Author: L.A. Lawrence, Extension Animal Scientist, Horses, Virginia Tech
Publication Number 406-473, July 1996
Table 4
Daily Nutrient Requirements for Growing Horses
Crude
Weigh Daily Gain DE* Protein Lysine Calcium Phosphorus
Animal (lb) (lb) (Mcal) (g) (g) (g) (g)
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Growing Horses
Weanling, 4 mo 319* 1.87 13.5 675 28 33 18
385** 1.87 14.4 720 30 34 19
440*** 2.20 16.5 825 35 40 22
Weanling, 6 mo
Moderate growth 396 1.21 12.9 643 27 25 14
473 1.43 15.0 750 32 29 16
539 1.65 17.0 850 36 34 19
Rapid growth 396 1.54 14.5 725 30 30 16
473 1.87 17.2 860 36 36 20
539 2.09 19.2 960 40 40 22
Yearling, 12 mo
Moderate growth 583 0.88 15.6 700 30 23 13
715 1.10 18.9 851 36 29 16
825 1.43 22.7 1023 43 36 20
Rapid growth 583 1.10 17.1 770 33 27 15
715 1.43 21.3 956 40 34 19
825 1.76 25.1 1127 48 41 22
Long yearling, 18 mo
Not in training 726 0.55 15.9 716 30 21 12
880 0.77 19.8 893 38 27 15
1045 0.99 23.9 1077 45 33 18
In training 726 0.55 21.6 970 41 29 16
880 0.77 26.5 1195 50 36 20
1045 0.99 32.0 1429 60 44 24
Two year old, 24 mo
Not in training 803 0.33 15.3 650 26 19 11
990 0.44 18.8 800 32 24 13
1188 0.66 23.5 998 40 31 17
In training 803 0.33 21.5 913 37 27 15
990 0.44 26.3 1117 45 34 19
1188 0.66 32.3 1372 55 43 24
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* Expected mature wt. 880 lb
** Expected mature wt. 1100 lb
*** Expected mature wt. 1320 lb
Return to the Table of Contents section of Nutrient Requirements and Balancing Rations for Horses.