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Study finds Catalina Island Conservancy contraception program effectively manages bison population

A new study by the Catalina Island Conservancy scientists, published in the December supplement of the Journal of Zoo and Wildlife Medicine, reports that the Conservancy’s contraception program proved effective in managing the herd’s numbers. Previously, more than two-thirds of the cows delivered calves every year. After receiving the contraceptive, the calving rate dropped to 10.4 percent in the first year and 3.3 percent the following year.

Fuente : http://www.eurekalert.org/pub_releases/2013-12/sci…

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