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Oestrus

usgb/ˈestrəs/Volume
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Behavioral ChangesPlay
Watch for behavioral clues such as restlessness or vocalization that signal a female animal is in oestrus. SlideThe mare became more restless, indicating she was in oestrus.
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Physical SignsPlay
Physical changes, like swelling or scent marking, can accompany oestrus in animals. SlideThe swelling of her vulva was a clear sign of oestrus.
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Zoo ContextPlay
In zoos, knowledge of oestrus helps keepers manage breeding and animal welfare. SlideKeepers timed the introduction of the male to coincide with the female's oestrus.