Assistant Laboratory Animal Technician (ALAT) Practice Exam 2026 - Free ALAT Practice Questions and Study Guide

Question: 1 / 575

What potential negative effects can occur if the daily light schedule for animals is altered?

Improved breeding efficiency

Reduced stress levels

Increased feeding activity

Stress and changes in physiology

Altering the daily light schedule for animals can lead to stress and physiological changes due to the disruption of their circadian rhythms. Animals are naturally attuned to regular light and dark cycles, which help regulate their biological processes, including sleep patterns, hormone release, and behavior. When this light schedule is changed, it can confuse the animals and lead to various forms of stress, such as anxiety and altered social interactions.

The physiological changes that might result from disrupted light cycles include modifications in hormone levels, metabolism, and reproductive cycles. For instance, many species rely on consistent photoperiods to regulate breeding behaviors, and any fluctuations can negatively impact their reproductive success. Thus, maintaining a stable light schedule is crucial to ensuring the welfare and health of laboratory animals.

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