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 ?
The number of female Bama miniature pigs which showed estrous reflex at different ages following SIF exposure were shown in Table 3.
Fertility assessment: The other fifteen female rats in 3 groups (n = 5) after 10 days of treatment and when they were in estrous phase, mated with untreated male rats.
During the 7 days following removal of the CIDR inserts, estrous behavior was observed in 21% (9/42) and 24% (14/58) of the CIDR-treated heifers, and 7% (3/42) and 15% (9/59) of the control heifers in year 1 and year 2, respectively.
Four weeks after transplantation, ovarian function was improved, as indicated by return of the estrous cycle, increased estradiol levels and follicle numbers, and decreased FSH levels.
The effect of extract on the estrous cycle, and offspring of males and females treated before mating and females treated during pregnancy are shown in Tables 1-4, respectively.
Biologists know the actual rut will last two to four weeks, while estrous does only last one to two days.
The aim of this study was to determine if Arg supplementation to control (C), overfed (O), and underfed (U) ewes impacts 1) body weight (BW) and body condition score (BCS), 2) P4 serum concentration and content in the CL, 3) CD31 (an endothelial cell marker), Ki67 (a proliferating cell marker), endothelial nitric oxide synthase (eNOS), and NO receptor soluble guanylate cyclase (sGC) protein and/or mRNA expression in the CL, and 4) mRNA expression of selected angiogenic factors in CL during the estrous cycle.
Then it's time to switch to the all-new Power Scrape Finisher, which is specially formulated with the original Power Scrape formula enhanced with Tink's #69 Doe-in-Rut estrous and buck secretions to mimic natural scrapes closer to the rutting season.
Males will fight viciously with each other for the rights to an estrous female.
In the porcine uterus, several LPA species are present in the luminal fluid, and the levels of some LPA species in the uterine luminal fluids are higher on d 12 of pregnancy than on d 12 of the estrous cycle (Seo et al.