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Canine sperm can live for 10 to 11 days [22] in the oviducts (fallopian tubes) so if a female is bred 10 days before the oocytes (eggs) can be fertilized, she will appear to have a gestation length of 70 days. If she is bred on the day the oocytes can be fertilized, her gestation length will appear to be 60 days long.
There are a limited number of non-surgical fertility control options available for cats and dogs, which vary in effectiveness, duration of action and safety. Progestin contraceptives are approved for contraception in male and female dogs and cats in multiple countries. Typically approval is for a few months of use.
Dogs reach puberty between 6 and 24 months old, at which age female dogs will start having an estrous cycle. There are four stages of estrous: proestrus, estrus, diestrus, and anestrus. A dog in estrus, also known as being "in heat", can become pregnant during this 3- to 21-day period. [3]
Theriogenology is a specialty of veterinary medicine concerned with animal reproduction. This includes the physiology and pathology of male and female reproductive systems of animals and the clinical practice of veterinary obstetrics, gynecology, andrology and assisted reproductive technologies (ART).
Download as PDF; Printable version; ... This category collects information about how dogs breed and how and why people breed dogs. ... Canine reproduction;
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An oocyte (UK: / ˈ oʊ ə s aɪ t /, US: / ˈ oʊ oʊ-/), oöcyte, or ovocyte is a female gametocyte or germ cell involved in reproduction. In other words, it is an immature ovum, or egg cell. An oocyte is produced in a female fetus in the ovary during female gametogenesis.
Most organisms that create their offspring using sexual reproduction have two common sexes and a few less common intersex variations. In some species, there are hermaphrodites, i.e., individuals that can function reproductively as either female or male. [2] There are also some species in which only one sex is present, temporarily or permanently.