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Page 1: Breeder Management Supplement - Cobb Vantress …cobb-vantress.com/docs/default-source/cobbavian48-guides/breeder... · Cobb Avian 48 Breeder Management Supplement Introduction This

BreederManagementSupplement

bree

der

cobb-vantress.com

Page 2: Breeder Management Supplement - Cobb Vantress …cobb-vantress.com/docs/default-source/cobbavian48-guides/breeder... · Cobb Avian 48 Breeder Management Supplement Introduction This

Cobb Avian 48 Breeder Management Supplement

Introduction

This Cobb Breeder Management Supplement is to be used in conjunction with the Cobb Breeder Management Guide to assist you in building your management program. Management 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 knowledge and practical experience, and reflect the genetic potential of the Cobb hen based on Total Egg and Hatch Percent records taken from the top 25% of Cobb flocks worldwide. This booklet should be used as a guide only, and adapted locally according to your own experience when projecting performance from all flocks in a particular operation. You should be aware of any local legislation which may influence the management practices that you should choose to adopt.

Please contact your Cobb Technical Representative for further assistance.

Revised 2013

Breeder Performance

Age at depletion (weeks) 60 65 (days) 420 455

Age at 5% production (weeks) 24 24 (days) 168 168

Total eggs/hen housed 170.3 186.8

Hatching eggs/hen housed (50g minimum) 165.6 181.7

Peak hatchability (%) 90 90

Cumulative hatchability (%) 86.6 85.6

Broiler chicks/hen housed 143.4 155.5

Livability from 24 weeks (%) 92.9 92.3

Female bodyweight (24 weeks) (kg) 2.99 (lb) 6.59

Female bodyweight (65 weeks) (kg) 4.06 (lb) 8.95

DARK OUT

Page 3: Breeder Management Supplement - Cobb Vantress …cobb-vantress.com/docs/default-source/cobbavian48-guides/breeder... · Cobb Avian 48 Breeder Management Supplement Introduction This

Cobb Avian 48 Breeder Management Supplement

Observations on the BW curve in rearing:

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

This BW curve was developed over the last 3 years and has been tested in several countries resulting in improved performance results.

The concave BW curve saves up to 700g of feed per female housed at 24 wks compared to the older version without affecting egg weight.

It better prepares the females for production (conformation and fat reserves at the moment of light stimulation).

Females have a tendency to start production with a lower BW which saves feed in production.

The lower BW curve will give reduced double yolks and very good livability in production.

There will only be 1 BW curve for the females and 2 for the males in rearing and production. There are 2 BW’s for the males for the 2 different types of males, as some operations work with the MX male and others with the Cobb male. As of 23 wks the BW’s are taken 8 hours after feeding starts in the morning (best time to take BW is around 1300-1400 hrs). If also dry weights are required after 22 wks of age deduct 130 g from the afternoon standard weight to get dry weight.

The BW curve goes together with a suggestion on the calorie and protein intake per bird per day for males and females. The data are a guide only then there are many factors that can influence calorie intake: environment, BW of the hens, feed presentation (mash or crumble), temperature conditions (open or closed houses), etc.

The suggested kcal levels in production of 465 kcal are based on mash diet in open sided houses. With environmental controlled houses the intake will reduce to 445-450 kcal on a pelleted-crumbled diet. The table of kcal given is more for open sided houses, due to the Cobb Avian 48 cross being used mostly in tropical and subtropical countries.

If with the calorie table a feed table is made, be flexible to always feed based on the BW development of the birds and not the other way around. If BW should advance much more than the standard or stay below the standard, immediate action needs to be taken to find the cause and adjust feed amounts.

At 20 weeks of age, many female flocks are being fed 100-105g of feed and at start of production around 115g of feed. These amounts are important to evaluate in your operation and can give you some indications, together with BW, if feeding is more or less in line.

