----------------------------Daily Nutrients Per Animala--------------------------- | |||||||
---|---|---|---|---|---|---|---|
Age (months) | Body Weight (kg) | Daily Gain (kg) | Digestible Energy (Mcal) | Crude Protein (g) | Ca (g) | P (g) | Vitamin Ab (IU) |
Estimated adult weight 200 kg (ponies) | |||||||
4 | 67 | 0.34 | 5.3 | 268 | 15.6 | 8.7 | 3,000 |
6 | 86 | 0.29 | 6.2 | 270 | 15.5 | 8.6 | 3,900 |
12 | 128 | 0.18 | 7.5 | 338 | 15.1 | 8.4 | 5,800 |
18 | 155 | 0.11 | 7.7 | 320 | 14.8 | 8.2 | 7,000 |
24 | 172 | 0.07 | 7.5 | 308 | 14.7 | 8.1 | 7,700 |
Estimated adult weight 500 kg (average horses) | |||||||
4 | 168 | 0.84 | 13.3 | 669 | 39.1 | 21.7 | 7,600 |
6 | 216 | 0.72 | 15.5 | 676 | 38.6 | 21.5 | 9,700 |
12 | 321 | 0.45 | 18.8 | 846 | 37.7 | 20.9 | 14,500 |
18 | 387 | 0.29 | 19.2 | 799 | 37.0 | 20.6 | 17,400 |
24 | 365 | 0.18 | 18.7 | 770 | 36.7 | 20.4 | 19,300 |
Estimated adult weight 900 kg (draft horses)c | |||||||
4 | 303 | 1.52 | 23.9 | 1,204 | 70.3 | 39.1 | 13,600 |
6 | 389 | 1.30 | 28.0 | 1,217 | 69.5 | 38.7 | 17,500 |
12 | 578 | 0.82 | 33.8 | 1,522 | 67.8 | 37.7 | 26,000 |
18 | 697 | 0.51 | 34.6 | 1,438 | 66.7 | 37.1 | 31,400 |
24 | 773 | 0.324 | 39.2 | 1,492 | 66.0 | 36.7 | 34,800 |
a Assumes good-quality forage with or without additional concentrates. Maximal daily intake is estimated to be 2.5%–3% body weight in dry matter. | |||||||
b One mg of beta-carotene is equivalent to 400 IU of the active form of vitamin A for the horse. cBased on more recent studies of draft cross horses, these recommendations may be higher than needed. | |||||||
Adapted from Nutrient Requirements of Horses, 2007, National Academy of Sciences, National Academy Press, Washington, DC. |