Free Livestock Water Requirement calculator with clear step-by-step results.
Water intake varies more than tenfold between a laying hen and a lactating dairy cow, and rises roughly 3% for every degree above 20 C. The peak supply figure matters because stock drink in bursts after milking or feeding, so a trough must refill far faster than the daily average implies.
Daily requirement
Litres = head x base litres per head x (1 + 0.03 x (temp - 20) above 20 C)
Peak supply rate
L/min = daily total / (8 hours x 60)
Minimum water provision for farmed animals is a legal welfare requirement in most jurisdictions. Verify against the applicable code, and ensure supply is continuous and palatable rather than merely adequate on paper.
Substantially. Dry rations raise intake while lush grazing at high moisture content can supply a large part of the requirement, so dry-lot stock need more than the base figure.
It covers a pump failure or a supply interruption. Water is the one input stock cannot go without for even a day, particularly in heat.