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Diagram of the female rabbit reproductive system with main components labeled. The adult female reproductive tract is bipartite, which prevents an embryo from translocating between uteri. [91] The female urethra and vagina open into a urogenital sinus with a single urogenital opening. [92]
The Environmental Health Perspective, published by the National Institute of Health, states, "The rabbit [is] an extremely valuable model for studying the effects of chemicals or other stimuli on the male reproductive system." [122] Rabbits are also used in the study of bronchial asthma and related lung diseases, [123] stroke prevention ...
Female European rabbits may become pregnant at three months of age, but do not reach their full reproductive ability until they are two years old, after which they remain able to reproduce for 4 more years. [40] Female European rabbits nurse their kits once a night, for only a few minutes.
Rabbits are social creatures who do best when they have another rabbit to keep them company. In the wild, they always live in groups, so for the sake of their health and wellbeing, we recommend ...
The female is receptive to males only while experiencing estrus. For breeding livestock, there are a number of advantages to be gained by finding methods to induce ovulation on a planned schedule, and thus synchronize the estrus cycle between many female animals.
A female dog is usually diestrous (goes into heat typically twice per year), although some breeds typically have one or three cycles per year. The proestrus is relatively long at 5 to 9 days, while the estrus may last 4 to 13 days, with a diestrus of 60 days followed by about 90 to 150 days of anestrus.
The mammalian female reproductive system contains three main divisions: the vagina and uterus, which act as the receptacle for the sperm, the ovaries, which produce the female's ova, and the vulva, which consists of the labia and clitoris. The vagina, uterus and ovaries are always internal while the vulva is external.
In species that use the XY sex-determination system, parthenogenetic offspring have two X chromosomes and are female. In species that use the ZW sex-determination system the offspring genotype may be one of ZW (female), [28] [29] ZZ (male), or WW (non-viable in most species, [31] but a fertile, [dubious – discuss] viable female in a few, e.g ...