period. Based on the improvement in BCSS and the increases in CR for repeated services, thee st results would suggest that Cr-Pro supplementation reduced negative energy balance in cows that failed to conceive at s service, thereby allowing for improved CR in repeated services. In conclusion, Cr-Pro supplementation during lactation improved reproductive performance of high-producing Holsteinn cows managed under commercial conditions. At a cost of $.5/cow/ /day, the reproductive return on investment would bee roughly 4.7:. KEYWORDS: Chromium, reproduction, dairy, cattle Introduction Feeding chromiumm to dairy cows in prepartum and postpartum diets has consistently increased milk yield of cows duringg early lactation 4,. The influencee of Cr on milk production has been attributed to its effects on energy metabolism reflectedd through decreased mobilization of NEFA from adipose tissue and increased insulin sensitivity,8. Rockwell and Allen further theorized that additional energy in Cr-supplemented diets mayy be associated with generation of more glucose fromm propionate by the liver due to increased glucagon concentrations. These improvements in glucose production andd utilization may reduce the time that cows experience negative energy balance (NEB) in early lactation. The degree of NEBB has been associated with reduced reproductive performance regardless of parity and milk yield. Field research inn Mexico 3 with both st lactation and mature Holstein dairy cows showed that Cr-Pro supplementation improved both milk production and reproductive performance. The st lactation animals reached peak milk yield days sooner and had.88 fewer services per conceptionn with Cr-Pro supplementation. Maturee cows supplemented with Cr-Pro produced 5.3 kgg more milk at peak and reached st insemination 9 days sooner than non-supplemented cows. However, there is a lack of field reproductivee data from U.S. dairy herds fed chromium. Therefore, the hypothesis was that supplementation of chromium to all lactating cows might improve reproductive performance in a commercial Holstein dairyy herd in the U.S. The objective of the trial was to evaluate the effect of supplementing chromium propionate on milk production and reproductive performance of a high-producing Holsteinn dairy herd in southeastern Pennsylvania. Materials and Methods This trial was conducted at an 8-cow commercial Holstein dairy in southeastern Pennsylvania consisting of o approximately 7 lactating and dry cows. Prior to the trial, the herd was consistently between 7-75 days in milk Page of 5 TL-3- Kemin Industries, Inc. and its group of companies 3. All rights reserved. Trademarks of Kemin Industries, Inc., U.S.A. /3

2 Maury Street, P.O. Box 7 Des Moines, Iowa, USA -7 tel: (DIM) and shipping between 85 lbs. of milk per cow per day. Veterinary services, including reproductive programs and nutritional services, were provided by the University of Pennsylvania Veterinary School Field Service. The trial rann from January through October, and the dairy had never been fed supplemental Cr prior to the initiation of thee trial. The trial was an all-off/all-on of the treatment. All lactating cows received 8 mg Cr/head/d delivered through a base corn mixx included in all lactating diets. Diets were formulated to meet NRC nutrient requirements using CPM formulationn software 5. Reproductive performance records had been collected on the herd since October, which served as baseline data against which to compare the reproductive performancee of the herd during the all-on design with a minimumm month all-on period to generate sufficient insemination data too evaluate the effectiveness period. Daily milk weights from the parlor and reproductive dataa were monitored by the herdsperson and incorporated into Dairyy Herd Improvement Association (DHIA) records. Body condition scores were determined in January prior to Cr-Proo supplementation and again in May after 5 months of Cr-Pro supplementation by two independent scorers. Wheree appropriate, milk yield, milk components, reproductive performance, and BCS data were statistically analyzed usingg MIXED procedures of SAS 7. Significance was determinedd at P <.5 and tendency at.5 < P <.. Results and Discussion Supplementation of Cr-Pro began after the January 7, test date, but there was no change in peak milk until after the 4 th month of supplementation (Table ). The delay in the effect was partially due to method by which DHIA determines peak. The DHIA definition for peak is: A cow s highest daily milk production within a lactation for a test day prior to days in milk. Peak is determined after a cow reaches days in milk and is updated until the cow reaches days inn milk. Therefore, the impact of Cr-Pro supplementation on peak milk yield records would be lessened until the test date a minimum of days after initiation of supplementation when all cows would be eligible. A one lb increasee in peak milk equates to approximately 5 extra lbs. of milk for the lactation.. Table. Test day average milk, standardized -day milk, and peak milk by lactation group by test date Peak Milk Test date Milk -Day Milk st Lactation nd Lactation 3 rd + Lactation lbs. per cow / /7/ / // 3/ // 4/ /7/ 5/ /7/ / /4/ 7/ /9/ 8/ // 9/ /8/ / // Expected production per day at days in milk A cow s highest daily milk production within a lactation for a test day prior to days in milk. Peak is determined after a cow reaches days in milk and is updated until the cow reaches days in milk The baseline reproductive status, as defined by pregnancy rate (PR), plateaued at 7% from January throughh December (Figure ). Chromium supplementationn commenced in January, and by March, PR had begunn increasing and continued to increase to 3.5% by July (Figure ). During the same period, Cr-Pro supplementationn increased the overall CR from roughly 3% to 4%, where it remainedd for the duration of the study (Figure ) ). Page of 5 TL-3- Kemin Industries, Inc. and its group of companies 3. All rights reserved. Trademarks of Kemin Industries, Inc., U.S.A. /3

3 Maury Street, P.O. Box 7 Des Moines, Iowa, USA -7 tel: Pregnancy Rate and Conception Rate, % Oct- Feb-7 Jun-7 Oct-7 Feb-8 Jun-8 Oct-8 Feb-9 Started complete synchronized AI Jun-9 Oct-9 Date, Mo-Yr Pregnancy Rate Heat Detection Rate - First Insemination Feb- Jun- Oct- Feb- Started Cr-Pro supplementation Jun- Oct- Feb- Jun- Oct Conception Rate - All Inseminations Heat Detection Rate - Repeat Inseminations Heat Detection Rate for First & Repeat Inseminations, % Figure. Pregnancy and conception rates with heat detection rates from October through October Conception rates for the st insemination CR increased from approximately 4% in the fall of 9 to a plateau of 45% inn November. Conception rates for nd, 3 rd, and 4 th inseminations varied widely over the same period. After initiation of o Cr-Pro supplementation, the st service CR remained at 45% throughout this period, but the nd, 3 rd, and 4 th inseminationn CR all increased to their greatest levels on record for the study herd. 45 First Insemination Second Insemination Third Insemination Fourth Insemina ation Conception Rate, % Started Cr-Pro supplementation Sep-9 Nov-9 Jan- Mar- May- Jul- Sep- Nov- Jan- Mar- May- Jul- Sep- Nov- Jan- Mar- May- Jul- Sep- Date, Mo-Yr Figure. Conception rates for st, nd, 3 rd and 4 th inseminations from September 9 through October The distribution of BCS for transition cows did not change (P =.) over five months of Cr-Pro supplementation. st Transition cows in the study herd were defined as calf heiferss and mature cows from - d prepartum to 4 d postpartum. The High group contained only mature cows from 4 to days in milk (DIM). The distribution of BCS for High group cows did significantly change ( P =.3) over the samee five month period of Cr-Pro supplementation. Thee Page 3 of 5 TL-3- Kemin Industries, Inc. and its group of companies 3. All rights reserved. Trademarks of Kemin Industries, Inc., U.S.A. /3