Males are fed from moment of transfer to 25 wks of age based on the amount of feed they steal from the females. In many circumstances feed is left the same for several weeks to avoid males from gaining too rapidly due to stealing. The suggested Kcal for males in this period in the table requires that a good restriction is in place.

Production persistency is on average 10 wks over 80% production and 20 wks over 70% production.

Page 4: Breeder Management Supplement - Cobb Vantress …cobb-vantress.com/docs/default-source/cobbavian48-guides/breeder... · Cobb Avian 48 Breeder Management Supplement Introduction This

Body Weights (BW) and Energy Intake

Cobb Avian 48 Breeder Management Supplement

12345*678910111213141516171819202122

23**24252627282930

Female

150290415520610700790880970106011501240133014201520164017801940210022602380255028502990310032103310341035103590

6285101111111117123130134141148156165173185201221251274291305314322331339356400444465465

1503305206908501000114012701400152516501765188019952120227024302590275029103040317034003515363037303850395040504140

72132152165166176182185190199201206218226237251267295310322335329340350348346351351355361

145340520665800930106011901320145515701695181019202035216023002450260027252850297032303355348536103735386539303970

71129151163164171176182184194196202214222232245260287301311325319329339339340345348349351

Cobb Male Cobb MX Male

* From 4 to 5 weeks, normally the feed formulation reduces energy, although feed amounts per bird would increase.** As of 23 weeks, the body weights are taken in the afternoon (wet/every day feeding).

BWDry-Wet (g)

BWDry-Wet (g)

BWDry-Wet (g)Kcal/bird/day Kcal/bird/day Kcal/bird/dayAge

Page 5: Breeder Management Supplement - Cobb Vantress …cobb-vantress.com/docs/default-source/cobbavian48-guides/breeder... · Cobb Avian 48 Breeder Management Supplement Introduction This

Body Weights (BW) and Energy Intake

Cobb Avian 48 Breeder Management Supplement

303132333435363738394041424344454647484950515253545556575859606162636465

Female

359036503680370037203740375537703785380038103820383038403850386038703880389039003910392039303940395039603970398039904000401040204030404040504060

465459456453450447445442439436433433430430428428428425425425422422422419419419416416416416413413413413410410

414041854230425542754300432043404365438544104430445544754500452045404565458546104630465546754700472047454765478548104830485548704885490049154930

361360361362365364366367368370372375378379380379380380380380380380380380383383383383383383383386386386386385

397040154060408541054130415041704195421542404260428543054330435043704395441544404460448545054530455045754595461546404660468547004715473047454760

351350351352355354356357358360362365368369370370371371371371371371371371374374374374374374374377377377377377

Cobb Male Cobb MX MaleBW

Wet (g)BW

Wet (g)BW

Wet (g)Kcal/bird/day Kcal/bird/day Kcal/bird/dayAge

Page 6: Breeder Management Supplement - Cobb Vantress …cobb-vantress.com/docs/default-source/cobbavian48-guides/breeder... · Cobb Avian 48 Breeder Management Supplement Introduction This

Cobb Avian 48 Breeder Management Supplement

Egg Weights

Egg weights are taken from wide spectrum of flocks in different countries.The egg weight average does not include double yolks and undersized eggs.Egg weight is strongly influenced by female BW. If the BW goes up after peak production, so does egg weight. Flocks with too heavy egg size too early are normally caused by excessive BW’s or extreme high levels of AA and linoleic acid.

Good BW control is needed after peak to enhance production persistency, control egg weight and have less mortality in females. In general the objective is to avoid egg weight averages over 70 g by having good female BW controls.

The egg weight numbers are taken normally in the morning between 9 and 10 am to have a good representative example. In flocks with automatic packing machines all eggs can be weighed and a real average can be determined. Some farmers use this info to help in defining feed withdrawal.

Hand weighing the eggs requires a representative sample of 360 eggs (case).

