The ideal Renaissance man. An aspect of court life was the idea that the ideal Renaissance man should be widely accomplished. This is reflected in Measure for Measure when, the Duke describes himself as âa scholar, a statesman and a soldier'. The courtier's, soldier's, scholars' eye, tongue, sword!
Estrus is defined as the period where a female (in this case, a cow or heifer) is receptive to a male (or, the bull). Estrous, on the other hand, is the whole reproductive heat cycle that a female goes through, from heat period to no heat period (Proestrus, Estrus, Metestrus, and Diestrus).
Stages. The estrous cycle can be divided into four stages: proestrus, estrus, metestrus, and diestrus. During proestrus the CL regresses (progesterone declines) and a preovulatory follicle undergoes its final growth phase (estradiol increases). Ovulation usually occurs during estrus (cows ovulate during metestrus).