"Bull Fertility Research Sheds Light on Male Infertility in Humans"

A study led by researchers at ETH Zurich used young bulls to investigate genes active in different reproductive tissues, discovering a large number of genes associated with fertility in bulls that are likely relevant to male fertility in humans. The findings could lead to better diagnostics for identifying genes and variants in breeding bulls, benefiting livestock breeders by minimizing financial losses from failed artificial inseminations. The research also sheds light on the importance of using suitable animal models for male fertility studies, as bulls provide a unique opportunity for comprehensive analysis compared to human subjects.