Sows and gilts | |||
| Nutrient | Gestation |
Lactation (1) |
Boars |
| Metabolizable energy, kcal | 1,400 |
1,400 |
1,400 |
| Protein, % | 14 |
14 |
14 |
| Lysine, % | 0.50 |
0.60 |
0.60 |
| Methionine + cystine, % | 0.32 |
0.36 |
0.36 |
| Tryptophan, % | 0.09 |
0.12 |
0.12 |
| Threonine, % | 0.35 |
0.44 |
0.44 |
| Calcium, % | 0.90 |
0.75 |
0.90 |
| Phosphorus, % | 0.75 |
0.60 |
0.75 |
| Salt, % (3) | 0.40 |
0.50 |
0.35 |
| Iron, mg | 36 |
36 |
36 |
| Copper, mg (4) | 2.70 |
2.70 |
2.70 |
| Manganese, mg | 14 |
14 |
14 |
| Zinc, mg | 30 |
30 |
30 |
| Iodine, mg | 0.10 |
0.10 |
0.10 |
| Selenium, mg | 0.136 |
0.136 |
0.136 |
| Vitamin A, IU | 3,000 |
3,000 |
3,000 |
| Vitamin D, IU | 300 |
300 |
250 |
| Vitamin E, IU | 12.5 |
12.5 |
12.5 |
| Vitamin K, mg | 1 |
1 |
1 |
| Riboflavin, mg | 2 |
2 |
2 |
| Niacin, mg | 12 |
12 |
12 |
| Pantothenic acid, mg | 10 |
10 |
10 |
| Choline, mg (5) | 400 |
400 |
400 |
| Vitamin B12, mcg | 10 |
10 |
10 |
| Biotin, mg | 0.06 |
0.06 |
0.06 |
| Folic acid, mg | 0.45 |
0.45 |
0.45 |
| Feed required, lb | 4 |
12 |
5 |
(1) The nutrient requirement of lactating sows increases
as feed intake decreases. The nutrient content should be increased 8.3 percent
for each pound below 12. (If sows will only consume 10 pounds per day, the
levels of required nutrients should be increased 16.6 percent.)