Search results
Results from the WOW.Com Content Network
After mating, sheep have a gestation period of around five months. Within a few days of the impending birth, ewes begin to behave differently. They may lie down and stand erratically, paw the ground, or otherwise act out of sync with normal flock patterns. A ewe's udder will quickly fill out, and her vulva will swell.
In mammals, the term refers chiefly to the early stages of prenatal development, whereas the terms fetus and fetal development describe later stages. [2] [4] The main stages of animal embryonic development are as follows: The zygote undergoes a series of cell divisions (called cleavage) to form a structure called a morula.
Another factor is due to the shortage of food stocks during winter as the insects are being driven away and as the result, bat hibernate in pregnant condition. [ 28 ] In pinnipeds , the purpose of delayed implantation is in order to increase survival chance of the young animals as the mother ensure that the neonates are born at an optimal season.
The vulval discharge from the mare in oestrus was also referred to as Hippomanes in antiquity and was used equally for love potions and love spells. [ 8 ] [ 9 ] In a Greek mythology tale, Glaucus , the son of Sisyphus , is devoured by his horses at the funeral games for Pelias , the father of Acastus , during the chariot race, because Aphrodite ...
In most species, lactation is a sign that the female has been pregnant at some point in her life, although in humans and goats, it can happen without pregnancy. [ 2 ] [ 3 ] Nearly every species of mammal has teats ; except for monotremes , egg-laying mammals, which instead release milk through ducts in the abdomen.
Mares carry their young (called foals) for approximately 11 months from conception to birth. (Average range 320–370 days.) [2] Usually just one young is born; twins are rare. When a domesticated mare foals, she nurses the foal for at least four to six months before it is weaned, though mares in the wild may allow a foal to nurse for up to a year.
A pregnant lioness. In mammals, pregnancy is the period of reproduction during which a female carries one or more live offspring from implantation in the uterus through gestation. It begins when a fertilized zygote implants in the female's uterus, and ends once it leaves the uterus.
Mare exams: to determine if she is healthy enough to breed, to determine when she ovulates, and (if AI is used) to inseminate her; Mare transport, care, and board if the mare is bred live cover at the stallion's residence; Veterinary bills to keep the pregnant mare healthy while in foal