4 Maury Street, P.O. Box 7 Des Moines, Iowa, USA -7 tel: mean BCS for the High group increased from.5 to.8, suggestingg that cows moving from the post-fresh group to thee high group lost less body condition during the period from January to May than cows prior to that time period. Table. Body condition score of transition and high group cowss prior to and after five months of Cr-Pro supplementationn Transition Cows, # Cows, # High Group Body condition January May Total January May Total score Total Chi-Square X =.5 P =. X = 4.7 P =.3 Mean BCS ±SD 3.5 ± ±. 3.5 ±..5 ±.3.8 ±.3.7 ±.4 Cows in close-up and post-fresh pens. Close-up pen houses mature cows and st calf heifers from 3 wks prior to anticipated calving date to calving. Post-fresh pen housess mature cows and st calf heifers from calving to approximately 4 days in milk (DIM). Cows in high group pens. High group pens house mature cows from approximately 4 to DIM. 3 Empty cells were populated with.5 cows to ensure data continuity for statistical analysis. In the current trial, peak milk for all lactation groups increased over the duration of the study with the greatest increasee occurring for the 3 rd and greater lactation cows (+ 7 lbs.).. A one lb increase in peak milk equates to 5 more lbs. of o milk for the lactation. The change for the 3 rd and greaterr lactation cows during this trial represents roughly,575,7 lbs. more milk per lactation. Research in Mexico 3 reported a significant. lbs. increase in peak milk for mature cowss supplemented with Cr-Pro. The increase in PR associated with Cr-Pro in the trial herd was driven directly by increased CR. The effect came fromm increased CR in the nd, 3 rd, and 4 th inseminations. At the same time that the repeat insemination CR increased, the BCSS of the high group cows significantly increased while the BCS of thee transition cows remained unchanged. This changee would suggest that the cows in early lactation regained body condition sooner when supplemented with Cr-Pro, whichh would suggest that these cows came out of NEB sooner. Low CR iss often associated with issues of NEB. Therefore, if Cr-Pro supplementation improves energy utilization, the cows in thee trial herd were less severely impacted by NEB inn early lactation and were more fertile under the timed AI program. With milk prices at $8. to $. per CWT, replacement heifer value at $,4, and cull cow value at $, the increase in PR from 8 to 3.5% with thee supplementation of Cr-Pro could result in $85/cow/year or $8, for a herd of 8 cows. At a cost of $.5/head/day, the reproductive return on investment based on the current trial wouldd be roughly 4.7:. From a performancee standpoint, a customer who invests in supplementing chromium propionate to their lactating herd may feel confident in the decision. References. Butler, W. R. and R. D. Smith Interrelationships between energy balance and postpartum reproductivee function in dairy cattle. J. Dairy Sci. 7: DHIA.. DHI Glossary. Dairy Records Management System, Raleigh, NC. 3. Lavín-Garza, B., A. Garza, M. Daccarett, F. R. Valdez, C. A. Meza-Herrera, and R. Rodríguez-Martínez. 7. Page 4 of 5 TL-3- Kemin Industries, Inc. and its group of companies 3. All rights reserved. Trademarks of Kemin Industries, Inc., U.S.A. /3

5 Maury Street, P.O. Box 7 Des Moines, Iowa, USA -7 tel: Milk yield and reproductive performance in Holstein cows supplemented with Chromiumm in early lactation. J. Dairyy Sci. (Suppl. ):359. WP McNamara, J. P., and F. Valdez. 5. Adipose tissue metabolism and production responses to calciumm propionate and chromium propionate. J. Dairy Sci. 88: SA National Research Council.. Nutrient Requirements of Dairy Cattle. 7 th rev. ed. Natl. Acad. Sci., Washington, D. C.. Rockwell, R. J., and M. S. Allen.. Effects of chromium propionate fed through the periparturient period andd starch source fed postpartum on productive performance and dry matterr intake of Holstein cows. J. Dairy Sci. 94(E-suppl. ):738. AB SAS User s Guide: Statistics, Version 8 Edition.. SAS Inst., Inc., Cary, NC. 8. Sumner, J. M., F. Valdez, and J. P. McNamara. 7. Effect of chromium propionate on response to ann intravenous glucose tolerance test in growing Holstein heifers. J. Dairy Sci. : SD-3-3 Page 5 of 5 TL-3- Kemin Industries, Inc. and its group of companies 3. All rights reserved. Trademarks of Kemin Industries, Inc., U.S.A. /3

Feeding and Managing for 35,000 Pounds of Production: Diet Sorting, Dry Cow Strategies and Milk Fat Synthesis

Feeding and Managing for 35,000 Pounds of Production: Diet Sorting, Dry Cow Strategies and Milk Fat Synthesis Feeding and Managing for 35,000 Pounds of Production: Diet Sorting, Dry Cow Strategies and Milk Fat Synthesis Stephen M. Emanuele, Ph.D., PAS Senior Dairy Scientist- Technical Advisor Quality Liquid Feed,

More information

KemTRACE CHROMIUM: ESSENTIAL FOR YOUR DAIRY

KemTRACE CHROMIUM: ESSENTIAL FOR YOUR DAIRY KemTRACE CHROMIUM: ESSENTIAL FOR YOUR DAIRY SAFE EFFICACIOUS QUALITY PROFITABLE kemin.com/designedforyou KemTRACE Chromium Mode of Action Insulin stimulates glucose uptake. 1 1 2 Readily available chromium

More information

Protein Nutrition for the Transition Cow. Ryan S. Ordway, Ph.D., PAS. Global Products Manager, Balchem Corporation

