What is the term that describes lower conception rates for sows in the summer due to heat stress?

The term that describes lower conception rates for sows in the summer due to heat stress is seasonality. This term specifically refers to variations in reproductive performance that are influenced by seasonal changes, such as temperature fluctuations. In swine, summer heat can significantly affect fertility by increasing stress levels, which may lead to hormonal imbalances, reduced estrus expression, and lower conception rates. Understanding seasonality is crucial for managing breeding programs and implementing strategies to mitigate the effects of heat stress, ensuring better reproductive outcomes. This context helps to grasp how seasonal factors can impact reproductive success in swine.