242526272829303132333435363738394041424344

48.049.951.353.355.356.757.858.659.760.561.161.662.262.663.364.064.664.965.465.866.2

1.91.61.82.01.41.11.01.10.80.50.40.30.40.40.40.40.30.40.40.4

454647484950515253545556575859606162636465

66.466.666.967.267.567.868.068.168.468.668.869.069.169.269.369.469.569.769.870.170.4

AgeWeeks grams

Egg Weight Gain AgeWeeks grams

Egg Weight Gain

0.30.20.30.30.30.30.20.20.20.20.20.20.20.20.10.10.10.20.10.10.1

Page 7: Breeder Management Supplement - Cobb Vantress …cobb-vantress.com/docs/default-source/cobbavian48-guides/breeder... · Cobb Avian 48 Breeder Management Supplement Introduction This

75.080.082.584.085.587.088.089.089.490.089.689.589.489.389.289.189.088.888.688.388.087.787.487.086.686.285.885.384.884.383.883.082.381.580.479.378.176.975.874.673.371.9

2.015.045.064.078.083.087.087.586.585.584.583.582.581.580.579.578.577.476.475.374.373.272.271.169.968.867.766.665.564.463.362.060.759.458.056.655.253.852.451.049.648.2

0.250.500.751.151.602.102.402.652.873.073.223.373.523.673.823.974.124.274.424.574.724.875.025.175.325.475.625.775.926.076.226.376.526.676.826.977.127.277.387.487.587.68

30.050.070.095.096.097.098.098.599.099.098.998.898.798.698.598.498.398.298.198.198.198.198.198.198.198.198.198.198.198.198.198.197.997.997.997.997.997.897.897.897.897.8

0.11.24.38.714.119.825.731.737.643.449.154.860.365.871.276.681.987.092.297.2102.1107.0111.8116.5121.2125.7130.2134.6138.9143.1147.3151.4155.3159.2163.0166.7170.3173.8177.2180.5183.7186.8

Breeder Performance

Cobb Avian 48 Breeder Management Supplement

242526272829303132333435363738394041424344454647484950515253545556575859606162636465

Age Total Eggs Hatching Mortality % HE Total Hatch. Weekly Chicks in weeks (%HW) Eggs (%HW) (%) (weekly) Eggs (HH) Eggs (HH) (%) Hatch (HH)

0.67.531.560.874.980.585.386.285.684.683.682.581.480.479.378.277.176.074.973.972.871.870.869.768.667.566.565.464.363.262.160.959.558.256.855.554.152.751.349.948.647.2

0.00.62.87.012.117.623.529.335.240.946.652.157.663.168.473.778.883.988.993.998.7103.5108.2112.8117.4121.9126.3130.6134.8139.0143.0147.0150.9154.7158.4162.0165.6169.0172.3175.5178.7181.7

0.00.42.35.810.215.020.125.430.635.740.845.850.755.560.365.069.674.178.682.987.291.495.599.5103.4107.3111.1114.7118.3121.8125.2128.6131.8134.9137.8140.7143.4146.1148.6151.0153.3155.5

Page 8: Breeder Management Supplement - Cobb Vantress …cobb-vantress.com/docs/default-source/cobbavian48-guides/breeder... · Cobb Avian 48 Breeder Management Supplement Introduction This

75.080.082.584.085.587.088.089.089.490.089.689.589.489.389.289.189.088.888.688.388.087.787.487.086.686.285.885.384.884.383.883.082.381.580.479.378.176.975.874.673.371.9

88.090.093.094.095.095.096.096.596.596.796.796.796.796.696.696.596.596.496.296.296.196.196.095.795.595.395.094.794.594.294.093.893.293.092.091.590.393.089.088.587.087.0

85.288.988.789.490.091.691.792.292.693.192.792.692.592.492.392.392.292.192.091.791.591.291.090.990.690.490.390.089.789.489.188.588.387.687.486.686.585.485.184.284.282.6

85.288.688.789.189.590.190.590.991.291.491.691.791.891.891.991.991.991.991.991.991.991.991.891.891.791.791.691.691.591.591.491.391.391.291.191.090.990.890.790.690.590.4

