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 ?
Variation in mate choice and mating preferences: a review of causes and consequences.
Previously, the UEA team had found that in a single mating, males exposed to male rivals prior to mating mated for significantly longer and produced more offspring than those held alone.
25 for single mate and multiple matings and single mate and single mating respectively).
The mating quirks of simultaneous hermaphrodites are attracting growing interest.
Determinants of paternity success in the spider Pholcus phalangoides (Pholcidae: Araneae): the role of male and female mating behaviour.
Mating effect on sex pheromone production of the Oriental tobacco budworm, Helicoverpa assulta.
When yeast cells decide to mate, they must know that there is a mating partner close enough, and then make a snap decision to get ready to mate", said first author and graduate student Mohan Malleshaiah.
Photo: (1) Robert Hoffman recoils at a description of the mating ritual of a double-whattled cassowary Saturday at the Los Angeles Zoo.
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To further confirm that IUM 99-3617 was MATa in mating type, MFa and STE 20a genes were sequenced by an ABI PRISM 310 automatic sequencer using Big Dye Terminator (Applied Biosystems, Monza, Italy) and the primers, forward and reverse strands previously reported (4).
The scientists tested two predictions of the mate-guarding hypothesis in sleepy lizards: that females should play a passive role in maintaining the pair bond, and that males should become more attentive as the time of mating draws near.