Heat stress in gestating cows weakens future generations

A recent study investigated the performance and profitability of 2 future generations of cows born to mothers exposed to heat stress during pregnancy. The results show that maternal hyperthermia during late gestation impairs performance of the offspring across multiple generations and lactations. Heat stress has a significant effect on dairy cows and negatively impacts milk and reproductive performance and can lead to illness and shortened lifespans. In the US, this equates to losses of about U