NU06 Feeding Guidelines For Nicholas & But Heavy Lines en
NU06 Feeding Guidelines For Nicholas & But Heavy Lines en
NU06 Feeding Guidelines For Nicholas & But Heavy Lines en
27/8/11
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Feeding Programmes
The recommended schedules split the turkeys life into seven phases.
The objective is to provide the optimum balance of nutrients for the
development of the turkey within that time period.
There may be good reasons to use different phases of feeding due to
management and other issues so these guidelines can be regarded as a
tool that can be used to construct feeding programmes that apply to each
companys requirements.
The more diets there are in the feeding programme the more efficiently
the feeding schedule will match the birds requirements.
An Excel spreadsheet is available on the Aviagen Turkeys website that
will the enable user to easily calculate a suitable feeding schedule based
on the data shown in this booklet.
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Feed Density
The recommended schedules split the turkeys life into seven phases.
The objective is to provide the optimum balance of nutrients for the
development of the turkey within that time period.
The guidelines in Table 1 assume a fixed relationship between diet energy
and nutrient levels in each phase. The decision on what energy density
should be used needs to take into account several factors:
Economics
- current and future prices for feed and feed ingredients
- current and future prices for sales of the meat and products
The objectives of the company or farmer
- lowest cost of liveweight production
- least cost deboned breast meat
- maximised yield from the facilities
- lowest FCR
Health status of the turkeys
- in areas of high disease challenge higher density nutrition can help
to support the turkeys during periods of risk.
- in periods of enteric upset a lower density ration can reduce
diarrhoea problems.
Weather conditions
- in hot weather feed intake may be reduced with a consequence of
lower weights or meat yields.
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Feed Composition
Energy
Turkeys require energy for growth of tissue, maintenance and activity.
Carbohydrate sources, such as corn and wheat, and various fats or oils are
the major source of energy in poultry feeds. Energy levels in diets are
expressed in Megajoules (MJ/kg) or kilocalories (kcal/kg) of Metabolisable
Energy (ME), as this represents the energy available to the turkey.
Protein
Feed proteins, such as those in cereals and soybean meal, are complex
compounds which are broken down by digestion into amino acids. These
amino acids are absorbed and assembled into body proteins which are used
in the construction of body tissue, e.g. muscles, nerves, skin and feathers.
Dietary crude protein levels do not indicate the quality of the proteins in
feed ingredients. Diet protein quality is based on the level, balance and
digestibility of essential amino acids in the final mixed feed.
Macro Minerals
The provision of the correct levels of the major minerals in the appropriate
balance is important for all turkeys. The macro minerals involved are
calcium, phosphorus, sodium, potassium and chloride.
Calcium and Phosphorus:
Calcium influences growth, feed efficiency, bone development, leg health,
nerve function and the immune system. It is vital that calcium is supplied
in adequate quantities and on a consistent basis. Phosphorus, like calcium,
is required in the correct form and quantity to optimise skeletal structure
and growth.
Sodium, Potassium and Chloride:
These minerals are needed for general metabolic functions. Shortages can
affect feed intake, growth and blood pH. Excess levels of these minerals
result in increased water intake and subsequent poor litter quality.
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Enzymes
Two types of enzyme are generally used in turkey diets:
NSP Enzymes:Cereals contain some none starch polysaccharides (NSP) as part of the
carbohydrate complex. The type and levels of NSPs varies in different
cereals: Rye having the highest levels and Maize the lowest. These NSPs
cannot be readily digested by turkeys due to the lack of natural enzymes
to break them down, and then they form complexes in the gut resulting
in poorer digestion and problematic faeces.
The addition of NSP enzymes in the feed, targeted at the specific cereal
being used, can improve digestion and release extra energy and minerals
for absorption by the turkey.
Phytase Enzymes:Ingredients of plant origin contain a lot of phosphorus which is naturally
bound into a Phytate molecule. Turkeys cannot access this phosphorus
as they lack an enzyme to break down the complex.
Addition of a Phytase enzyme to the diet releases some of the
phosphorus and calcium, which reduces the need to add additional
minerals to the feed and reduces phosphate pollution if the litter is used
as a fertilizer.
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Feed Ingredients
Attention should also be paid to the quality and digestibility of dietary
protein.
The inclusion of fishmeal in diets for young turkeys, where permitted
under local regulations, helps to improve the amino acid balance and
reduce the risks from over reliance on Soya. The use of ingredients with
protein of poor digestibility should be restricted. Excess of undigested
protein will be excreted causing an increased litter ammonia
concentration. This may increase the incidence of breast condemnations
or cause environmental nuisance.
