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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 ?
Under the scapus, there are sclerotized folds that form two pockets that cover the copulatory openings on both sides of the epigynum.
c, Progesterone 5 hrs before copulatory test on 0, 15th, 30th & 60th day for sexual dysfunction analysis.
Broken copulatory organs are low-cost adaptations to sperm competition in redback spiders.
In general, conditioning of copulatory responses, in the form of direct sexual contact with the CS appears to be rare.
Sperm depletion by males could affect both male and female copulatory strategies.
The clot or coagulum that forms at ejaculation in response to enzymes from the seminal vesicles parallels the copulatory plug found in many animal species to prevent loss of semen from the vagina.
The rooster's copulatory organ makes contact with the hen's distended orifice of the oviduct located on the left side of the cloaca.
Whilst the positively valued attributes of women infuse much of the symbolism of cults that focus on the celebration of fertility and reproductivity, the negative destructive attributes find expression primarily in the proliferation of menstrual, copulatory and at times sorcery/witchcraft fears and taboos.
It has been suggested that excavation could play a vital role in reproduction by stimulating ovulation (Bowes and Allen 1969), as a pair of Resplendent Quetzals were observed excavating a hole in a rotten tree as part of a copulatory behavior (Wheelwright 1983), but the importance of excavation on reproduction has never been tested.
22; copulatory openings hidden beneath sclerotized recurved ridges; accessory glands lead into seminal ducts; receptacles two-chambered, first chamber almost spherical (Fig.
CO = copulatory opening; DS = dorsal scutum; ES = epigastric sclerite; IS = inframamillary sclerite).