Estrus refers to which phenomenon in cattle?

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Study for the ELANCO Advanced Animal Science Exam. Enhance your knowledge with flashcards and multiple choice questions, with hints and explanations for each question. Get ready for your exam!

Multiple Choice

Estrus refers to which phenomenon in cattle?

Explanation:
Estrus is the heat period—the phase when a cow is sexually receptive to a bull. During this time she stands to be mounted and shows signs of readiness to mate, which is why breeders time insemination to this window. Ovulation happens after estrus, so the fertilization window centers on this receptive phase. Gestation refers to pregnancy, lactation to milk production, and ovulation is the release of the egg from the ovary (not the receptivity itself). Understanding that estrus equals the receptive, heat phase clarifies why this option is the correct match.

Estrus is the heat period—the phase when a cow is sexually receptive to a bull. During this time she stands to be mounted and shows signs of readiness to mate, which is why breeders time insemination to this window. Ovulation happens after estrus, so the fertilization window centers on this receptive phase. Gestation refers to pregnancy, lactation to milk production, and ovulation is the release of the egg from the ovary (not the receptivity itself). Understanding that estrus equals the receptive, heat phase clarifies why this option is the correct match.

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