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The meeting of individuals for sexual reproduction.



the coupling of agricultural animals, a means of natural insemination of dams by sires. Mating takes place when the female is in heat. Animals are allowed to mate for the first time when they reach sexual maturity: stallions and mares at the age of three years, bulls and cows at 15 to 18 months, rams and ewes at 12 to 18 months, and boars and sows at ten to 12 months. Animals of early-maturing breeds are mated somewhat earlier than those of late-maturing breeds.

There are several types of mating. Voluntary coupling takes place in herds in which the males and females are kept together at pasture or in pens. Selective mating takes place when males kept separately from the females are paired with certain designated females. This type of mating makes possible selection, increased breeding use of the sire, and the obtaining of offspring during specific periods of the year. In animal breeding, natural mating is replaced by artificial insemination, a more efficient method of insemination.

References in periodicals archive ?
Sampling information, size and results for mating behavior in both sexes and egg production in hybrid females.
Mating behavior was observed on both the first and last days of the Mating I and Mating 11 trials, establishing that experimental animals remained sexually active for the duration of the experiment.
Our study is the first report of courtship and mating behavior of the Chinese chive fly in detail.
albopilosus couple formation; we observed the stages that involved the mating behavior. From 40 couples formed, 29 couples did not mate and they kept moving around the soil, feeding or immersing into the soil.
However, from the results of this study, it appears that the sub-sterilizing dose of 200 Gy does not cause sufficient physiological damage to alter adult male mating behavior of E.
The seasonality of these apparent courting and mating behaviors in CIBW correspond with reported spring mating seasons for the Arctic populations (Burns and Seaman (6)) as well as captive belugas (Robeck et al., 2005).
Nutrition quality, body size and two components of mating behavior in Drosophila melanogaster.
The observation that 2 female Sage-Grouse mated multiple times in a single morning suggests that the mating behavior of lekking species is more complicated than previously reported.
Participants were informed that the purpose of the study was to evaluate mating behaviors. They were tested in a group setting and completed the following scales in about 40 minutes: Intimate Relationships Questionnaire, Machiavellian IV Scale, and the modified Relationship Strategies Questionnaire.
Experimental design: We used a full contact design in which focal males' mating behavior towards two types of females was videotaped by a 'Canon 3CCDF Digital Video Camcorder' and videos were used for a qualitative description of courtship displays (a sample tape is provided in the online supplement).
Within and between species variation in male mating behaviors in the Mexican sailfin mollies, Poecilia velifera and P.
Previous work has described general aspects of mating for the genus Hemigrapsus; however, there has been no explicit study of mating behavior in H.