breeder management supplement - cobb vantress...
TRANSCRIPT
BreederManagementSupplement
bree
der
cobb-vantress.com
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
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.
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
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
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
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
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.
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.
Cobb Avian 48 Breeder Management SupplementRe
com
men
ded
nutr
ient
leve
ls (
% p
er 1
000
kcal
/ K
g m
etab
oliz
able
ene
rgy)
Crud
e Pr
otei
nCa
lciu
mAv
. Ph
osph
orus
Pota
ssiu
mSo
dium
Chlo
ride
Lino
leic
Aci
dAm
ino
Acid
Lysi
neM
ethi
onin
eM
+ C
Tryp
toph
anTh
reon
ine
Argi
nine
Valin
eIs
oleu
cine
Leuc
ine
His
tidi
nePh
enyl
alan
ine
P +
T
Phas
eA
ge (
days
)U
nits
% % % % % % % % % % % % % % % % % % %
6.63
00.
358
0.16
00.
215
0.06
70.
067
0.43
6D
ig.
0.32
20.
142
0.24
20.
071
0.22
50.
338
0.21
60.
225
0.38
00.
103
0.20
90.
370
Tota
l0.
359
0.15
80.
269
0.07
90.
251
0.37
70.
241
0.25
10.
424
0.11
50.
233
0.41
3
5.60
00.
383
0.15
60.
232
0.07
50.
075
0.43
0D
ig.
Tota
l0.
230
0.10
40.
196
0.05
80.
191
0.23
00.
173
0.19
10.
299
0.07
60.
150
0.27
6
Pre-
bree
der*
*12
6-15
4
Dig
.0.
220
0.09
90.
187
0.05
50.
183
0.22
00.
165
0.18
30.
286
0.07
30.
143
0.26
4
Tota
l0.
260
0.11
70.
221
0.06
50.
216
0.26
00.
195
0.21
60.
338
0.08
60.
169
0.31
2
Bree
der
115
5-28
0
Dig
.0.
230
0.10
80.
198
0.05
80.
173
0.20
70.
184
0.17
50.
258
0.07
80.
152
0.27
6
Tota
l0.
262
0.12
30.
225
0.06
60.
199
0.23
60.
210
0.19
90.
293
0.08
90.
173
0.31
4
Bree
der
228
1+
Dig
.0.
225
0.10
60.
194
0.05
60.
169
0.20
30.
180
0.17
10.
252
0.07
70.
149
0.27
0
Tota
l0.
255
0.12
00.
219
0.06
40.
194
0.23
00.
204
0.19
40.
286
0.08
70.
168
0.30
6
Mal
e*15
5+
Dig
.0.
152
0.07
60.
137
0.04
40.
141
0.15
20.
114
0.12
60.
182
0.05
30.
099
0.18
2
Tota
l0.
175
0.08
80.
158
0.05
10.
165
0.17
50.
131
0.14
50.
210
0.06
10.
114
0.21
0
5.59
00.
524
0.15
70.
227
0.06
60.
066
0.41
9
5.59
01.
048
0.15
70.
227
0.06
60.
066
0.45
4
5.24
01.
119
0.13
90.
209
0.06
60.
066
0.34
9
0.19
00.
086
0.16
20.
048
0.15
80.
190
0.14
30.
158
0.24
70.
063
0.12
40.
228
Star
ter
0-28
Gro
wer
29-1
25
4.71
70.
326
0.16
30.
218
0.06
90.
069
----
Exam
ple:
To
cal
cula
te s
tart
er c
rude
pro
tein
, as
sum
ing
a 28
60 k
cal/
kg m
etab
oliz
able
ene
rgy
diet
is
2.86
0 *
6.63
0 =
18.9
6 %
crud
e pr
otei
n. *
* Th
e us
e of
a p
re-b
reed
er i
s op
tion
al b
ut r
ecom
men
ded
for
thos
e flo
cks
that
are
und
erw
eigh
t or
bel
ow d
esir
ed b
ody
com
posi
tion
pri
or t
o lig
ht s
tim
ulat
ion.
* T
he r
ecom
men
dati
ons
for
mal
es 1
55+
days
of
age
can
be u
sed
if f
eedi
ng a
sep
arat
e m
ale
feed
in
pro
duct
ion
is d
esir
ed.
Cobb
mal
es w
ill p
erfo
rm w
ell u
sing
a n
orm
al h
en d
iet
thro
ugho
ut t
heir
life
, th
us a
void
ing
the
need
to
form
ulat
e a
diet
spe
cific
for
mal
es in
pro
duct
ion.
Cobb Avian 48 Breeder Management SupplementEx
ampleforaBr
eede
rfeed
ingpr
ogram
base
don
reco
mmen
dednu
trient
leve
ls
Ph
ase
Ag
e(d
ays)
(wee
ks)
Bre
eder
115
5-28
023
-40
Sta
rter
0-28
0-4
Pre
-Sta
rter
*0-
140-
2
Gro
wer
29-1
265-
18
*Th
eu
seo
fa
Pre
-Sta
rter
feed
may
be
nec
essa
ryif
the
req
uir
edb
ody
wei
gh
tsca
nn
ot
be
ach
ieve
dw
ith
the
Sta
rter
die
t.In
this
case
,th
eS
tart
erd
iet
may
be
use
dfr
om
15to
28d
ays.
**T
he
use
ofa
Pre
-Bre
eder
iso
pti
on
albu
trec
om
men
ded
for
tho
sefl
ock
sth
atar
eu
nd
erw
eig
hto
rb
elow
des
ired
bo
dyco
mp
osi
tio
np
rio
rto
ligh
tst
imu
lati
on
.**
*Th
eco
nce
ntr
atio
ns
may
nee
dto
be
adju
sted
dep
end
ing
on
ind
ivid
ual
exp
erie
nce
san
dlo
calc
limat
e.
Un
itM
ale
155+
23+
Bre
eder
228
1+41
+
Pre
-Bre
eder
**12
7-15
419
-22
11.5
027
4912
4712
.97
0.90
0.45
0.15
-0.2
00.
15-0
.24
0.60 -
0.42
0.21
0.38
0.12
0.39
0.42
0.31
0.35
0.50
0.15
0.27
0.50
Dig
.To
tal
0.48
0.24
0.43
0.14
0.45
0.48
0.36
0.40
0.58
0.17
0.31
0.58
11.5
027
4912
4714
.40
3.08
0.38
0.15
-0.2
00.
15-0
.24
0.57
0.96
0.70
0.33
0.60
0.18
0.53
0.63
0.56
0.53
0.79
0.24
0.46
0.84
Tota
lD
ig.
0.62
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
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
Cobb Avian 48 Breeder Management Supplement
Notes
L-2040-04February 15, 2013
cobb-vantress.com