Protein Nutrition for the Transition Cow. Ryan S. Ordway, Ph.D., PAS. Global Products Manager, Balchem Corporation Focusing on the Wrong Time Period? Protein Nutrition for the Transition Cow Ryan S. Ordway, Ph.D., PAS Global Products Manager, Balchem Corporation Historically, research has focused almost exclusively

More information

Managing the Transition Cow

Managing the Transition Cow Managing the Transition Cow So, how do we help this cow? 2013 DAIRY SUMMIT January 22-23-24 Dr. Phil Cardoso, DVM, PhD Dairy Research and Extension How should we feed and manage dry and transition cows

More information

Metabolic Disease and the Role of Nutrition

Metabolic Disease and the Role of Nutrition Metabolic Disease and the Role of Nutrition Robert J. Van Saun, DVM, MS, PhD Professor/Extension Veterinarian Department of Veterinary & Biomedical Sciences Pennsylvania State University Presentation Outline

More information

Effects of Encapsulated Niacin on Metabolism and Production of Periparturient Holstein Cows

Effects of Encapsulated Niacin on Metabolism and Production of Periparturient Holstein Cows Effects of Encapsulated Niacin on Metabolism and Production of Periparturient Holstein Cows S. D. Morey, B. J. Bradford, L. K. Mamedova, and D. E. Anderson Summary Niacin (nicotinic acid) can suppress

More information

Trends in Feed and Manure Phosphorus. John Peters Soil Science Department UW-Madison

Trends in Feed and Manure Phosphorus. John Peters Soil Science Department UW-Madison Trends in Feed and Manure Phosphorus John Peters Soil Science Department UW-Madison Acknowledgments Laboratory manure and TMR data provided by: Dairyland Laboratories, Inc. Rock River Laboratory, Inc.

More information

Revitalize DRy Cow RefeRenCe GuiDe

Revitalize DRy Cow RefeRenCe GuiDe Revitalize Dry Cow Reference Guide What Is Revitalize? It is a dry cow feed and mineral line formulated specifically for dry cows. It prepares the cow for the next lactation and helps reduce metabolic

More information

HEAT STRESS AND HEAT ABATEMENT TIPS FOR DAIRIES. kemin.com/chromium. Essential to you and your operation.

HEAT STRESS AND HEAT ABATEMENT TIPS FOR DAIRIES. kemin.com/chromium. Essential to you and your operation. HEAT STRESS AND HEAT ABATEMENT TIPS FOR DAIRIES kemin.com/chromium Essential to you and your operation. Why Heat Stress Matters Dairy cattle have historically been selected for traits which contribute

More information

A Comparison of MIN-AD to MgO and Limestone in Peripartum Nutrition

A Comparison of MIN-AD to MgO and Limestone in Peripartum Nutrition A Comparison of MIN-AD to MgO and Limestone in Peripartum Nutrition D-9.0-03/17 Introduction Recent research has linked subclinical hypocalcemia, which impacts 11-25% of first lactation heifers and 42-60%

More information

Homeorhesis is orchestrated changes in metabolism of body tissue required to sustain a specific physiological status.

Homeorhesis is orchestrated changes in metabolism of body tissue required to sustain a specific physiological status. Interaction Between Nutrition and Reproduction in Dairy Cows Amin Ahmadzadeh Animal and Veterinary Science Department University of Idaho Homeorhesis is orchestrated changes in metabolism of body tissue

More information

Index. Note: Page numbers of article titles are in boldface type.

Index. Note: Page numbers of article titles are in boldface type. Note: Page numbers of article titles are in boldface type. A Acetyl CoA oxidation of in postpartum period, 287 Acidifying feeds in transition dairy cow management, 374 Adipose tissues derivatives of, 307

More information

Prostaglandin F 2α. J. S. Stevenson, S. L. Pulley, and H. I. Mellieon, Jr.

Prostaglandin F 2α. J. S. Stevenson, S. L. Pulley, and H. I. Mellieon, Jr. Prostaglandin F 2α and GnRH Administration Improved Progesterone tatus, Luteal Number, and Proportion of Ovular and Anovular Dairy Cows with Corpora Lutea efore a Timed Artificial Insemination Program

More information

Transition Problems and How to Prevent Them. Bill Weiss Dept of Animal Sciences OARDC/The Ohio State Univ.

Transition Problems and How to Prevent Them. Bill Weiss Dept of Animal Sciences OARDC/The Ohio State Univ. Transition Problems and How to Prevent Them Bill Weiss Dept of Animal Sciences OARDC/The Ohio State Univ. Major Goal of Dry and Transition Cow Program 1. Increase milk yields 2. Improve reproduction 3.

More information

Setting Yourself Up for Success with Amino Acid Balancing

Setting Yourself Up for Success with Amino Acid Balancing Setting Yourself Up for Success with Amino Acid Balancing Jessica Tekippe 1 Ajinomoto Heartland Inc. Introduction - Why Protein Nutrition is Important Of the nitrogen fed to dairy cows, only 21 to 38 percent

More information

Use of Glucagon to Prevent and Treat Fatty Liver in Transition Dairy Cows

Use of Glucagon to Prevent and Treat Fatty Liver in Transition Dairy Cows Animal Industry Report AS 650 ASL R1903 2004 Use of Glucagon to Prevent and Treat Fatty Liver in Transition Cows Donald C. Beitz Jerry W. Young Arnold R. Hippen Rafael A. Nafikov Recommended Citation Beitz,

More information

The Why s, What s, and How s of Timed Artificial Insemination Programs

The Why s, What s, and How s of Timed Artificial Insemination Programs Kansas Agricultural Experiment Station Research Reports Volume 1 Issue 8 Dairy Research Article 5 January 2015 The Why s, What s, and How s of Timed Artificial Insemination Programs J. Stevenson Kansas

More information

Trace Your Fertility Losses Use culling and other records to pinpoint the main areas in which you are losing money through less than ideal fertility

Trace Your Fertility Losses Use culling and other records to pinpoint the main areas in which you are losing money through less than ideal fertility Action Plan To set appropriate targets to increase your herd profitability by up to 2p/litre. 1 2 3 4 Trace Your Fertility Losses Use culling and other records to pinpoint the main areas in which you are

More information

Dried Distillers Grains and(or) Soybean Hulls to Background Beef Calves Fed Bahiagrass Forage

Dried Distillers Grains and(or) Soybean Hulls to Background Beef Calves Fed Bahiagrass Forage Dried Distillers Grains and(or) Soybean Hulls to Background Beef Calves Fed Bahiagrass Forage Jacqueline Wahrmund Matt Hersom 1 Co-products dried distillers grains or soybean hulls can be utilized as supplements

