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Cattle bred specifically for milk production are called milking or dairy cattle; [1] a cow kept to provide milk for one family may be called a family cow or a milker. A fresh cow is a dairy term for a cow (or a first-calf heifer in few regions) who has recently given birth, or "freshened."
A cow giving birth. The gestation period for a cow is about nine months long. The ratio of male to female offspring at birth is approximately 52:48. [15] A cow's udder has two pairs of mammary glands or teats. [16]
These cows are housed indoors throughout their lactation and may be put to pasture during their 60-day dry period before ideally calving again. Free stall-style barns involve cattle loosely housed where they can have free access to feed, water, and stalls, but are moved to another part of the barn to be milked multiple times a day.
This is a collection of lists of mammal gestation period estimated by experts in their fields. The mammals included are only viviparous (marsupials and placentals) as some mammals, which are monotremes (including platypuses and echidnas) lay their eggs. A marsupial has a short gestation period, typically shorter than placental.
The gestation period averages 285 days, but varies depending on the age and nutrition of the mother. The sex of the calf may also affect the carrying time, as male calves are carried for a longer period than females. Location, breed, body weight, and season affect the overall health of the animal and in return may also affect the gestation period.
Most beef cattle are mated naturally, whereby a bull is released into a herd of cows approximately 55 days after the calving period, depending on the cows' body condition score (BCS). If it was a cow's first time calving, she will take longer to re-breed by at least 10 days. [4]
4. As the head of the calf comes out of the vulva, the rest of the body hidden inside the mother creates the strange illusion of a cow with two heads. 5. Lying cow. The body of the calf is half out of the vulva. 6. The two front legs are visible, while the two back legs are still inside. No human support will be necessary during the process. 7.
The Dutch cow was also considered to require more quality fodder and need more looking after than some English cattle that could easily be out-wintered. In an era of agricultural depression, breed societies notably had flourished, as a valuable export trade developed for traditional British breeds of cattle.