Fats are an important energy source in turkey diets but young turkeys
have a limited capacity to digest some of the fatty acids found in some
types of fat. Generally the use of pure vegetable fats like Soyabean oil is
recommended for starter diets and the proportion of lower quality fats or
Blends with high levels of free fatty acids or high in palmitic or stearic
acid should be restricted until the birds get older.
Table 4 shows guidelines for the inclusion of some feed ingredients.
Feed Structure
In the first 24 -72 hours it is very important to get the poults to consume
as much food as possible. Early management in terms of feed
presentation, lighting and temperature must encourage the poults to eat.
To start the poults the diet needs to have enough structure to enable the
young birds to pick up particles. If it is too fine and dusty then the poults
may not be able to select enough particles and will not consume enough;
however if the particles are too large then the poults will not be able to
swallow them and so will not eat enough food to get them off to a good
start.
The starter feed should be presented as a coarsely ground meal or a
sieved crumble made from hard pellets of a maximum diameter of 3.5
mm. Small diameter pellets 1.5-2.0 mm can be used, but the pellets
should not be longer than the diameter.
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As the poults get older the grist or crumble size can be coarser, and small
diameter pellets (3.5 mm) can be introduced after 21 days.
To manufacture good pellets and crumbles many feedmills will grind the
ingredients to a fine powder to improve the cohesion when it is
conditioned and pelleted. When the turkey consumes these pellets or
crumbles the processed feed will dissolve into a fine paste in the crop
when mixed with water, this then passes in the gizzard. The gizzard
should act to further process the feed by grinding it down, but without
any coarse structure the gizzard muscles do not develop and the enzyme
production is low. Using coarsely ground cereals or adding whole or
cracked grains of cereals to the diet will stimulate the gizzard to develop
naturally and will increase enzyme production, improve food utilisation,
improve litter conditions and help to reduce enteric problems.
Whole Grain
The addition of whole grain to the diets helps improve gut integrity and
allows the producer some flexibility in adjusting diet composition and
controlling cost.
There are different ways that whole grain is now used to feed turkeys:1. In a controlled way when grain is added at fixed levels and the diets
are adjusted to take account of this so that the correct nutrient
package is consumed. The inclusion of whole grains can be at the
feedmill or on the farm using blending systems.
2. Another method is using whole grain to dilute the diet. This may be at
controlled or uncontrolled levels. In a controlled programme a series
of addition levels of the whole grain can be calculated to ensure the
overall combination of feed and grain matches reasonably closely the
turkeys requirements. However in an uncontrolled programme the
level added may be dictated by the farmers reaction to bird weight or
performance. The level of grain added may be varied according to the
desired outcome using on farm blending systems. Dilution of the diet
can lead to suboptimal performance, but can also result in a reduced
cost of gain. Such programmes need close coordination between
growers and processors to achieve common objectives.
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DAYS
DAYS
1.41
0.50
0.91
0.20
0.82
1.43
0.94
0.86
0.53
0.96
0.21
0.86
1.51
0.99
0.90
1.18
0.60
0.58
0.14
0.16
Digestible
Total
1.48
1
0-21
0-21
0.78
0.87
1.32
0.76
0.20
0.85
0.46
1.29
Total
1.06
0.53
0.52
0.13
0.15
0.74
0.82
1.24
0.71
0.19
0.80
0.44
1.21
Digestible
2
22-42
22-42
0.64
0.71
1.07
0.62
0.17
0.69
0.38
1.03
Digestible
0.60
0.67
1.00
0.59
0.15
0.66
0.37
0.97
Total
0.84
0.42
0.42
0.11
0.14
0.55
0.63
0.92
0.54
0.15
0.61
0.33
0.89
Digestible
4
64-84
57-70
0.52
0.59
0.85
0.52
0.15
0.58
0.32
0.83
Total
0.72
0.36
0.37
0.11
0.13
0.48
0.54
0.79
0.47
0.13
0.53
0.29
0.76
Digestible
5
85-105
71-84
0.42
0.47
0.68
0.41
0.12
0.48
0.27
0.66
Digestible
0.64
0.32
0.32
0.10
0.13
0.46
0.52
0.75
0.45
0.14
0.53
0.30
0.72
Total
6
106-126
85-98
0.36
0.42
0.59
0.36
0.11
0.44
0.24
0.56
Digestible
0.56
0.28
0.28
0.10
0.13
0.40
0.45
0.64
0.39
0.14
0.48
0.27
0.61
Total
7
127-147
99-126
0.94
0.47
0.47
0.12
0.14
0.69
0.77
1.15
0.67
0.18
0.74
0.41
1.12
Total
3
43-63
43-56
27/8/11
MINERALS
Calcium
Available Phosphorous
NPP*
Sodium**
Chloride**
RATION NUMBER
MALES
FEMALES
AMINO ACIDS
Lysine
Methionine
Methionine + Cystine
Tryptophan
Threonine
Arginine
Valine
iso-Leucine
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Feed Calculator
The Aviagen feed calculator is provided in an excel spread sheet on the
Aviagen Turkeys website. This tool allows users to enter their current or
planned feeding programme and the energy level of the diets that will
be used. Up to 10 feeding periods can be accommodated. The spread
sheet then uses a regression to calculate the lysine level, based on the
age of the turkeys at the middle of each feeding period. Then the other
amino acids are calculated by reference to an Ideal Protein Model see
below, this expresses the level of each amino acid in a relationship to the
lysine level.
