oestrus

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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 ?
Estrous behavior, ovulatory follicle dynamics, and corpus luteum size in Creole cows after spontaneous or prostaglandin F2[alpha]-induced estrous.
The reproductive tracts of gilts were obtained immediately after slaughter at a local slaughterhouse on either days 0, 3, 6, 9, 12, 15, or 18 of the estrous cycle or days 12, 15, 30, 60, 90, or 114 of pregnancy (n = 3-6/d/status).
The staining of vaginal smears with Panotico or Giemsa has been reported as a way to identify the different phases of the estrous cycle in ewes (Porto et al., 2007; Zohara et al., 2014).
Determination of estrus cycle stage: Since menstrual disturbance is a typical clinical feature of PCOS women, estrous cycles were examined in all groups of mice by evaluating the cell types in vaginal smears.
In addition, OVX animals treated with different doses of TMX were stable at the estrus phase of the estrous cycle.
There was only one estrous HD female in the test, which complicated the statistical analysis of the estrous cycle.
Vaginal smears from 70 days of age show that taiep rats have irregular estrous cycles when compared to SD rats (Figure 6).
Separately, an effect of age on estrous repetition was observed (P<0.001), since that problems was more common (odds ratio: 1.84; 95% CI: 1.04 to 3.25) in animals older than 6 years (42.3%) when compared to animals with 1-3 years old (27.9%).
Reproductive condition was established only in adult females by observing external morphological characteristics such as nipples development and the state of the vagina (closed, open or vaginal plug), and the analysis of samples of vaginal swabs for determining the phases of the estrous cycle.
Starting the Ovsynch protocol on 6th day of estrous cycle improves pregnancy rates compared with use of Ovsynch protocol on random stages of estrous cycle due to greater ovulatory response to first GnRH treatment and because of ovulatory follicle coming from the new wave of follicular development induced by first GnRH treatment of Ovsynch protocol.