Cobb500 TM. breeder. Breeder Management Supplement. Slow Feather Female. cobb-vantress.com

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1 Cobb500 TM Breeder Manaement Supplement Slow Feather Female breeder cobb-vantress.com

2 Cobb 500 SF Breeder Manaement Supplement Introduction This Cobb Breeder Manaement Supplement is to be used in conjunction with the Cobb Breeder Manaement Guide to assist you in buildin your manaement proram. Manaement must not only meet the basic needs of the stock but also be fine tuned to attain the full potential of the breed. Our recommendations in this booklet are based on current scientific knowlede and practical experience, and reflect the enetic potential of the Cobb hen based on Total E and Hatch Percent records taken from the top of Cobb flocks worldwide. This booklet should be used as a uide only, and adapted locally accordin to your own experience when projectin performance from all flocks in a particular operation. You should be aware of any local leislation which may influence the manaement practices that you should choose to adopt. Please contact your Cobb Technical Representative for further assistance. Revised 201 Breeder Performance Ae at depletion (weeks) (days) Ae at 5 production (weeks) (days) Total es/hen housed Hatchin es/hen housed (50 minimum) Peak hatchability () Cumulative hatchability () Broiler chicks/hen housed Livability from 24 weeks () DARK OPEN OUT SIDED Female bodyweiht (24 weeks) (k).01.1 (lb) Female bodyweiht (65 weeks) (k) (lb)

3 Cobb 500 SF Breeder Manaement Supplement Female Dark-out Rearin Ae Bodyweiht Body Weiht days weeks rams pounds Gain Please refer to the Cobb Breeder Manaement Guide for eneral flock manaement recommendations, as well as uidelines concernin post peak feedin. Weihts correspond to the weekly anniversary date. Weihts for weeks 2 throuh 20 are off-feed weihts. From 21 weeks onward, (or when the chane is made to everyday feedin), birds can be weihed after a minimum of two hours has passed from the time of complete cleanup of the day s ration.

4 Cobb 500 SF Breeder Manaement Supplement Female Open Sided Rearin days Ae Bodyweiht Body Weiht weeks rams pounds Gain Please refer to the Cobb Breeder Manaement Guide for eneral flock manaement recommendations, as well as uidelines concernin post peak feedin. Weihts correspond to the weekly anniversary date Weihts for weeks 2 throuh 20 are off-feed weihts. From 21 weeks onward, (or when the chane is made to everyday feedin), birds can be weihed after a minimum of two hours has passed from the time of complete cleanup of the day s ration.

5 Adult Body Weihts Cobb 500 SF Breeder Manaement Supplement Ae Dark Out Female Body Weiht Open Sided Female Body Weiht rams rams pounds pounds

6 Cobb 500 SF Breeder Manaement Supplement E Weihts Ae weeks E Weiht rams Ae weeks E Weiht rams E weihts are dependent on the bodyweiht and production level of the hens, as well as the level of nutrition bein fed to the flock. These numbers are a uide only, and could vary considerably accordin to manaement conditions.

7 Breeder Performance Cobb 500 SF Breeder Manaement Supplement Ae Total Es Hatchin Mortality HE Total Hatch. Weekly Chicks in weeks (HW) Es (HW) () (weekly) Es (HH) Es (HH) () Hatch (HH)

8 Breeder Flock Fertility and Hatchability Cobb 500 SF Breeder Manaement Supplement Ae in Hatchability () Fertility () Hatch of fertiles () Chick No./hen housed Weeks Weekly Cum. Weekly Cum. Weekly Cum. Weekly Cum

9 Phase Cobb 500 SF Breeder Manaement Supplement Ae (days) (weeks) Lysine Methionine M + C Tryptophan Threonine Arinine Valine Isoleucine Leucine Histidine Phenylalanine P + T Recommended diestible amino acid levels based on amino acid / lysine ratios Starter Grower/ Pre-breeder Breeder Male* *The recommendations for males 155+ days of ae can be used if feedin a separate male feed in production is desired. Cobb males will perform well usin a normal hen diet throuhout their life, thus avoidin the need to formulate a diet specific for males in production.

10 Cobb 500 SF Breeder Manaement Supplement Recommended nutrient levels ( per 0 kcal / K metabolizable enery) Phase Ae (days) (weels) Crude Protein Calcium Av. Phosphorus Potassium Sodium Chloride Linoleic Acid Amino Acid Lysine Methionine M + C Tryptophan Threonine Arinine Valine Isoleucine Leucine Histidine Phenylalanine P + T Units Starter Di. Total Grower Di. Total Pre-breeder** Di Total Breeder Di Total Breeder Di Total Di Male* Total Example: To calculate starter crude protein, assumin a 2860 kcal/k metabolizable enery diet is * 6.60 = crude protein. ** The use of a pre-breeder is optional but recommended for those flocks that are underweiht or below desired body composition prior to liht stimulation. * The recommendations for males 155+ days of ae can be used if feedin a separate male feed in production is desired. Cobb males will perform well usin a normal hen diet throuhout their life, thus avoidin the need to formulate a diet specific for males in production.

11 Cobb 500 SF Breeder Manaement Supplement Example for a Breeder feedin proram based on recommended nutrient levels Phase Ae (days) (weeks) Metabolizable Enery Crude Protein Calcium Av. Phosphorus Sodium*** Chloride*** Potassium Linoleic Acid Amino Acid Lysine Methionine M + C Tryptophan Threonine Arinine Valine Isoleucine Leucine Histidine Phenylalanine P + T Pre-Starter* Starter Grower Pre-Breeder** Breeder Unit Male MJ/k kcal/k kcal/lb Di Total Di. Total Di. Total Di. Total Di Total Breeder Di Total Di. Total *The use of a Pre-Starter feed may be necessary if the required bodyweihts cannot be achieved with the Starter diet. In this case, the Starter diet may be used from 15 to 28 days. **The use of a Pre-Breeder is optional but recommended for those flocks that are underweiht or below desired body composition prior to liht stimulation. ***The concentrations may need to be adjusted dependin on individual experiences and local climate.

12 Phase Cobb 500 SF Breeder Manaement Supplement Recommended supplementary levels of vitamins and trace elements per tonne basis. Ae (days) (weeks) Vit. A (Maize Diets) Vit. A (Wheat Diets) Vit D Vit E Vit. K Thiamine Riboflavin Pantothenic Acid Niacin Pyridoxine Folic Acid Vit B12 Biotin (Maize Diets) Biotin (Wheat Diets) Vit. C Choline Units MIU MIU MIU KIU m m m Starter Grower Pre-breeder/ Breeder Mananese Zinc Iron Copper Iodine Selenium MIU = million international units; KIU = thousand international units; = rams; m = millirams Supplementary levels of vitamins and trace elements should always be reviewed to ensure total levels do not exceed those set in local leislation.

13 Cobb 500 SF Breeder Manaement Supplement Notes

14 cobb-vantress.com L November 15, 201