Senepol Cattle and Grass Fed Beef. Allen Williams, Ph.D., PAS Tallgrass Beef Company

Transcription

1 Senepol Cattle and Grass Fed Beef Allen Williams, Ph.D., PAS Tallgrass Beef Company

2 Tallgrass Beef Company Grass Fed No Grain Source Verified No Fed Antibiotics No Added Hormones No Animal Byproducts

3 Verifiable Protocols Selected Genetics Ultrasound Selection RFID Technology Annual Ranch Visits Producer Affidavits

4 Tallgrass Feedlots Rotational Grazing Forage Sequencing Non-Confinement

5 Product Attributes Omega 3, CLA, Vit. E Favorable Unsaturated to saturated fatty acid ratio Lower E. coli, campylobacter Environmentally Friendly USA Family Farms Healthy Animals, Healthy Environment, Healthy People

6 Frequent Product Sampling

7 Fatty Acid Profiles for Grass Fed Beef o Analysis performed by Dr. Don Beitz,, ISU o Key Fatty Acids Myristic Saturated atherogenic fatty acid that should be minimized in the diet. Stearic Saturated fatty acid, but with heart healthy properties. Promotes HDL. Linoleic Polyunsaturated Omega-6 6 fatty acid. Important for vision, skin health, and immune system function.

8 Key Fatty Acids o Linolenic Omega-3 3 fatty acid that is important in cardiovascular health. o CLA Omega-6 6 fatty acid demonstrated to have health benefits. o Total Polyunsaturated Fatty Acids (PUFA)- Includes Omega-3 3 and Omega-6 6 fatty acids. o Omega-3:Omega 3:Omega-66 Ratio Recommended ratio is 1:4 or Most Americans consume a diet of 1:20.

9 Comparison Of Grass Fed and Grain Fed Beef Overall Average Fatty Acid Myristic Stearic Linoleic Linolenic CLA Grass Fed Beef Grain Fed Beef

10 Comparison of Grass Fed and Grain Fed Beef Omega-3:Omega 3:Omega-66 Ratio PUFA Omega-3 Omega-6 O3:O6 Ratio Atherogenicity Grass Fed Beef Grain Fed Beef

11 Comparison of Grass Fed and Grain Fed Beef Effect of Season Fatty Acid GF Winter* GF Spring GF Summer Grain Fed Myristic Stearic Linoleic Linolenic CLA *

12 Comparison of Grass Fed and Grain Fed Beef Effect of Season PUFA GF Winter 7.84 GF Spring 9.83 GF Summer 8.37 Grain Fed 3.94 Omega Omega O3:O Athero

13 Fatty Acid Analysis Summary o Over all seasons, the Grass Fed Beef had more favorable fatty acid profiles compared to USDA Choice Grain Fed beef. o Omega-3:Omega 3:Omega-66 ratio was very close to recommended ratio. o CLA content significantly higher in grass fed. o Season of finish did affect fatty acid profile, but all grass fed samples were significantly better in fatty acid profiles than grain fed. o Supplementation did slightly lower favorable fatty acid profile, but was still significantly better than grain fed.

14 Breed Comparison Weaning Ultrasound Data Breed Averages Breed RES TEND REA BF REA/CWT IMF Angus Barzona Barzona/Hereford Polled Hereford Red Angus Senegus Senepol Senepol/Hereford South Poll

15 Mississippi State University Steer Project Results o Two Year project. o Fed in Calan Gate System to be able to evaluate individual steer performance. o Fed to a constant backfat end point of 0.4 inches BF. o Collected feedyard data, ultrasound carcass data, and actual carcass data, along with linear measurements.

16 Mississippi State Univ. Steer Project Ultrasound Measurements Breed REA (in 2 ) Back Fat (in.) % IMF Barzona Polled Hereford Red Angus Senepol South Poll

17 Mississippi State Steer Project Actual Carcass Data Breed HCWT (lb.) DP (%) a REA (in 2 ) MS QG YG Barzona Polled Hereford Red Angus Senepol South Poll

18 Marbling Score (MS) and Quality Grade (QG) Codes Marbling Score Code Quality Grade Code Trace 200 Standard 15 Slight 300 Select - 16 Small 400 Select 0 17 Modest 500 Select + 18 Choice - 19 Choice o 20

19 MS State Steer Project Tenderness Scores BREED WB Shear Force, kg Ultrasound Tenderness Barzona Polled Hereford Red Angus Senepol South Poll

20 Shear Force Study Summary Study Wheeler et al McKeith et al.1985 DeRouen et al Sire Breed Hereford Brahman Angus Brahman AN x BR HP x BR CH x BR Brahman WBS (kg)

21 Shear Force Study Summary Study Damon et al Wheeler et al Sire Breed Angus Hereford Shorthorn Charolais Brangus Brahman Bos Taurus Bi x Bt WBS (kg)

22 RE Shape % IMF Stress BF BIA Ultrasound Tenderness REA/CWT REA Chuteside Capabilities of BIA Automated Software

23 Bovine Ultrasound Ribeye Image

24 Bovine Ribeye Diagram Spinalis dorsi Acorn Fat Backfat Thickness Ribeye Spinous Process Intercostal Muscle Boundaries Intercostal Break Quadratus lumborum

25 Bovine Ultrasound LD Image For % Intramuscular Fat Determination

26 Backfat Layer Spinalis Hair and Hide Layer Longissimus Muscle % IMF Box (Used to calculate % IMF) Muscle Striations (Used in Tenderness Determination) 11 th Rib 12 th Rib 13 th Rib

27 Correlation Between Ultrasound Tenderness and WB Shear No Head 101 Harvest Group 1 Correlation Coefficient

28 Correlation with DNA, US, WB Shear Sire Progeny Group Number Progeny DNA US DNA WB WB US A B C D E F G

29 % IMF Relation of % IMF to USDA Quality Grade USDA QG Marbling Standard Prac.. Devoid Select Slight Choice- Small Choice+ Modest/Mod Prime Abundant