Thứ Ba, 8 tháng 5, 2018

NPR News: How Prized Bull Semen And DNA Testing Are Reshaping America's Beef Herd

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How Prized Bull Semen And DNA Testing Are Reshaping America's Beef Herd
Cattle ranchers know that making the best steak starts with the genetic makeup of the herd. Now those genetics have taken a historic leap thanks to new, predictive DNA technology.

Đọc thêm tại NPR
at May 8, 2018 at 10:15PM
Health & Science
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