Tips to keep livestock and pets healthy during summer heat Hydrate, hydrate, hydrate6 May 2024 6 May 2024 5 minute read 5 minute read By: By: Oklahoma State University North AmericaSummertime usually means high temperatures. Livestock and horsesLivestock can also experience heat stress during hot weather, particularly if the heat is prolonged or temperatures are extremely high. Cattle, sheep, goats and horses can regulate body temperature to some extent by sweating, but pigs lack this ability. In hot weather, air flow can increase animal comfort by increasing the amount of body heat lost by convection. Sheep, hair goats (ex: Angora), llamas and alpacas can also be affected by heat stress.