More information

The outcome challenge

The outcome challenge Feeding and managing for improved early cyclicity Thomas R. Overton Associate Professor of Animal Science Director, PRO-DAIRY Cornell University The outcome challenge High milk production Maintain/minimize

More information

Economics and Effects of Accelerated Calf Growth Programs

Economics and Effects of Accelerated Calf Growth Programs Economics and Effects of Accelerated Calf Growth Programs A. J. Heinrichs 1 and S.L. Gelsinger Department of Animal Science, The Pennsylvania State University Introduction Feeding the dairy calf and heifer

More information

The Effects of Feeding MIN-AD and Sodium Bicarbonate on Early Lactation Performance of Dairy Cattle

The Effects of Feeding MIN-AD and Sodium Bicarbonate on Early Lactation Performance of Dairy Cattle D-3.0-06/04 The Effects of Feeding MIN-AD and Sodium Bicarbonate on Early Lactation Performance of Dairy Cattle Abstract To determine the effects of MIN-AD on early lactation performance, 56 pregnant primi-

More information

EFFECTS OF NEGATIVE ENERGY BALANCE ON REPRODUCTION IN DAIRY COWS

EFFECTS OF NEGATIVE ENERGY BALANCE ON REPRODUCTION IN DAIRY COWS EFFECTS OF NEGATIVE ENERGY BALANCE ON REPRODUCTION IN DAIRY COWS RENATE KNOP, H. CERNESCU Faculty of Veterinary Medicine Timisoara, Calea Aradului No. 119, 300645, Timisoara, Romania E-mail: renate.knop@uex-usambt.org

More information

INCLUSION OF FAT IN DIETS FOR EARLY LACTATING HOLSTEIN COWS. J. E. Shirley and M. E. Scheffel

INCLUSION OF FAT IN DIETS FOR EARLY LACTATING HOLSTEIN COWS. J. E. Shirley and M. E. Scheffel Dairy Day 1995 INCLUSION OF FAT IN DIETS FOR EARLY LACTATING HOLSTEIN COWS J. E. Shirley and M. E. Scheffel Summary Twenty-four Holstein cows were used to study the effect of dietary fat on milk production

More information

Feeding and Managing a Herd for 100 Pounds of Milk/Day - Thinking Outside the Normal Paradigm

Feeding and Managing a Herd for 100 Pounds of Milk/Day - Thinking Outside the Normal Paradigm Feeding and Managing a Herd for 1 Pounds of Milk/Day - Thinking Outside the Normal Paradigm Stephen M. Emanuele, Ph.D., PAS Senior Scientist-Technical Advisor Quality Liquid Feeds semanuele@qlf.com If

More information

DAIRY VETERINARY NEWSLETTER

DAIRY VETERINARY NEWSLETTER DAIRY VETERINARY NEWSLETTER October 2010 Reduction or Elimination of Mycoplasma Mastitis in Utah Dairy Herds Following the Statewide Surveillance Project, and a Comparison of Strategies Against Mycoplasma

More information

Effect of Oral Glycerol Drench On Transition Dairy Cattle

Effect of Oral Glycerol Drench On Transition Dairy Cattle Effect of Oral Glycerol Drench On Transition Dairy Cattle Grady Kaiser, Tarleton State University Sandy Stokes, Texas Cooperative Extension Jesse Goff, USDA/ARS Introduction The Texas dairy industry is

More information

IS A ONE TMR APPROACH RIGHT?

IS A ONE TMR APPROACH RIGHT? IS A ONE TMR APPROACH RIGHT? Michael F. Hutjens Extension Dairy Specialist University of Illinois, Urbana 232 ASL, 1207 W. Gregory Drive Urbana, IL 61801 hutjensm@illinois.edu 217-333-2928 Take Home Messages

More information

ReaShure Rumen-protected Choline: Providing an Essential Nutrient that is Deficient for Transition Dairy Cows

ReaShure Rumen-protected Choline: Providing an Essential Nutrient that is Deficient for Transition Dairy Cows ReaShure Rumen-protected Choline: Providing an Essential Nutrient that is Deficient for Transition Dairy Cows Ric R. Grummer Ruminant Technical Director Balchem Corp., New Hampton, NY Emeritus Professor

More information

Evaluation of Models to Estimate Urinary Nitrogen and Expected Milk Urea Nitrogen 1

Evaluation of Models to Estimate Urinary Nitrogen and Expected Milk Urea Nitrogen 1 J. Dairy Sci. 85:227 233 American Dairy Science Association, 2002. Evaluation of Models to Estimate Urinary Nitrogen and Expected Milk Urea Nitrogen 1 R. A. Kohn, K. F. Kalscheur, 2 and E. Russek-Cohen

More information

early lactation cow health

early lactation cow health The role of energy balance in transition and early lactation cow health Dr School of Veterinary Medicine University College Dublin Agricultural Science Association Lyons Farm October 14 th 2015 Background

More information

Export Sales of U.S. Beef Semen Increased Faster than Domestic Semen Sales

Export Sales of U.S. Beef Semen Increased Faster than Domestic Semen Sales Export Sales of U.S. Beef Semen Increased Faster than Domestic Semen Sales S.K. Johnson and K.C. Dhuyvetter Introduction The use of artificial insemination (AI) in the dairy industry grew tremendously

More information

Dry Cow Nutrition. Jersey conference Brazil

Dry Cow Nutrition. Jersey conference Brazil Dry Cow Nutrition Jersey conference Brazil Energy Dairy Cow Lactation Cycle Early Lactation Mid Lactation Late Lactation Dry Period Dry Matter Intake Milk Production Body Energy Reserves Calving BCS 3.5

More information

Evaluation of the Bioavailability of USA Lysine and MetiPEARL in Lactating Dairy Cows

Evaluation of the Bioavailability of USA Lysine and MetiPEARL in Lactating Dairy Cows Evaluation of the Bioavailability of USA Lysine and MetiPEARL in Lactating Dairy Cows USA Lysine and MetiPEARL are manufactured to have a precise specific gravity and particle size leading to rapid transit

More information

Naseri, Alimuddin. Animal Nutrition Training Manual.

