I was in a shed this week where three of the four drinkers were full of dung.
Animal intakes can be severely reduced during the housing period where a plentiful supply of clean water is not provided. It is good practice to check drinkers first thing every morning.
A 500kg bull eating ad-lib meal could drink up to 40 litres/day, so a good supply in a large enough drinker is essential.
Beef management: how to stretch fodder supplies