Recommended Nutrient Concentrations in Rations a for Horses and Ponies
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--------------------Example Diet Proportions--------------------- |
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Hay Containing 2.0 Mcal DE/kgb |
Hay Containing 1.8 Mcal DE/kgc |
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Digestible Energy (Mcal/kg) |
Crude Protein (%) |
Ca (%) |
P (%) |
Vitamin A (IU/kg)d |
Concentrate (%)e |
Roughage (%) |
Concentrate (%)e |
Roughage (%) |
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Mature horses and ponies, maintenance |
1.80 |
7.2 |
0.21 |
0.15 |
1,650 |
0 |
100 |
0 |
100 |
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Mares, last 90 days of gestation |
2.15 |
9.5 |
0.41 |
0.31 |
3,280 |
20B |
80 |
25A |
75 |
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Lactating mares, first 3 mo |
2.35 |
12.0 |
0.47 |
0.30 |
2,480 |
40A |
60 |
50A |
50 |
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Lactating mares, 3 mo to weaning |
2.20 |
10.0 |
0.33 |
0.20 |
2,720 |
30B |
70 |
40A |
60 |
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Stallions, breeding season |
2.15 |
8.6 |
0.26 |
0.19 |
2,370 |
25A |
75 |
30A |
70 |
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Creep fed |
2.80 |
16.0 |
0.65 |
0.35 |
1,800 |
70A |
30 |
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Foal (3 mo old) |
2.70 |
14.0 |
0.65 |
0.35 |
1,500 |
50A |
50 |
70A |
30 |
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Weanling (6 mo old) |
2.60 |
13.1 |
0.55 |
0.30 |
1,680 |
50A |
50 |
60A |
40 |
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Yearling (12 mo old) |
2.50 |
11.3 |
0.40 |
0.22 |
1,950 |
40B |
60 |
50A |
50 |
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Long yearling (18 mo old) |
2.35 |
10.4 |
0.32 |
0.18 |
2,050 |
30B |
70 |
40B |
60 |
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2-yr-old (light training) |
2.40 |
10.1 |
0.31 |
0.17 |
2,380 |
40B |
60 |
50B |
50 |
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Mature working horses |
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Light workf |
2.20 |
8.8 |
0.27 |
0.19 |
2,420 |
0–25B |
75 |
25B |
75 |
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Moderate workg |
2.40 |
9.4 |
0.28 |
0.22 |
2,140 |
40B |
60 |
50B |
50 |
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Intense workh |
2.55 |
10.3 |
0.31 |
0.23 |
1,760 |
50B |
50 |
60B |
40 |
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a 90% dry matter |
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b Good quality legume-grass hay; DE = digestible energy |
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c Grass hay |
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d One mg of β-carotene equals 400 IU of vitamin A for the horse. |
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e Concentrate containing 3.2 Mcal DE/kg; A or B refers to suitable concentrates (see Table: Concentrates Satisfactory for Use with Hays as Indicated in {blank} Recommended Nutrient Concentrations in Rations a for Horses and Ponies). |
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f Western pleasure, bridle path hack, equitation |
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g Ranch work, roping, cutting, barrel racing, jumping |
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h Race training, polo |
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Adapted, with permission, from Nutrient Requirements of Horses, 1989, National Academy of Sciences, National Academy Press, Washington, DC. |
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