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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 ?
In Experiment 3, where matings were scored in non-competitive environments in the laboratory, males that were YH-deprived for 7 d before testing (and not provided with cue-lure) mated as frequently as control males that were continuously yeast hydrolysate-fed.
But they pay a high price - a shorter lifespan and reduced mating ability later in life.
Previous work has described general aspects of mating for the genus Hemigrapsus; however, there has been no explicit study of mating behavior in H.
There was no difference in the frequency of matings between inexperienced and experienced males, indicating that females did not discriminate between males on the basis of their experience.
For these controlled matings, broodstock animals were treated as previously described in Isolation and identification of broodstock, and initial experimental procedures were the same as in Multiple mating I.
With respect to mating success, body size is arguably the most prevalent measure of fitness documented in the literature.
MATE THIS Some of the mating habits of simultaneous hermaphrodites can be difficult for humans to understand.
Neither the proportion of eggs hatched nor the number of hatchlings significantly depended on the number of matings that a female experienced (number of matings vs.
dolus in (1) survivorship, (2) ability to locate and secure mates, (3) ability to acquire multiple matings, and (4) ability to sire offspring from multiple females.
1997), so that reared offspring can be assumed to provide unbiased information on their parents' matings.