Naseri, Alimuddin. Animal Nutrition Training Manual. Unit C: Meeting Nutritional Needs of Animals Lesson 6: Feeding Practices Student Learning Objectives: Instruction in this lesson should result in students achieving the following objectives: 1. Identify

More information

Advances in Trace Mineral Nutrition

Advances in Trace Mineral Nutrition Advances in Trace Mineral Nutrition Jerry W. Spears North Carolina State University Trace Minerals What is Important Provide adequate amounts of bioavailable trace minerals to meet requirements Safety

More information

RenTip133 11/25/16 Evaluating Feed Additives for Dairy Cows

RenTip133 11/25/16 Evaluating Feed Additives for Dairy Cows RenTip133 11/25/16 Evaluating Feed Additives for Dairy Cows There are many products on the market today with a lot of sales people telling very convincing stories about their product. Sense much of these

More information

MINERAL SUPPLEMENTS AND FEED ADDITIVES CAN THEY ELIMINATE FESCUE TOXICITY?

MINERAL SUPPLEMENTS AND FEED ADDITIVES CAN THEY ELIMINATE FESCUE TOXICITY? MINERAL SUPPLEMENTS AND FEED ADDITIVES CAN THEY ELIMINATE FESCUE TOXICITY? John Thomas Johns Beef Cattle Extension University of Kentucky Fescue is the predominate cool season grass in much of the United

More information

Cows Fed Availa 4 Produce More Milk, Show Better Reproductive Performance

Cows Fed Availa 4 Produce More Milk, Show Better Reproductive Performance TECHNICAL BULLETIN Cows Fed Availa 4 Produce More Milk, Show Better Reproductive Performance Key Findings Replacing a portion of standard sulfate trace minerals with Availa 4 from Zinpro Performance Minerals

More information

A Very Specific System

A Very Specific System Evaluating the advantages of block-calving Establishing the targets required to maintain a block-calving pattern Examining specific management requirements. Objective: To establish the key factors to maintain

More information

A Factorial Approach to Energy Supplementation for Grazing Beef Cattle

A Factorial Approach to Energy Supplementation for Grazing Beef Cattle A Factorial Approach to Energy Supplementation for Grazing Beef Cattle Matt Hersom 1 Extension Beef Cattle Specialist Department of Animal Sciences University of Florida Introduction Beef cattle production

More information

INTAKEANDDIGESTIBiliTY

INTAKEANDDIGESTIBiliTY EFFECTS OF LACTATION TYPE OF SUPPLEMENTS ON FORAGE INTAKEANDDIGESTIBiliTY T.T. Marston1 and K. S. Lusby2 Story In Brief Spring-calving beef cows were used in two consecutive years, (n=32, year 1; n=42,

More information

Tom s 20 Questions to Determine Where Your Herd is T.P. Tylutki PhD Dpl ACAN AMTS LLC

Tom s 20 Questions to Determine Where Your Herd is T.P. Tylutki PhD Dpl ACAN AMTS LLC Tom s 20 Questions to Determine Where Your Herd is T.P. Tylutki PhD Dpl ACAN AMTS LLC Heifers 1. What is weaning weight (at 49 days) as a percentage of birthweight? 2. For 100 heifer calves born, how many

More information

MANAGING THE DAIRY COW DURING THE DRY PERIOD

MANAGING THE DAIRY COW DURING THE DRY PERIOD Department of Animal Science MANAGING THE DAIRY COW DURING THE DRY PERIOD Dairy Cattle Production 342-450A Page 1 of 11 Background The dry period is a critical period for the health, production and reproduction

More information

Optimizing Intake in Dry and Prefresh Cows

Optimizing Intake in Dry and Prefresh Cows Optimizing Intake in Dry and Prefresh Cows Thomas R. Overton, Ph.D. Department of Animal Science Cornell University Ithaca NY 14853 o: 607.255.2878; f: 607.255.1335 email: tro2@cornell.edu Introduction

More information

Randomness Rules: Living with Variation in the Nutrient Composition of Concentrate Feeds 1

Randomness Rules: Living with Variation in the Nutrient Composition of Concentrate Feeds 1 Randomness Rules: Living with Variation in the Nutrient Composition of Concentrate Feeds 1 William P. Weiss Department of Animal Sciences Ohio Agricultural Research and Development Center The Ohio State

More information

9 Managing blockcalving

9 Managing blockcalving 9 Managing block-calving herds Objective: To establish the key factors to maintain a successful block-calving system. Challenge: Recognise the need for excellent fertility performance and management for

More information

Randomness Rules: Living with Variation in the Nutrient Composition of Concentrate Feeds

Randomness Rules: Living with Variation in the Nutrient Composition of Concentrate Feeds Randomness Rules: Living with Variation in the Nutrient Composition of Concentrate Feeds William P. Weiss 1 Department of Animal Sciences Ohio Agricultural Research and Development Center The Ohio State

More information

Feed Management to Improve Nitrogen and Phosphorus Efficiency. Charles C. Stallings Professor and Extension Dairy Scientist Virginia Tech

Feed Management to Improve Nitrogen and Phosphorus Efficiency. Charles C. Stallings Professor and Extension Dairy Scientist Virginia Tech Feed Management to Improve Nitrogen and Phosphorus Efficiency Charles C. Stallings Professor and Extension Dairy Scientist Virginia Tech The two nutrients that have the greatest potential for negative

More information

Causes and prevention of displaced abomasum (DA) in dairy cows

Causes and prevention of displaced abomasum (DA) in dairy cows Causes and prevention of displaced abomasum (DA) in dairy cows Dr. Randy Shaver Department of Dairy Science University of Wisconsin - Madison Economic losses associated with DA Treatment costs range from

More information

Top ten things to do for healthy and productive transition cows

Top ten things to do for healthy and productive transition cows Top ten things to do for healthy and productive transition cows Thomas R. Overton, Ph.D. Professor of Dairy Management Director, PRO-DAIRY Associate Director, Cornell Cooperative Extension Cornell University

More information

Transition Cow. To Ensure a More Successful Lactation, The Vital 90 TM Days Make a Difference

Transition Cow. To Ensure a More Successful Lactation, The Vital 90 TM Days Make a Difference To Ensure a More Successful Lactation, The Vital 90 TM Days Make a Difference David McClary DVM, MS Dairy Technical Consultant Elanco Animal Health Transition Cow Transition Period Has been defined as

More information

PROCEDURES: Spruce Haven Farm and Research Center, Auburn, NY.

