Assistant Laboratory Animal Technician (ALAT) Practice Exam

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Prepare for the ALAT Exam with flashcards and multiple choice questions with hints and detailed explanations. Boost your readiness and confidence!

Practice this question and more.

The female rat's estrous cycle lasts about how many days?

2-3 days
4-5 days
6-7 days
8-9 days

The correct answer is: 4-5 days

The female rat's estrous cycle typically lasts about 4 to 5 days. This cycle consists of several phases: proestrus, estrus, metestrus, and diestrus. Each phase has specific hormonal and physiological changes that prepare the rat for potential mating and reproduction. The duration of the estrous cycle is important in laboratory settings for breeding programs and when planning studies that involve timing of hormonal changes or behavior related to reproduction. Understanding this cycle helps researchers optimize breeding schedules and ensure the healthy management of breeding colonies.