Animal cloning pioneer Neal First dies at 84

Emeritus Professor Neal First, a pioneer in cattle reproduction and cloning who studied animal physiology at the University of Wisconsin-Madison for 45 years, died recently from complications of cancer. The research of Professor First, who died on November 20 at age 84, focused on sperm and oocyte maturation, in vitro production of embryos, cloning of cattle, and methods for producing transgenic embryos.

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