PROCEDURES: Spruce Haven Farm and Research Center, Auburn, NY. Effects of feeding a ruminally protected lysine (AjiPro -L) from calving to the fourth week of lactation on production of high producing lactation dairy cattle. J. E. Nocek* 1, T. Takagi 2 and I. Shinzato

More information

How to Meet the MP & AA Needs of Most Cows

How to Meet the MP & AA Needs of Most Cows How to Meet the MP & AA Needs of Most Cows 2012 RP Feed Components, LLC MP, Met, & Lys Needs of Prefresh Cows What do the Models and Experts Say? MP, g/d Met, g/d Lys, g/d Nutrition Models (4) 820 1,137

More information

Recent Advances in Our Understanding of Fatty Acid Digestion and Metabolism in Lactating Dairy Cows

Recent Advances in Our Understanding of Fatty Acid Digestion and Metabolism in Lactating Dairy Cows Recent Advances in Our Understanding of Fatty Acid Digestion and Metabolism in Lactating Dairy Cows Adam Lock and Jonas de Souza Department of Animal Science, Michigan State University Email: allock@msu.edu

More information

Animal Industry Report

Animal Industry Report Animal Industry Report AS 652 ASL R2090 2006 Acute Effects of Subcutaneous Injection of and/or Oral Administration of on Blood Metabolites and Hormones of Holstein Dairy Cows Affected with Fatty Liver

More information

Optimum production or income over feed cost during the subsequent lactation occurs with 50- to 70-day dry periods.

Optimum production or income over feed cost during the subsequent lactation occurs with 50- to 70-day dry periods. Dry Cow Managements Amin Ahmadzadeh Animal and Veterinary Science Department University of Idaho The Dry Period Optimum production or income over feed cost during the subsequent lactation occurs with 50-

More information

Does Prebreeding Fat or Protein Supplementation Improve Rebreeding Performance?

Does Prebreeding Fat or Protein Supplementation Improve Rebreeding Performance? Does Prebreeding Fat or Supplementation Improve Rebreeding Performance? D.G. Landblom 1, G.P. Lardy 2, C.J. Wachenheim 3, and T. Petry 3 1 NDSU - Dickinson Research Extension Center 2 NDSU - Animal and

More information

Determining the Cost-Effectiveness of Treating Subclinical Ketosis in Dairy Cows. Honors Research Thesis

Determining the Cost-Effectiveness of Treating Subclinical Ketosis in Dairy Cows. Honors Research Thesis Brown 1 Determining the Cost-Effectiveness of Treating Subclinical Ketosis in Dairy Cows Honors Research Thesis Presented in Partial Fulfillment of the Requirements for Graduation with Honors Research

More information

Basic Requirements. Meeting the basic nutrient requirements

Basic Requirements. Meeting the basic nutrient requirements Basic Requirements It is imperative that cattle producers have an adequate understanding of the basic nutrient requirements of the cow herd to make informed and effective nutrition-related decisions. Meeting

More information

1950s 1 st calf from surgical ET Frozen semen LN 2

1950s 1 st calf from surgical ET Frozen semen LN 2 1 Fertility and Reproduction Advances 1950s 1 st calf from surgical ET Frozen semen LN 2 Progestins used to synchronize estrus 2 Fertility and Reproduction Advances 1950s 1 st calf from surgical ET Frozen

More information

Use and Added Value of AI Data for Genetic Evaluation and Dairy Cattle Improvement

Use and Added Value of AI Data for Genetic Evaluation and Dairy Cattle Improvement Use and Added Value of AI Data for Genetic Evaluation and Dairy Cattle Improvement Gerrit Kistemaker & Brian Van Doormaal Herd management Use of AI Data Future calving dates Diagnose cow fertility problems

More information

Animal Industry Report

Animal Industry Report Animal Industry Report AS 653 ASL R2200 2007 Acute Effects of Postpartal Subcutaneous Injection of and/or Oral Administration of on Blood Metabolites and Hormones and Liver Lipids and Glycogen of Holstein

More information

INJECTABLE MICRO-MINERALS (MULTIMIN ) PROVE TO BE AN EFFECTIVE AND ESSENTIAL ROUTE OF MICRO-MINERAL SUPPLEMENTATION FOR LACTATING DAIRY COWS.

INJECTABLE MICRO-MINERALS (MULTIMIN ) PROVE TO BE AN EFFECTIVE AND ESSENTIAL ROUTE OF MICRO-MINERAL SUPPLEMENTATION FOR LACTATING DAIRY COWS. INJECTABLE MICRO-MINERALS (MULTIMIN ) PROVE TO BE AN EFFECTIVE AND ESSENTIAL ROUTE OF MICRO-MINERAL SUPPLEMENTATION FOR LACTATING DAIRY COWS. Dr Neil Michael, DVM, Angela Storch, MS, Willie Smith, PhD

More information

Bioenergetic factors affecting conception rate in Holstein Friesian cows

Bioenergetic factors affecting conception rate in Holstein Friesian cows Bioenergetic factors affecting conception rate in Holstein Friesian cows J. Patton, 2*, D. Kenny 2, J.F. Mee, F.P. O Mara 2 and J.J. Murphy Teagasc, Dairy Production Research Centre, Moorepark, Fermoy,

More information

Can Genomics of Dry Matter Intake in Transition Cows Improve Health and Fertility?

Can Genomics of Dry Matter Intake in Transition Cows Improve Health and Fertility? Can Genomics of Dry Matter Intake in Transition Cows Improve Health and Fertility? W. Ron Butler Department of Animal Science Cornell University Periparturient transition period Cascade of metabolic and

More information

Dietary Strategies to Reduce Hypocalcemia

Dietary Strategies to Reduce Hypocalcemia Dietary Strategies to Reduce Tina Kohlman, Dairy & Livestock Agent UW-Extension Fond du Lac & Sheboygan Counties Presented at the Fond du Lac County Forage Council s 2014 Dairy-Forage Day Friday, December

More information

BUILDING ON MILK PROTEIN

BUILDING ON MILK PROTEIN BUILDING ON MILK PROTEIN Michael F. Hutjens TAKE HOME MESSAGES Capturing the milk protein potential in a herd can increase milk value 30 to 50 cents per cwt (one hundred pounds). Amino acid balancing using

More information

IMMUNE FUNCTION AND METABOLIC STRESS DUE TO PRECALVING ENERGY LEVEL AND POSTCALVING MASTITIS CHALLENGE IN DAIRY COWS

IMMUNE FUNCTION AND METABOLIC STRESS DUE TO PRECALVING ENERGY LEVEL AND POSTCALVING MASTITIS CHALLENGE IN DAIRY COWS IMMUNE FUNCTION AND METABOLIC STRESS DUE TO PRECALVING ENERGY LEVEL AND POSTCALVING MASTITIS CHALLENGE IN DAIRY COWS Daniel Graugnard, Massimo Bionaz, Erminio Trevisi, Manishi Mukesh, Mario Ordonez, Kasey

More information

Basic Cow Nutrition. Dr. Matt Hersom 1

Basic Cow Nutrition. Dr. Matt Hersom 1 Basic Cow Nutrition Dr. Matt Hersom 1 1 Assistant Professor, Department of Animal Sciences, Gainesville, FL Introduction The cow is our basic production unit and most important employee of the beef enterprise.

