Will Twin Calves Be Sterile?

Research indicates approximately half of the sets of twins should contain both a bull and a heifer calf. ... “Although the male twin in this case is rarely affected by reduced fertility, the female twin is completely infertile in more than 90% of cases,” Selk says.

Will twin heifer calves breed?

When a heifer twin shares the uterus with a bull fetus, they also share the placental membranes connecting the fetuses with the dam. ... It also means in these instances, the heifer calf will be sterile. Now, not all sets of bull/heifer twins will result in a freemartin, however it is the case 92% of the time.

Can a cow be pregnant with two calves?

– The goal of every cattle birth is a live, healthy calf, but every so often ranchers find a surprise: a second calf. ... “It is estimated that about 2% of beef cattle pregnancies result in twins,” said veterinarian Bob Larson.