Summarize the development of a calf fetus during gestation.

Fetal Development of the Beef Calf. One of the most rewarding days for many cow/calf producers is sale day ... At 24 hours the fetus is a 2-celled embryo; on day 1.5 it is 4-celled, and by day 3 it has reached 8 cells as it travels down the oviduct toward the uterus, entering it between days 5-6