Heat stress affects the comfort of cattle more than does cold stress.
Milk production can be increased during hot weather by the use of sunshades, sprinklers, misters, and other methods of cooling as well as by dietary
alterations. Temperatures that are consistently higher than body temperature can cause heat
prostration of lactating cows, but additional energy intake (+1%/°C) and greater heat production by the cow
can compensate for lower temperatures, even extremely low ones.