0.030.421.813.534.414.805.135.235.215.175.074.994.924.844.764.694.604.524.444.354.274.194.114.023.943.853.773.683.593.503.423.313.203.102.982.862.752.632.522.412.302.19

0.00.42.35.810.215.020.125.430.635.740.845.850.755.560.365.069.674.178.682.987.291.495.599.5103.4107.3111.1114.7118.3121.8125.2128.6131.8134.9137.8140.7143.4146.1148.6151.0153.3155.5

Breeder Flock Fertility and Hatchability

Cobb Avian 48 Breeder Management Supplement

242526272829303132333435363738394041424344454647484950515253545556575859606162636465

75.079.681.983.284.285.185.886.486.987.487.687.888.088.188.288.288.388.388.388.388.388.388.288.288.188.088.087.987.887.787.687.487.387.287.086.886.686.486.286.085.885.6

88.089.992.493.394.194.394.895.195.395.595.795.895.995.996.096.096.196.196.196.196.196.196.196.196.096.096.095.995.995.895.895.795.795.695.595.495.395.295.195.094.894.7

Age in Hatchability (%) Fertility (%) Hatch of fertiles (%) Chick No./hen housed Weeks Weekly Cum. Weekly Cum. Weekly Cum. Weekly Cum.

Page 9: Breeder Management Supplement - Cobb Vantress …cobb-vantress.com/docs/default-source/cobbavian48-guides/breeder... · Cobb Avian 48 Breeder Management Supplement Introduction This

Lysine

Methionine

M + C

Tryptophan

Threonine

Arginine

Valine

Isoleucine

Leucine

Histidine

Phenylalanine

P + T

100

44

75

22

70

105

67

70

118

32

65

115

100

45

85

25

83

100

75

83

130

33

65

120

100

47

86

25

75

90

80

76

112

34

66

120

100

50

90

29

93

100

75

83

120

35

65

120

Recommended digestible amino acid levelsbased on amino acid / lysine ratios

Cobb Avian 48 Breeder Management Supplement

Phase

Age (days)

Starter

0-28

Grower/Pre-breeder

29-154

Breeder

155+

Male*

155+

*The recommendations for males 155+ days of age can be used if feeding a separate male feed in production is desired. Cobb males will perform well using a normal hen diet throughout their life, thus avoiding the need to formulate a diet specific for males in production.

Page 10: Breeder Management Supplement - Cobb Vantress …cobb-vantress.com/docs/default-source/cobbavian48-guides/breeder... · Cobb Avian 48 Breeder Management Supplement Introduction This

Cobb Avian 48 Breeder Management SupplementRe

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Page 11: Breeder Management Supplement - Cobb Vantress …cobb-vantress.com/docs/default-source/cobbavian48-guides/breeder... · Cobb Avian 48 Breeder Management Supplement Introduction This

Cobb Avian 48 Breeder Management SupplementEx

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0.29

0.53

0.15

0.46

0.56

0.49

0.47

0.69

0.21

0.41

0.74

Tota

l

11.5

527

6112

5215

.43

2.89

0.43

0.15

-0.2

00.

15-0

.24

0.63

1.25

0.72

0.34

0.62

0.18

0.55

0.65

0.58

0.55

0.81

0.25

0.48

0.87

0.64

0.30

0.55

0.16

0.48

0.57

0.51

0.48

0.71

0.22

0.42

0.76

Dig

.

11.5

527

6112

5215

.43

1.45

0.43

0.15

-0.2

00.

15-0

.24

0.63

1.16

Tota

lD

ig.