This spread sheet allows users to evaluate different feeding scenarios,
based on Aviagens core nutritional guidelines. There are options to look
at Total and Digestible amino acid guidelines for males. A separate sheet
provides guidelines on feeding females. There are also sections where
the users can enter their current feeding programme and see their
nutrient values in comparison with the Aviagen guidelines in a graphical
format.
Trp
Arg
Val
Ileu
1-21
1-21
22-42
22-42
43-63
43-56
64-84
57-70
85-105
71-84
106-126 85-98
127-147 99-126 100% 43% 78% 63% 20% 105% 74% 65%
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%
%
%
%
%
%
MINERALS
Calcium
Available Phosphorous
NPP*
Sodium
Chloride
Linoleic Acid (18:2)
0.96
1.68
1.10
1.00
1.01
1.77
1.16
1.06
1.38
0.70
0.67
0.16
0.19
1.25
1.07
0.24
0.25
0.59
0.62
1.12
1.65
Digestible
1.73
Total
1
0-21
0-21
26-28
1268
2790
11.7
0.93
1.04
1.57
0.90
0.24
1.01
0.55
1.53
Total
1.26
0.63
0.62
0.15
0.18
1.20
0.88
0.98
1.48
0.85
0.23
0.95
0.52
1.44
Digestible
2
22-42
22-42
24-26
1290
2838
11.9
0.78
0.86
1.29
0.75
0.20
0.84
0.46
1.25
Digestible
1.14
0.57
0.57
0.15
0.17
0.84
0.93
1.39
0.81
0.22
0.90
0.50
1.35
Total
3
43-63
43-56
23-25
1312
2886
12.1
0.74
0.83
1.23
0.72
0.19
0.81
0.45
1.19
Total
1.03
0.52
0.52
0.14
0.17
0.68
0.77
1.13
0.66
0.18
0.75
0.41
1.09
Digestible
4
64-84
57-70
20-22
1333
2933
12.3
0.66
0.74
1.07
0.65
0.19
0.73
0.40
1.04
Total
0.91
0.45
0.46
0.14
0.16
0.61
0.68
0.99
0.59
0.17
0.67
0.37
0.96
Digestible
5
85-105
71-84
18-20
1366
3005
12.6
0.54
0.60
0.88
0.52
0.16
0.62
0.34
0.85
Digestible
0.83
0.41
0.41
0.13
0.17
0.59
0.66
0.97
0.57
0.18
0.69
0.38
0.93
Total
6
106-126
85-98
15-18
1399
3076
12.9
0.48
0.55
0.78
0.47
0.15
0.58
0.32
0.74
Digestible
0.74
0.37
0.37
0.13
0.17
0.53
0.60
0.85
0.52
0.18
0.63
0.35
0.81
Total
7
127-147
99-126
14-17
1431
3148
13.2
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%
%
%
%
%
%
%
%
DAYS
DAYS
%
Cals/Lb
Kcals/kg
Mj/Kg
AMINO ACIDS
Lysine
Methionine
Methionine + Cystine
Tryptophan
Threonine
Arginine
Valine
iso-Leucine
RATION NUMBER
MALES
FEMALES
Protein
Energy
Feeding recommendations_2208:Layout 2
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%
%
%
%
%
%
MINERALS
Calcium
Available Phosphorous
NPP*
Sodium
Chloride
Linoleic Acid (18:2)
0.60
1.09
0.24
0.97
1.71
1.12
1.02
0.63
1.14
0.25
1.02
1.80
1.18
1.08
1.40
0.71
0.69
0.16
0.19
1.25
1.67
Digestible
1.76
Total
1
0-21
0-21
26-28
1290
2838
11.9
0.95
1.07
1.61
0.92
0.25
1.04
0.56
1.57
Total
1.29
0.65
0.64
0.15
0.18
1.20
0.90
1.00
1.52
0.87
0.24
0.97
0.53
1.48
Digestible
2
22-42
22-42
24-26
1323
2909
12.2
0.81
0.90
1.34
0.78
0.21
0.87
0.48
1.30
Digestible
1.19
0.59
0.59
0.16
0.18
0.87
0.97
1.45
0.84
0.23
0.94
0.52
1.41
Total
3
43-63
43-56
23-25
1366
3005
12.6
0.78
0.87
1.29
0.76
0.20
0.85
0.47
1.25
Total
1.08
0.55
0.55
0.15
0.18
0.71
0.81
1.19
0.69
0.19
0.79
0.43
1.14
Digestible
4
64-84
57-70
20-22
1399
3076
12.9
0.69
0.78
1.12
0.68
0.20
0.76
0.42
1.09
Total
0.95
0.47
0.48
0.15
0.17
0.64
0.71
1.04
0.62
0.18
0.70
0.39
1.01
Digestible
5
85-105
