Mating

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mating

[′mād·iŋ]
(biology)
The meeting of individuals for sexual reproduction.

Mating

 

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 ?
truncatum are driven by recognition failure during male mate recognition learning process.
Visual cues in mate recognition by males of the damselfly, Coenagrion puella (L.
Lande (1982) and West-Eberhard (1983) suggested that the rapid and arbitrary divergence of mate recognition signals under sexual selection could promote behavioral isolation among populations and, ultimately, the formation of new species (see Young et al.
In previous studies, we have examined in detail how variation in mate recognition signals within a population influences female mating preferences that generate sexual selection in the tungara frog, Physalaemus pustulosus (e.
Sex pheromones are usually involved in asymmetric mate recognition.
Two types of sex pheromones are involved in mate recognition of some Lysmata species (e.
It is likely that pair-living Lysmata ancestors may depend on contact sex pheromones alone for mate recognition.
Female choice, mate recognition, mating preferences, Physaelaemuspustulosus, sexual selection, species recognition.
For example, some researchers have contended that sexual selection is unlikely to be an important force in signal evolution because species recognition would generate strong stabilizing selection on mate recognition systems, suggesting that if there is species recognition there can not be sexual selection (Templeton, 1979; Gerhardt, 1982; Paterson, 1985).