estrous


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es·trous

(es'trŭs),
Pertaining to estrus.
Synonym(s): estrual

estrous

(ĕs′trəs)
adj.
Of, relating to, or being in estrus.

es·trous

(es'trŭs)
Pertaining to estrus.
Synonym(s): estrual.

estrous

pertaining to or emanating from estrus.

estrous cycle
one of the two types of reproductive cycles, the other is the menstrual cycle of humans and primates. Regularly occurring periods during which the female is sexually active and receptive, estrus, separated by periods in which there is no sexual receptivity. This period is divided, on the basis of ovarian activity into metestrus (early corpus luteum development), diestrus (mature corpus luteum) and pro-estrus (period of follicle development). The details of estral activity are summarized in Table 17.
References in periodicals archive ?
The exact day that the pigs contained in each treatment showed standing estrous reflex was defined as the first day of estrus.
Hormonal assay: At the end of the experiment, while the animals in the 3 groups (8 in each) were in the estrous phase, they were anesthetized using diethyl ether and a blood sample was taken from dorsal aorta.
The E2 concentration decreases during the rat estrous cycle and is maintained at a relatively lower level during the estrus phase than in the other phases (i.
This difference in pregnancy rates may be explained by a change in the progesterone-to-estrogen ratio between the first and third estrous cycles, resolving the early unfavorable uterine environment caused by higher progesterone and lower estrogen concentrations in the pubertal estrus (Byerley, Berardinelli, et al.
Follow up of all rats was carried out by daily vaginal smear at 10:00-11:00AM after completion of CTX injections and for eight weeks following the intervention to check for the number of normal estrous cycles.
Amador and her colleagues found that the animals' responses differed depending on what phase of the estrous cycle they were in.
The phases of the cycle (proestrous, estrous, metaestrous and diestrous) were identified by the observation of the desquamation cells form.
The timing of the vocalization in relation to estrous is also worth considering.
Counts begin to increase about four months after freshening and with the onset of estrous cycles.
SNBL USA will be accessing every module of the integrated Provantis solution suite, including Instem's Dispense[TM] solution for test item control and its latest Data Import module, enabling SNBL USA to seamlessly pull a broad range of external information into Provantis such as Estrous Cycle and Bone Assessment data.
Biologists know the rut is the only time of year when a buck will become territorial, as he defends an estrous doe from other bucks.
During the estrous cycle, the CL undergoes rapid changes including vascular development and regression, and tissue growth and regression.