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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 ?
These findings are in line with the contention of evolutionary theorists who posit that reproductive strategies are at the heart of the mate selection process.
Scott (1991) looked at socio-demographic determinants and noted two complementary theories of mate selection preferences, exchange theory and marriage market theories.
Mate selection in a population of Sockeye Salmon (Oncorhynchus nerka) of mixed age-groups.
Accordingly, we posit three hypotheses that may explain these movements: (1) increased harassment by rutting males during tending, (2) movements associated with hunting pressure, (3) mate selection by females.
Well, I can tell you this, Norm--after being single for seven years, I am sure not basing mate selection on the lady's prowess with a dust rag.
According to a study published in American Naturalist by Ohio University researchers Andre Fernandez and Molly Morris, once primates began selecting red food, it drove the evolution of red skin and hair through sexual selection, which in turn affected ongoing mate selection.
In contrast, the Republican Jewish Coalition issued a very different response to McCain's running mate selection, saying that the choice demonstrated his good judgment and commitment to challenging politics as usual.
Key Words: Bactrocera dorsalis, polyandry, mate selection, pheromone
9) Two effects of these reforms especially influenced running mate selection.
There has been a great deal of research on mate selection and, by and large, men put a great emphasis on physical attractiveness.
This near obsession with mate selection and the above paradigm shifts indicate a culture that valued and emphasized companionate marriage both in fact and fiction.