A period of time when female mammals will acccept males and mating occurs. In specific terms, when ovulation occurs. At this time, the pituitary output is predominantly LH and the newly formed corpus luteum in the ovary is producing large quantitites of progesterone.
female mammals typically are receptive to mating with a male only when reproductive hormones and other physiological changes allow her to be receptive. Part of this process involves the release of an egg from the ovary (ovulation) which can then be fertilized by the male's sperm. Many of the larger mammals mate only once per year, thus the females reach the state of estrus just once, when they mate. Many small mammals, such as the mice, mate more than once each year, thus the females reach estrus more than once each year.
Period when a female is receptive to mating; characterized by changes in the sex organs; heat (usually midway through what humans call the menstrual cycle). EUKARYOTES â€“ An organism composed of one or more cells containing visible nuclei and other organelles.
The heat period - the time during the reproductive cycle when the queen (female) displays interest in mating. Queens may rub against objects, crawl with their belly close to the floor, roll and vocalize (also spelt oestrus)