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Dairy cattle (also called dairy cows) are cattle bred with the ability to produce large quantities of milk, from which dairy products are made. Dairy cattle generally are of the species Bos taurus. [1] Historically, little distinction was made between dairy cattle and beef cattle, with the same stock often being used for both meat and milk ...
Female cattle, also referred to as "heifers" in agriculture, will gradually enter standing estrus, or "standing heat," starting at puberty between 9 and 15 months of age. The cow estrous cycle typically lasts 21 days. [5] Standing estrus is a visual cue which signifies sexual receptivity for mounting by male cattle.
A freemartin is the normal outcome of mixed twins in all cattle species which have been studied. [16] It is most frequent in cattle and does not normally occur in most other mammals, [16] though it has been recorded in sheep, [17] [18] goats, [19] [18] and pigs. [20]
Without an ultrasound or other special tools, determining if a sheep is pregnant is difficult. [1] [8] Ewes only begin to visibly show a pregnancy about six weeks before giving birth, so shepherds often rely on the assumption that a ram will impregnate all the ewes in a flock. [1]
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."
When animal sexual behaviour is reproductively motivated, it is often termed mating or copulation; for most non-human mammals, mating and copulation occur at oestrus (the most fertile period in the mammalian female's reproductive cycle), which increases the chances of successful impregnation.
Most couples don’t get pregnant when they first try to conceive and that is normal, experts explain. Nearly 60% of women say they wish they knew how long it would take to get pregnant before ...
By using cows that produce offspring within a one to two-week period, synchronized breeding allows dairy farmers to artificially inseminate cows for maximum pregnancy rates with minimal effort. [29] BST is a placental lactogen (PL) hormone and falls under the class of growth hormone, or somatotropin.