Energy Requirements for Maintenance of Mature Beef Cows
Weight of Cow | |||||
|---|---|---|---|---|---|
1,000 lb (454 kg) | 1,200 lb (544 kg) | 1,400 lb (635 kg) | 1,600 lb (726 kg) | 1,800 lb (816 kg) | |
Number of Months Since Calving | Energy Requirementa,b , in Mcal of NEm per cow per day | ||||
1 | 10.7 | 11.8 | 12.9 | 14.0 | 15.0 |
2 | 13.3 | 14.5 | 15.5 | 16.6 | 17.6 |
3 | 13.5 | 14.7 | 15.8 | 16.8 | 17.8 |
4 | 12.8 | 13.9 | 15.0 | 16.1 | 17.1 |
5 | 11.8 | 12.9 | 14.0 | 15.1 | 16.1 |
6 | 10.9 | 12.0 | 13.1 | 14.2 | 15.2 |
7 | 10.2 | 11.4 | 12.5 | 13.5 | 14.5 |
8 | 8.3 | 9.5 | 10.5 | 11.6 | 12.6 |
9 | 8.8 | 9.9 | 11.0 | 12.1 | 13.1 |
10 | 9.5 | 10.7 | 11.8 | 12.8 | 13.8 |
11 | 10.7 | 11.8 | 12.9 | 14.0 | 15.0 |
12 | 12.4 | 13.5 | 14.6 | 15.7 | 16.7 |
aTotal megacalories (Mcal) net energy for maintenance per animal per day. bValues adapted from the National Academies of Sciences, Engineering, and Medicine. Nutrient Requirements of Beef Cattle. 8th rev. ed. National Academies Press; 2016. | |||||
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