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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 ?
Effects of LHRH on copulatory behavior and locomotor activity in sexually inexperienced male rats.
Under the scapus, there are sclerotized folds that form two pockets that cover the copulatory openings on both sides of the epigynum.
Male pedipalp morphology and copulatory mechanism in Pholcus phalangioides (Fuesslin, 1775) (Araneae, Pholcidae).
Using these measures the following parameters were computed: % mounted, % intromitted, % ejaculated, copulatory efficiency (Number intromissions/number of mounts + number intromission) and inter copulatory interval (Average time interval between intromissions).
Ageneral increase in all evaluated parameters of copulatory behavior was observed in treated animals in comparison with vehicle ones.
Using these measures, the following parameters were computed % mounted, % intromitted, % ejaculated, copulatory efficiency (number intromissions / number of mounts + number intromission) and inter copulatory interval.
2003 from the gills of Iheringidhthys labrosus in the following characteristics: similar accessory piece of the male copulatory organ, ventral and dorsal bars V-shaped, and accessory piece associated with half of the male copulatory organ.
Natural history and copulatory behavior of the spiny orbweaver spider Micrathena gracilis (Araneae, Araneidae).
Testosterone rapidly affects the expression of copulatory behavior in house mice (Mus Musculus).
This is known as the copulatory lock or tie (Figures 13-2 and 13-3).