More information

Amino Acid Nutrition and Transition Cows

Amino Acid Nutrition and Transition Cows Amino Acid Nutrition and Transition Cows Chuck Schwab Schwab Consulting, LLC, Boscobel, WI Professor Emeritus, Animal Sciences University of New Hampshire Commonly accepted benefits to balancing for Lys

More information

Yeast Product Supplementation Influences Feeding Behavior and Measures of Immune Function in Transition Dairy Cows

Yeast Product Supplementation Influences Feeding Behavior and Measures of Immune Function in Transition Dairy Cows Yeast Product Supplementation Influences Feeding Behavior and Measures of Immune Function in Transition Dairy Cows K. Yuan, M. Muckey, L. Mendonça, L. Hulbert, and B. Bradford Summary Yeast supplementation

More information

The Diploma in Ruminant Nutrition

The Diploma in Ruminant Nutrition Further Information on the Modules that Make Up The Diploma in Ruminant Nutrition Taken from the Module Descriptors Ruminant Animal Production and the Feed Industry A4057 Academic Level 4 Rationale and

More information

The Effect of MIN-AD on Performance and Health in Early Lactation Dairy Cows

The Effect of MIN-AD on Performance and Health in Early Lactation Dairy Cows D-6.0-08/06 The Effect of MIN-AD on Performance and Health in Early Lactation Dairy Cows Introduction Proper nutrition during the transition period and early lactation is crucial for maximizing milk production

More information

SUPPLEMENTAL CHOLINE FOR PREVENTION AND ALLEVIATION OF FATTY LIVER IN DAIRY CATTLE

SUPPLEMENTAL CHOLINE FOR PREVENTION AND ALLEVIATION OF FATTY LIVER IN DAIRY CATTLE SUPPLEMENTAL CHOLINE FOR PREVENTION AND ALLEVIATION OF FATTY LIVER IN DAIRY CATTLE Ric R. Grummer and Reinaldo Cooke Department of Dairy Science University of Wisconsin-Madison rgrummer@wisc.edu Fatty

More information

Body Condition, Energy And Health In High-Producing Dairy Cows

Body Condition, Energy And Health In High-Producing Dairy Cows Body Condition, Energy And Health In High-Producing Dairy Cows Franklin Garry, DVM, MS Associate Professor, Food Animal Medicine and Surgery Colorado State University 1993 WESTERN LARGE HERD MANAGEMENT

More information

Control of Energy Intake Through Lactation

Control of Energy Intake Through Lactation Control of Energy Intake Through Lactation Michael S. Allen and B. J. Bradford 1 Department of Animal Science, Michigan State University, East Lansing 48824 Email: allenm@msu.edu Summary Feed intake is

More information

PERIPARTURIENT DISORDERS IN DAIRY COWS. J.S. Stevenson. Introduction

PERIPARTURIENT DISORDERS IN DAIRY COWS. J.S. Stevenson. Introduction 5 a PERIPARTURIENT DISORDERS IN DAIRY COWS J.S. Stevenson I! e Introduction The economic climate in the dairy industry requires producers to operate efficiently to remain competitive. Attention to details

More information

Large Herd Seminar. Tuesday 25 th June :1 5. Feeding the Dry Cow. Gordon Jones, D.V.M.

Large Herd Seminar. Tuesday 25 th June :1 5. Feeding the Dry Cow. Gordon Jones, D.V.M. Large Herd Seminar Tuesday 25 th June 201 3 1 4:1 5 Feeding the Dry Cow Gordon Jones, D.V.M. Dr. Gordon A. Jones currently lives in De Pere, WI. He attended Michigan State University and received his Bachelor

More information

Abnormal progesterone profiles as a sign of functional imbalance in the transition period.

Abnormal progesterone profiles as a sign of functional imbalance in the transition period. Abnormal progesterone profiles as a sign of functional imbalance in the transition period. John M. Christensen 1 & Christina Ahm Petersen 2 1 Lattec I/S, Slangerupgade 69, 3400 Hillerød, Denmark 2 Lattec

More information

SUPPLEMENTAL PROTEIN REQUIREMENT FOR BEEF COWS GRAZING STOCKPILED BERMUDAGRASS. Authors:

SUPPLEMENTAL PROTEIN REQUIREMENT FOR BEEF COWS GRAZING STOCKPILED BERMUDAGRASS. Authors: SUPPLEMENTAL PROTEIN REQUIREMENT FOR BEEF COWS GRAZING STOCKPILED BERMUDAGRASS 1999 Animal Science Research Report Authors: Story in Brief Pages 92-95 J.S. Wheeler, D.L. Lalman, C.A. Lents and L.A. Redmon

More information

TRANSITION COW NUTRITION AND MANAGEMENT. J.E. Shirley

TRANSITION COW NUTRITION AND MANAGEMENT. J.E. Shirley Dairy Day 2003 TRANSITION COW NUTRITION AND MANAGEMENT J.E. Shirley Summary Dairy cows are generally provided with a 60-day dry period. The first part of the dry period is called the far-off dry period

More information

International Dairy Nutrition Symposium 2017 The transition period and metabolic diseases in relation to fertility

International Dairy Nutrition Symposium 2017 The transition period and metabolic diseases in relation to fertility International Dairy Nutrition Symposium 2017 The transition period and metabolic diseases in relation to fertility Stephen LeBlanc Transition Health and CR at 1 st AI 5719 cows in 7 US herds Prevalence

More information

Maximize MP for a win-win.

