Sentence examples for mating age from inspiring English sources

Smaller animals are more likely to survive to mating age than big ones, the thinking goes, making larger females scarcer than smaller males.

The mating age gap is most pronounced in societies that favor polygyny [27], or a gerontocracy [14], in which old men monopolize access to reproductive females.

Thus, pheromone profiles are strongly affected by mating, age (or perhaps time since mating), and potentially by egg-laying.

The strength of selection in Fig. 4 will vary with the realized fertility of older males, however, the general pattern will be expected to persist given any mating age gap favoring older males.

SCR is a newly developed method to evaluate the fertility of bull in the US, and includes several components in the evaluation model, i.e. the expanded service sire term, inbreeding of the bull, inbreeding of the embryo from the mating, age of the bull, AI organization combined with year of the mating, and fertility of the cow a bull is mated with (http://aipl.arsusda.gov/reference/arr-scr1.htm).

We performed microarray analysis with RNA isolated from fat bodies of mated, age-matched females either subjected to DR for 7 d or with fat body specific Sir2 overexpression after 24 h induction by RU486.

On the basis of our results, breeders should be advised to avoid mating at age 3 years and to be particularly vigilant in the busy spring months when most foals are born.

Mating behavior also differed between mating order, age, and size.

There is also support for the hypothesis that males tailor their ejaculate in response to female factors such as size, mating status, age, fecundity and familiarity [ 12].

The study shows that there is a "fitness basis" to people's choice of mate age, says Robin Dunbar, an anthropologist at the University of Liverpool, U.K. It also reveals a "clash of interest between the two sexes," he says, because women have a smaller window of reproductive opportunity.

Moreover, after correcting for mate age, VA, VPE, VPLOT and VYEAR together accounted for less than 15% of variation in mate FPS in the pedigree analysis.