71-84
18-20
1431
3148
13.2
0.57
0.63
0.92
0.55
0.17
0.65
0.36
0.89
Digestible
0.86
0.43
0.43
0.14
0.18
0.62
0.70
1.01
0.60
0.19
0.72
0.40
0.97
Total
6
106-126
85-98
15-18
1464
3219
13.5
0.50
0.57
0.82
0.49
0.16
0.61
0.33
0.77
Digestible
0.77
0.39
0.39
0.14
0.18
0.55
0.63
0.89
0.54
0.19
0.66
0.37
0.85
Total
7
127-147
99-126
14-17
1496
3291
13.8
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09:48
%
%
%
%
%
%
%
%
DAYS
DAYS
%
Cals/Lb
Kcals/kg
Mj/Kg
AMINO ACIDS
Lysine
Methionine
Methionine + Cystine
Tryptophan
Threonine
Arginine
Valine
iso-Leucine
RATION NUMBER
MALES
FEMALES
Protein
Energy
Feeding recommendations_2208:Layout 2
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PAGE 15
%
%
%
%
%
%
MINERALS
Calcium
Available Phosphorous
NPP*
Sodium
Chloride
Linoleic Acid (18:2)
0.62
1.12
0.25
1.00
1.76
1.16
1.06
0.65
1.18
0.26
1.06
1.86
1.22
1.11
1.45
0.74
0.71
0.17
0.20
1.25
1.73
Digestible
1.82
Total
1
0-21
0-21
26-28
1333
2933
12.3
1.00
1.12
1.69
0.97
0.26
1.09
0.59
1.65
Total
1.36
0.68
0.67
0.16
0.19
1.20
0.95
1.05
1.59
0.91
0.25
1.02
0.56
1.55
Digestible
2
22-42
22-42
24-26
1388
3053
12.8
0.85
0.94
1.41
0.82
0.22
0.92
0.50
1.36
Digestible
1.24
0.62
0.62
0.16
0.19
0.91
1.01
1.52
0.88
0.24
0.98
0.55
1.47
Total
3
43-63
43-56
23-25
1431
3148
13.2
0.81
0.91
1.35
0.79
0.21
0.89
0.49
1.31
Total
1.13
0.57
0.57
0.15
0.19
0.75
0.85
1.24
0.72
0.20
0.82
0.45
1.20
Digestible
4
64-84
57-70
20-22
1464
3219
13.5
0.72
0.81
1.17
0.71
0.21
0.80
0.44
1.14
Total
1.00
0.49
0.50
0.15
0.18
0.67
0.74
1.08
0.65
0.19
0.73
0.41
1.05
Digestible
5
85-105
71-84
18-20
1496
3291
13.8
0.59
0.66
0.96
0.57
0.18
0.68
0.37
0.93
Digestible
0.90
0.45
0.45
0.14
0.19
0.65
0.73
1.06
0.63
0.20
0.75
0.42
1.01
Total
6
106-126
85-98
15-18
1529
3363
14.1
0.52
0.60
0.85
0.51
0.16
0.63
0.35
0.81
Digestible
0.81
0.40
0.40
0.14
0.19
0.58
0.65
0.93
0.57
0.20
0.69
0.38
0.88
Total
7
127-147
99-126
14-17
1561
3434
14.4
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09:48
%
%
%
%
%
%
%
%
DAYS
DAYS
%
Cals/Lb
Kcals/kg
Mj/Kg
AMINO ACIDS
Lysine
Methionine
Methionine + Cystine
Tryptophan
Threonine
Arginine
Valine
iso-Leucine
RATION NUMBER
MALES
FEMALES
Protein
Energy
Feeding recommendations_2208:Layout 2
Page 15
PAGE 16
iu
iu
iu
mg
mg
mg
mg
mg
mg
mg
mg
mg
mg
12
80
120
0.3
100
2
4-6 weeks
Wheat
Maize
Based
Based
10000
8000
3500
3500
50
50
2
2
2
2
5
5
60
65
15
16
5
4
0.30
0.20
2
2
0.020
0.020
1200
1200
12
60
110
0.3
100
2
7-12 weeks
Wheat
Maize
Based
Based
8000
7000
3000
3000
30
30
2
2
2
2
5
5
50
55
15
16
4
3
0.20
0.15
1
1
0.015
0.015
600
600
12
45
110
0.25
80
1
13-16 weeks
Wheat
Maize
Based
Based
7000
6000
3000
3000
25
25
2
2
1.5
1.5
4
4
40
45
12
12
3
2
0.15
0.10
1
1
0.015
0.015
400
400
10
45
110
0.2
80
1
17 + weeks
Wheat
Maize
Based
Based
6000
5000
2500
2500
20
20
2
2
1.5
1.5
4
4
40
45
12
12
2
1.5
0.10
0.10
1
1
0.010
0.010
300
300
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09:48
Levels of some vitamins and minerals, that can be added to the feed, may be controlled by local regulations and these should be observed.