Maximize MP for a win-win. Maximize MP for a win-win. Stay focused on the race. We ll help you avoid pit stops. During each animal s life cycle there can be many unexpected stops and starts along the way. Think of Arm & Hammer Animal

More information

FACTORS AFFECTING MANURE EXCRETION BY DAIRY COWS 1

FACTORS AFFECTING MANURE EXCRETION BY DAIRY COWS 1 FACTORS AFFECTING MANURE EXCRETION BY DAIRY COWS 1 W. P. Weiss Department of Animal Sciences Ohio Agricultural Research and Development Center The Ohio State University Manure in an inevitable byproduct

More information

Nutritional Management of Dairy Cows During the Transition Period

Nutritional Management of Dairy Cows During the Transition Period Nutritional Management of Dairy Cows During the Transition Period R. D. Shaver, Ph.D. Professor and Extension Dairy Nutritionist Department of Dairy Science College of Agricultural and Life Sciences University

More information

THE EFFECTS OF ENERGY AND PROTEIN SUPPLEMENTS ON SPRING-CALVING COWS

THE EFFECTS OF ENERGY AND PROTEIN SUPPLEMENTS ON SPRING-CALVING COWS THE EFFECTS OF ENERGY AND PROTEIN SUPPLEMENTS ON SPRING-CALVING COWS T. T. Marston!, K. S. Lusby2 and R. P. Wettemann3 Story in Brief A 2-year study used 222 cows to determine if feeding different amounts

More information

Comparison of Trace Mineral Source on Cow Trace Mineral Status, Reproduction, and Calf Weaning Weight on Two Commercial Ranches

Comparison of Trace Mineral Source on Cow Trace Mineral Status, Reproduction, and Calf Weaning Weight on Two Commercial Ranches Comparison of Trace Mineral Source on Cow Trace Mineral Status, Reproduction, and Calf Weaning Weight on Two Commercial Ranches M. Hersom 1, J. Yelich 1, M. Irsik 2 Synopsis Supplementation with organic

More information

RESEARCH UPDATE: ENERGY STRATEGIES FOR DRY COWS. Cornell University INTRODUCTION

RESEARCH UPDATE: ENERGY STRATEGIES FOR DRY COWS. Cornell University INTRODUCTION RESEARCH UPDATE: ENERGY STRATEGIES FOR DRY COWS S. Mann 1, F. A. Leal Yepes 2, T. R. Overton 2, J. J. Wakshlag 1, C. M. Ryan 2 and D.V. Nydam 2 1 College of Veterinary Medicine 2 College of Agriculture

More information

Once recorded metabolic adaptation does not allow to predict longevity in dairy cows

Once recorded metabolic adaptation does not allow to predict longevity in dairy cows Once recorded metabolic adaptation does not allow to predict longevity in dairy cows J.J. Gross 1, L. Grossen-Rösti 1, F. Schmitz-Hsu 2, R.M. Bruckmaier 1 1), Vetsuisse Faculty University of Bern, Switzerland

More information

Using feed additives to improve milk production efficiency. Dr. Irmgard Immig, Global Category Manager Ruminants Chilelácteo June, 2015

Using feed additives to improve milk production efficiency. Dr. Irmgard Immig, Global Category Manager Ruminants Chilelácteo June, 2015 Using feed additives to improve milk production efficiency Dr. Irmgard Immig, Global Category Manager Ruminants Chilelácteo June, 2015 Milk Production (kg/cow/year) Milk production increase in Holstein

More information

we will 100 pounds; peak 2011) where In Part VI (Jan Production Year 2011) we calving the first rangeland forage and supplement determine how

we will 100 pounds; peak 2011) where In Part VI (Jan Production Year 2011) we calving the first rangeland forage and supplement determine how Collegee of Agriculture & Natural Resources Northeast Extensionn Area Johnson County Office 762 W. Fetterman St. Buffalo, WY 82834 Phone: 307-684-7522 Cell Phone: 307-217-1476 Fax: 307-684-7522 (call ahead)

More information

Feed Efficiency and Its Impact on Feed Intake

Feed Efficiency and Its Impact on Feed Intake Feed Management A Key Ingredient in Livestock and Poultry Nutrient Management Feed Efficiency and Its Impact on Feed Intake Michael F. Hutjens Department of Animal Science University of Illinois, Urbana

More information

Body Condition Scoring Your Cow Herd

Body Condition Scoring Your Cow Herd Body Condition Scoring Your Cow Herd 04-Aug-06 Importance of Body Condition Scoring to Cattle Producers Body condition is an expression of the amount of body fat that an animal is carrying. It is a one

More information

Product Purpose Statement for Commercial Feed Eli Miller University of Kentucky Lexington, KY May 15, 1997

Product Purpose Statement for Commercial Feed Eli Miller University of Kentucky Lexington, KY May 15, 1997 Product Purpose Statement for Commercial Feed Eli Miller University of Kentucky Lexington, KY May 15, 1997 The AAFCO Model Feed Regulations requires the label for most livestock feeds to include a product

More information

Tools for Diagnosing Nutritional Problems in Dairy Herds

Tools for Diagnosing Nutritional Problems in Dairy Herds Tools for Diagnosing Nutritional Problems in Dairy Herds By: Donna Amaral-Phillips, Ph.D. Several diagnostic tools are available to help nutritionists, veterinarians and producers discover the cause of

More information

Winter Feeding Based on a Forage Test MARK MAULDIN FEBRUARY 2016 NW FL BEEF CONFERENCE

Winter Feeding Based on a Forage Test MARK MAULDIN FEBRUARY 2016 NW FL BEEF CONFERENCE Winter Feeding Based on a Forage Test MARK MAULDIN FEBRUARY 2016 NW FL BEEF CONFERENCE Strategic Winter Feeding Determine nutrient demands of cattle Determine nutrient content of forage Pair cattle and

More information

Use of Alaska Grown Whole Seed Canola in Dairy Cattle Diets Year 2

Use of Alaska Grown Whole Seed Canola in Dairy Cattle Diets Year 2 Use of Alaska Grown Whole Seed Canola in Dairy Cattle Diets Year 2 by: Kirsten Randall Dairy Laboratory Assistant Palmer Research Center Stephen Dofing Associate Professor of Agronomy Palmer Research Center

More information

Sow Reproduction and Seasonal Infertility. Darlington Pig Discussion Group 13 th March 2014 Richard Bull

Sow Reproduction and Seasonal Infertility. Darlington Pig Discussion Group 13 th March 2014 Richard Bull Sow Reproduction and Seasonal Infertility Darlington Pig Discussion Group 13 th March 2014 Richard Bull Richard Bull Taurus Concepts Ltd Sow Reproduction Endogenous Hormones Gland Hormone Function Hypothalamus

More information

Relationships of Negative Energy Balance with Fertility

Relationships of Negative Energy Balance with Fertility Relationships of Negative Energy Balance with Fertility W. Ronald Butler Department of Animal Science, Cornell University 203 Morrison Hall, Ithaca, NY 14853 Email: wrb2@cornell.edu 1. Take Home Message

More information