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TABLE 1 Daily Nutrient Requirements of Sheep Body Weight Weight Change/Day Dry Matter per Animala Nutrients per Animal Energyb Crude protein Ca (g) P (g) Vitamin A Activity (IU) Vitamin E Activity (IU)               TDN DE (Mcal) ME (Mcal) (kg) (lb) (g) (lb) (kg) (lb) (% body weight) (kg) (lb) (g) (lb) Ewesc Maintenance 50 110 10 0.02 1.0 2.2 2.0 0.55 1.2 2.4 2.0 95 0.21 2.0 1.8 2,350 15 60 132 10 0.02 1.1 2.4 1.8 0.61 1.3 2.7 2.2 104 0.23 2.3 2.1 2,820 16 70 154 10 0.02 1.2 2.6 1.7 0.66 1.5 2.9 2.4 113 0.25 2.5 2.4 3,290 18 80 176 10 0.02 1.3 2.9 1.6 0.72 1.6 3.2 2.6 122 0.27 2.7 2.8 3,760 20 90 198 10 0.02 1.4 3.1 1.5 0.78 1.7 3.4 2.8 131 0.29 2.9 3.1 4,230 21 Flushing—2 Weeks prebreeding and first 3 weeks of breeding 50 110 100 0.22 1.6 3.5 3.2 0.94 2.1 4.1 3.4 150 0.33 5.3 2.6 2,350 24 60 132 100 0.22 1.7 3.7 2.8 1.00 2.2 4.4 3.6 157 0.34 5.5 2.9 2,820 26 70 154 100 0.22 1.8 4.0 2.6 1.06 2.3 4.7 3.8 164 0.36 5.7 3.2 3,290 27 80 176 100 0.22 1.9 4.2 2.4 1.12 2.5 4.9 4.0 171 0.38 5.9 3.6 3,760 28 90 198 100 0.22 2.0 4.4 2.2 1.18 2.6 5.1 4.2 177 0.39 6.1 3.9 4,230 30 Nonlactating—First 15 weeks gestation 50 110 30 0.07 1.2 2.6 2.4 0.67 1.5 3.0 2.4 112 0.25 2.9 2.1 2,350 18 60 132 30 0.07 1.3 2.9 2.2 0.72 1.6 3.2 2.6 121 0.27 3.2 2.5 2,820 20 70 154 30 0.07 1.4 3.1 2.0 0.77 1.7 3.4 2.8 130 0.29 3.5 2.9 3,290 21 80 176 30 0.07 1.5 3.3 1.9 0.82 1.8 3.6 3.0 139 0.31 3.8 3.3 3,760 22 90 198 30 0.07 1.6 3.5 1.8 0.87 1.9 3.8 3.2 148 0.33 4.1 3.6 4,230 24 Last 4 week gestation (130-150% lambing rate expected) or last 4-6 weeks lactation suckling singlesd 50 110 180 (45) 0.40 (0.10) 1.6 3.5 3.2 0.94 2.1 4.1 3.4 175 0.38 5.9 4.8 4,250 24 60 132 180 (45) 0.40 (0.10) 1.7 3.7 2.8 1.00 2.2 4.4 3.6 184 0.40 6.0 5.2 5,100 26 70 154 180 (45) 0.40 (0.10) 1.8 4.0 2.6 1.06 2.3 4.7 3.8 193 0.42 6.2 5.6 5,950 27 80 176 180 (45) 0.40 (0.10) 1.9 4.2 2.4 1.12 2.4 4.9 4.0 202 0.44 6.3 6.1 6,800 28 90 198 180 (45) 0.40 (0.10) 2.0 4.4 2.2 1.18 2.5 5.1 4.2 212 0.47 6.4 6.5 7,650 30 Last 4 weeks gestation (180-225% lambing rate expected) 50 110 225 0.50 1.7 3.7 3.4 1.10 2.4 4.8 4.0 196 0.43 6.2 3.4 4,250 26 60 132 225 0.50 1.8 4.0 3.0 1.17 2.6 5.1 4.2 205 0.45 6.9 4.0 5,100 27 70 154 225 0.50 1.9 4.2 2.7 1.24 2.8 5.4 4.4 214 0.47 7.6 4.5 5,950 28 80 176 225 0.50 2.0 4.4 2.5 1.30 2.9 5.7 4.7 223 0.49 8.3 5.1 6,800 30 90 198 225 0.50 2.1 4.6 2.3 1.37 3.0 6.0 5.0 232 0.51 8.9 5.7 7,650 32 First 6-8 weeks lactation suckling singles or last 4-6 weeks lactation suckling twinsd 50 110 - 25 (90) - 0.06 (0.20) 2.1 4.6 4.2 1.36 3.0 6.0 4.9 304 0.67 8.9 6.1 4,250 32 60 132 - 25 (90) - 0.06 (0.20) 2.3 5.1 3.8 1.50 3.3 6.6 5.4 319 0.70 9.1 6.6 5,100 34 70 154 - 25 (90) - 0.06 (0.20) 2.5 5.5 3.6 1.63 3.6 7.2 5.9 334 0.73 9.3 7.0 5,950 38 80 176 - 25 (90) - 0.06 (0.20) 2.6 5.7 3.2 1.69 3.7 7.4 6.1 344 0.76 9.5 7.4 6,800 39 90 198 - 25 (90) - 0.06 (0.20) 2.7 5.9 3.0 1.75 3.8 7.6 6.3 353 0.78 9.6 7.8 7,650 40

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