Vitamin stability can be affected by heat processing of the feed and an allowance may need to be made to offset any losses.
12
100
130
0.5
0.4
100
3
0-3 weeks
Wheat
Maize
Based
Based
12000
11000
4000
4000
100
100
4
4
4
4
10
10
75
80
25
28
7
6
0.30
0.20
4
4
0.030
0.030
1600
1600
Vitamin A
Vitamin D3
Vitamin E
Vitamin K
Thiamin (B1)
Riboflavin (B2)
Nicotinic Acid
Pantothenic Acid
Pyridoxine (B6)
Biotin
Folic Acid
Vitamin B12
Choline
Feeding recommendations_2208:Layout 2
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PAGE 17
0
0
0
5
3
5
3
3
40
10
40
0
0
0
0
0
0
0
0
7
5
7
7.5
5
5
35
10
15
0
0
0
0
0
0
0
0
0 100 0
20 100 20
0 20 0
0 10 0
0 20 0
10
5
10
7.5
7.5
10
7.5
10
30
10
15
100
100
25
10
20
0
0
Animal/Veg blend,
FFA < 15%, C18.2 > 15%
Poultry Fat
2
0
0
0
0
0
0
0
0
0
5
1
1
0
5
15
3
5
5
5
0
0
0
0
0
0
0
0
0
0
5
2
2
0
5
15
5
5
8
5
0
0
0
0
0
0
0
0
0
0
10
10
10
10
5
5
0
5
15
8
5
10
5
The use of fish meal and other animal proteins may be controlled by local regulations.
These should be checked before use.
Minimum in starter diets to reduce soya levels if no other animal protein.
5
0
0
5
5
20
2
7
3
5
1
0
0
0
0
0
0
2.54
0
0
Cereal By-products
Wheat Bran
Maize Gluten Meal
Middlings
Distillers Dark Grains
+ Solubles
Animal Proteins 3
Fish Meal
Meat + Bone Meal
Poultry Meal
09:48
5
2.5
5
0
0
0
0
0
0
0
0
0
100
100
15
10
20
0-6
7-12
13-15
15-21
Weeks
Weeks
Weeks
Weeks
Min Max Min Max Min Max Min Max
%
% % % %
% %
%
27/8/11
Peas
Field Beans
Combined Constraint
Total Pulses
0
0
0
0
Extracted Rapeseed
Whole Rapeseed
Combined Constraint
Total Rape Products
Extracted Sunflower
33-38% protein
Extracted Sunflower
27-30% protein
Combined Constraint
Total Sunflower Products
2
2
0
0
0
50
10
40
0 100 0
20 100 20
0 10 0
0 10 0
0 10 0
Age of Turkeys
Soya 48-50%
Full Fat Soya
Combined Constraint
Total Soya Products
Vegetable Proteins:
Cereals:
Maize
Wheat 1
Barley 1
Triticale
Sorghum 2
Age of Turkeys
Feeding recommendations_2208:Layout 2
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Feeding recommendations_2208:Layout 2
27/8/11
09:48
NU06 Version 1
Every attempt has been made to ensure the accuracy and relevance of the
information presented. However, Aviagen Turkeys accepts no liability for the
consequences of using the information for the management of turkeys.
For further information, please contact your local Aviagen Turkeys Manager.
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