Published Nov 12, 2019
Most U.S. Dairy Cows Come From 2 Bulls. That's Not Good.
Explore the genetic bottleneck crisis as NPR's Dan Charles reveals that nearly all U.S. dairy cows are descended from just two bulls, highlighting concerns about herd health and genetic diversity. Researchers at Penn State are tackling this issue with innovative experiments using heirloom bull semen, aiming to restore valuable genes in the face of economic challenges in the dairy industry.

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