0.72

0.32

0.61

0.18

0.60

0.72

0.54

0.60

0.93

0.24

0.47

0.86

0.61

0.27

0.52

0.15

0.51

0.61

0.46

0.51

0.79

0.20

0.39

0.73

0.59

0.27

0.51

0.15

0.49

0.59

0.45

0.49

0.77

0.20

0.39

0.71

0.49

0.22

0.42

0.12

0.41

0.49

0.37

0.41

0.64

0.16

0.32

0.59

Dig

.To

tal

10.8

025

8111

7114

.45

0.99

0.40

0.18

-0.2

00.

18-0

.24

0.60

1.11

11.7

027

9612

6818

.54

1.00

0.45

0.18

-0.2

00.

18-0

.24

0.60

1.22

Tota

lD

ig.

0.90

0.40

0.68

0.20

0.63

0.95

0.60

0.63

1.06

0.29

0.58

1.03

1.00

0.44

0.75

0.22

0.70

1.05

0.67

0.70

1.19

0.32

0.65

1.15

1.25

0.55

0.94

0.28

0.88

1.31

0.84

0.88

1.48

0.40

0.81

1.44

Tota

lD

ig.

1.12

0.49

0.84

0.25

0.78

1.18

0.75

0.78

1.32

0.36

0.73

1.29

12.0

028

6813

0120

.00

1.00

0.45

0.18

-0.2

00.

18-0

.24

0.60

1.25

MJ/

kgkc

al/k

gkc

al/lb

% % % % % % % % % % % % % % % % % % %

Met

abol

izab

leE

nerg

y

Cru

deP

rote

inC

alci

umA

v.P

hosp

horu

sS

odiu

m**

*C

hlor

ide*

**P

otas

sium

Lino

leic

Aci

dA

min

oA

cid

Lysi

neM

ethi

onin

eM

+C

Tryp

toph

anT

hreo

nine

Arg

inin

eVa

line

Isol

euci

neLe

ucin

eH

istid

ine

Phe

nyla

lani

neP

+T

Page 12: Breeder Management Supplement - Cobb Vantress …cobb-vantress.com/docs/default-source/cobbavian48-guides/breeder... · Cobb Avian 48 Breeder Management Supplement Introduction This

Recommended supplementary levels of vitaminsand trace elements per tonne basis.

Phase

Age (days)

Pre-breeder/Breeder

126+MIU

MIU

MIU

KIU

g

g

g

g

g

g

g

mg

mg

mg

g

g

g

g

g

g

g

g

10

11

3

75-80

3

2

5-8

8-12

20-40

3

1.5

25

250

300

25

300-350

100

100

20-50

10-15

1.5

0.3

10

11

3

45-50

3

2

5-7

8-10

20-35

3

1

20

250

300

25

200-300

100

120

20-50

10-15

0.5

0.3

12

13

3

50-100

6

2.5-3.5

10-16

25

40

6

4

35-40

300

375

50

250-450

120

110

40-55

10-15

2

0.3

Units Starter

0-28

Grower

29-125

MIU = million international units; KIU = thousand international units; g = grams; mg = milligramsSupplementary levels of vitamins and trace elements should always be reviewed to ensure total levels do not exceed those set in local legislation.

Cobb Avian 48 Breeder Management Supplement

Vit. A (Maize Diets)

Vit. A (Wheat Diets)

Vit D3

Vit E

Vit. K

Thiamine

Riboflavin

Pantothenic Acid

Niacin

Pyridoxine

Folic Acid

Vit B12

Biotin (Maize Diets)

Biotin (Wheat Diets)

Vit. C

Choline

Manganese

Zinc

Iron

Copper

Iodine

Selenium

Page 13: Breeder Management Supplement - Cobb Vantress …cobb-vantress.com/docs/default-source/cobbavian48-guides/breeder... · Cobb Avian 48 Breeder Management Supplement Introduction This

Cobb Avian 48 Breeder Management Supplement

Notes

Page 14: Breeder Management Supplement - Cobb Vantress …cobb-vantress.com/docs/default-source/cobbavian48-guides/breeder... · Cobb Avian 48 Breeder Management Supplement Introduction This

L-2040-04February 15, 2013

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