During which phase do female cattle exhibit signs of heat?

Female cattle exhibit signs of heat during the estrous phase. This phase, also known as the estrus or heat period, is characterized by specific behavioral and physical changes that indicate the female is ready to breed. These signs can include more vocalization, increased restlessness, a willingness to stand for mounting, and changes in vaginal discharge.

Understanding the estrous cycle is vital for effective breeding management in cattle. The cycle typically lasts about 21 days, with the estrous phase occurring for a short period, usually around 12 to 18 hours, during which the female is receptive to mating. Recognizing these signs helps producers optimize breeding times, leading to improved reproductive efficiency and herd productivity.

The other phases mentioned, such as gestation, reproductive, and fertility, do not specifically pertain to the signs of heat; rather, they describe other aspects of the female bovine’s reproductive lifecycle.