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 ?
In order to deal with these problems, motion recognition for a practical estrus detection system needs to be more robust to dynamic complex scenes while keeping computational complexity low.
In protocols based on the day of weaning, differences in the time of hormonal application after weaning and in estrus detection are observed in the protocols using triptorelin or buserelin.
* evaluate the sensor's estrus detection ability compared to conventional methods.
The main criterion for estrus detection was acceptance of mounting by other cows, and the first detection of this behavior was considered the time of onset of standing estrus.
Singleton, "Estrus Detection in Farm Animals," 2003.
Estrus detection and artificial insemination: Estrus was detected twice daily at 06:00 and 18:00 h.
Estrus detection using radiotelemetry or visual observation and tail painting for dairy cows on pasture.
A survey conducted on the rural small holder dairy farms of Punjab revealed the lack of farmer's awareness about accurate and efficient estrus detection procedures (Ghuman and Singh, 2009).
Reasons for repeat breeding are multi factorial and include estrus detection errors, inflammation or anatomical impediments in the female reproductive tract and embryonic mortality (Pursley et al., 1998; Villarroel et al., 2004).
Based on the results of continuous observation, Figure 4 and 5 depict the findings to assess the precision of estrus detection, if the observation for estrus was to be carried out during the three periods established.