oestrus

(redirected from Estrum)
Also found in: Dictionary, Thesaurus, Medical.

oestrus

(US), estrus, estrum
a regularly occurring period of sexual receptivity in most female mammals, except humans, during which ovulation occurs and copulation can take place; heat
References in periodicals archive ?
Morphometric analysis: At the end of the experiment, the female rats that presented the estrum phase, were anesthetized, the ovary collected, cleavaged and fixed in Bouin, for 48hrs.
2005) reported that 75 percent of cows were negative for white side test during subsequent estrum after treatment with immunomodulators such as LPS and autologus plasma wheres as Sarma et al.
Colpocytological examination revealed that the animals of group II presented a greater incidence of estrum phase, with a percentile of 60%, comparing to other experimental groups.