Nutrient Requirements of Pekin Ducks a
|
Energy base kcal ME/kg dietb |
Starting (0–2 wk) 2,900 |
Growing (2–7 wk) 3,000 |
Breeding 2,900 |
|
Protein (%) |
22 |
16 |
15 |
|
Arginine (%) |
1.1 |
1.0 |
— |
|
Lysine (%) |
0.9 |
0.65 |
0.6 |
|
Methionine + cystine (%) |
0.7 |
0.55 |
0.5 |
|
Calcium (%) |
0.65 |
0.6 |
2.75 |
|
Phosphorus, available (%) |
0.40 |
0.30 |
0.30 |
|
Sodium (%) |
0.15 |
0.15 |
0.15 |
|
Chlorine (%) |
0.12 |
0.12 |
0.12 |
|
Magnesium (mg) |
500 |
500 |
500 |
|
Manganese (mg) |
50 |
? |
? |
|
Zinc (mg) |
60 |
? |
? |
|
Selenium (mg) |
0.2 |
? |
? |
|
Vitamin A (IU) |
2,500 |
2,500 |
4,000 |
|
Vitamin D (IU) |
400 |
400 |
900 |
|
Vitamin K (mg) |
0.5 |
0.5 |
0.5 |
|
Riboflavin (mg) |
4 |
4 |
4 |
|
Pantothenic acid (mg) |
11 |
11 |
11 |
|
Niacin (mg) |
55 |
55 |
55 |
|
Pyridoxine (mg) |
2.5 |
2.5 |
3.0 |
|
a Requirements are listed as percentages or as units or mg/kg of diet. For nutrients not listed, see nutrient requirements of broilers ({blank} Nutrient Requirements of Broilers a) as a guide. |
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b These are typical dietary energy concentrations. |
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Adapted, with permission, from Nutrient Requirements of Poultry, 1994, National Academy of Sciences, National Academy Press, Washington, DC. |
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