Table 1. Total Daily Water Intake (gallons) as Affected by Air Temperature and Feed Intake1
Temperature: 40°F 50°F 60°F 70°F 80°F 90°F
Gallons of water/lb drymatter (DM): 0.37 0.40 0.46 0.54 0.62 0.88
500-lb calf (12 lb DM) 4.4 4.8 5.5 6.5 7.4 10.6
750-lb preg. heifer (16.6 lb DM) 6.1 6.6 7.6 9.0 10.3 14.6
1,100-lb dry preg. cow (20 lb DM) 7.4 8.0 9.2 10.8 12.4 17.6
1,100-lb lactating cow (22 lb DM) 8.1 8.8 10.1 11.9 13.6 19.4
1Adapted from Winchester and Morris, 1956. Water intake rates of cattle. Journal of Animal Science 15:722