Holstein cattle at the UC Davis Dairy Facility. Chromosomes from a legendary bull born in 1962 account for almost 14 percent of the genome in the current Holstein population in the United States. A ...

Completing the top 10 are two exciting new entrants: Peak AltaSolace (PLI £683) shines with exceptional udder health (-32 SCC) and strong daughter fertility (+13), earning a HealthyCow of £231; and ...

HOLSTEIN sons of Val-Bisson Doorman, proved the star attraction at the Spring Dairy Bull show and sale at Carlisle, last week, siring the three highest priced lots and five of the top 10. Dearest at ...

Chad Dechow, a geneticist at Pennsylvania State University who studies dairy cows, is explaining how all of America's cows ended up so similar to each other. He brings up a website on his computer.

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Unlike most dairy cows in America, which are descended from just two bulls, this cow at Pennsylvania State University has a different ancestor: She is the daughter of a bull that lived decades ago, ...