Cycle

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Related to Estrus cycle: anestrous

Cycle

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A young female's chance of becoming pregnant early is greater if she has reached puberty in time to have two or three estrus cycles before the start of the breeding season.
We observed estrus cycles with no normal epithelial cell reconstruction in the vagina.
Therefore, based on these differences in progesterone concentrations between low and high fecundity groups, our data also suggest that there are more follicles present during subsequent waves of follicular development in the estrus cycle among HP goats and that they mature at a smaller size than those in PP animals.
Such calls, even when dealing with a buck that's willing to fight, focus on the rut and where does are in their estrus cycle.
Conventional theory is that with few bucks in any given deer population, not all does may be bred during their first estrus cycle (heat).
These authors demonstrated that the EV exposure provoked alterations in the normal development of the ovary, leading to the formation of multifollicular cysts, and they also described alterations to estrus cycles.
The results demonstrated marked altered reproductive function in mice taking Genistein including altered vaginal opening, abnormal estrus cycles, early reproductive senescence and subfertility/infertility at doses of Genistein that are at human infant exposure levels.
The researchers monitored the female rats' estrus cycles and found they showed this sensitivity to moderate stress only when they were in a high-estrogen phase.