The Holstein approach
Published May 11, 2020
Some folks want to bring back dinosaurs or woolly mammoths. But Penn State scientists are looking at something a bit more recent: Holstein cows. Holsteins are great milk producers, but they’re sorely lacking in generic diversity: “[M]ore than 99 percent of Holstein bulls born using [artificial insemination] in the last decade trace their male lineage to just two bulls born in the 1960s.”
The Netherland Prince, gone but not forgotten