Embryo Transfer That Works: Embryo Transfer As A Tool For Improving Fertility During Heat Stress

Increases in milk yield have made cows more susceptible to heat stress than they were 10 or 20 years ago. A high-producing cow starts to experience an increase in body temperature at air temperatures as low as 80EF or less. As a result, heat stress is a problem throughout most of the country, even in places as far north as Wisconsin and New York. Cows that are exposed to heat stress suffer decreased feed intake, reduced milk yield, poor expression of the signs of estrus, and infertility.