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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 ?
The highest percentage of successful mating of 93.36.6 with a mean mating duration of 83.47.4 sec.
Among, the three selected ranges of wind velocities, mating was only actively observed in BPH at 0.0-1.0 m/sec, at a successful mating percentage of 80.010.0 and a mean mating duration of 72.611.4 sec.
Often, aged female of nine days old showed less interest in long mating duration and was observed kicking and repelling the male to dislodge immediately after a short mating duration when paired with different aged group of male.
In the presence of a rival male, there was no difference in the mating duration of brachypterous (6.00 [plus or minus] 0.25 min) and macropterous males (5.17 [plus or minus] 0.40 min) ([F.sub.1, 72] = 2.71, P = 0.11; Table 2a).
Costs associated with flight capability may impose asymmetries between male wing forms in their: (1) ability to detect and locate calling females, (2) aggressiveness during male-male interactions, (3) choice by females, or (4) sperm load and mating duration. Thus, the two wing forms may not acquire matings or sire offspring with equal frequency.