estrus


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estrus

 [es´trus]
the recurrent, restricted period of sexual receptivity in female mammals other than human females, marked by intense sexual urge. See also estrous cycle. Called also estruation, estrum, and heat. adj., adj es´trual, es´trous.

es·trus

(es'trŭs),
That portion or phase of the sexual cycle of female animals characterized by willingness to permit coitus; readily detectable behavioral and other signs are exhibited by animals during this period.
Synonym(s): heat (3)
[G. oistros, mad desire]

estrus

also

oestrus

(ĕs′trəs)
n.
The periodic state of sexual excitement in the female of most mammals, excluding humans, that immediately precedes ovulation and during which the female is most receptive to mating; heat.

es·trus

(es'trŭs)
That portion or phase of the sexual cycle of female animals characterized by willingness to permit coitus; readily detectable behavioral and other signs are exhibited by animals during this period.
Synonym(s): estruation, heat (2) , oestrus.
[G. oistros, mad desire]
References in periodicals archive ?
Knowledge of estrus behavior is essential for estimating the best time to artificially inseminate, as the understanding of the factors involved in the expression of estrus and occurrence of ovulation is an obstacle limiting the success of artificial insemination (Galina et al., 1996).
Angora goats and Mossi goats were known to have a short estrus lasting only 22 h and 20 h, respectively (McGregor, 2018; Montaldo et al., 2010).
Because of a high degree of variation that exists between the estrus onset and ovulation, it is necessary to use hormones that induce ovulation resulting in a successful FTAI.
The proportion of each type of vaginal epithelial cell of ewes, during the estrus manifestation, is shown in Table 1.
"If there are no does in estrus yet, every buck in the country will be checking all of the doe groups out, and all of the doe groups are generally hitting the food plots," Don said.
Fertility trial in Zebu cattle after a natural or controlled estrus with prostaglandin F2 alpha, comparing natural mating with artificial insemination.
days to estrus, days to 1st service, service period, first service conception rate (FSCR), overall conception rate, 120 days in-calf rate and calving to conception interval were recorded.
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.
They were found in proestrus, estrus or metestrus and were considered as reproductive females since there is hormonal stimulation for each phase and a clear indication that they are sexually receptive.
For whatever reason, orphaned female fawns tend to come into estrus earlier than non-orphaned fawns, so areas where does have been heavily hunted can provide better than average chances for experiencing a second rut.