El estrógeno es la hormona que hace que una novilla o vaca entre en celo.
Source: 2005 North Carolina Dairy Quiz Bowl Junior Division Questions www.cals.ncsu.edu/an_sci/extension/dairy/4-H/quizbowl/quizbowlquestions.htm
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¿Qué hormona hace que la novilla o la vaca entre en celo?
Last Updated: September 17, 2007
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