EPA approves horse contraceptive February 17, 2012 Wyoming

Wyoming Urban Deer Management News Archive

EPA approves horse contraceptive February 17, 2012 Wyoming, Casper Star-Tribune Online

Dr. Jay F. Kirkpatrick believes the key to wildlife population control isn't in culling out the existing population but in addressing its reproduction.  "If you remove them -- if that's your major management approach _ you're not addressing the problem, you're addressing the symptom," he said. "If you attack reproduction, you get to the source of the problem." ... porcine zona pellucida (PZP), the active ingredient in a contraceptive vaccine approved on Thursday by the Environmental Protection Agency for use in horses. 

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