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 ?
dorsalis, pair wise comparisons between the number of matings observed for treated and control males were made by the Mann-Whitney test, where [n.
Variation in male mating success is often related to rank differences.
Males higher up the pecking order find it easier to secure matings with the females, but they transfer fewer sperm to females.
Melbourne, May 15 (ANI): Female tit birds are known for mating with rival males before their social partner, for giving genetic advantage to their chicks.
Consistent with previous work, virgin females showed a significant preference for ME-fed males, selecting them in 70% (35/50) of the total matings (Z = 2.
Refractory periods between subsequent matings of females vary from 1 day to several weeks (Tychsen & Fletcher 1971; Prokopy & Roitberg 1984; Kuba & Soemori 1988; Landolt 1994; Aluja et al.
Prof Chapman said: "We exposed males to rivals throughout their lifetimes and found that while this caused them to mate for longer and have a higher reproductive output - these benefits disappeared early, after the third mating.
If she assumes a cooperative posture, he approximates a mating position too.
Previous work has described general aspects of mating for the genus Hemigrapsus; however, there has been no explicit study of mating behavior in H.
No individuals were used in observations more than once, and once used, individuals were put together in a large holding cage where their mating behaviors were recorded approximately every twelve hours.
Matings were staged by placing a male near a support thread of the females' orb-web.