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Oestrus ovis, the sheep bot fly, is a widespread species of fly of the genus Oestrus. It is known for its parasitic predation and damage to sheep, deer, goats and sometimes cattle. There have also been many records of horse, dog [1] and human infestation. In some areas of the world it is a significant pest which affects the agricultural economy ...
Estrus or oestrus refers to the phase when the female is sexually receptive ("in heat" in American English, or "on heat" in British English). Under regulation by gonadotropic hormones , ovarian follicles mature and estrogen secretions exert their biggest influence.
Oestrus is a genus of bot flies, from the family Oestridae. ... 1758 (sheep bot fly) Oestrus spec Linnaeus, 1758; Oestrus variolosus Loew, 1863; References
The etymology of the term "freemartin" is uncertain: speculations include that "free" may indicate "willing" (referring to the freemartin's willingness to work) or "exempt from reproduction" (referring to its sterility, or to a farmer's decision to not bother trying to breed a freemartin, or both), or that it may be derived from a Flemish word for a cow which gives no milk and/or has ceased to ...
Casu Marzu is typically produced at the end of June when local sheep milk begins to change as the animals enter their reproductive time and the grass dries from the summer heat. The coastal town ...
Domesticated sheep are herd animals that are bred for agricultural trade. A flock of sheep is mated by a single ram, which has either been chosen by a farmer or, in feral populations, has established dominance through physical contests with other rams. [1] Sheep have a breeding season (tupping) in the autumn, though some can breed year-round. [1]
You stop dead in your tracks. Your heart races, heat rushes to your face, and your mouth goes dry. Is it…? You inch closer, barely trusting what you’re seeing. Yes. Yes, it is. You’ve just ...
This period of advertised fertility is known as oestrus, "estrus" or heat. [9] In species that experience estrus, females are generally only receptive to copulation while they are in heat [9] (dolphins are an exception). [10] In the estrous cycles of most placentals, if no fertilization takes place, the uterus reabsorbs the endometrium.