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see mammary glandmammary gland,
organ of the female mammal that produces and secretes milk for the nourishment of the young. A mammal may have from 1 to 11 pairs of mammary glands, depending on the species. Generally, those mammals that bear larger litters have more glands.
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the mammary glands of agricultural animals. In ruminants and mares the udder is located in the inguinal region, between the thighs. In swine udders are symmetrically placed right and left of the white line on the belly. The udder of the cow, camel, and reindeer consists of two fore, or belly, parts and two rear, or hip, parts. Milk is synthesized in the secreting epithelium of tiny sacs called alveoli. Each cell synthesizes milk with each of its constituent parts. Alveoli, the largest of which include up to 100 epithelium cells each, are placed radially around the milk ducts. These ducts unite to form larger ones and open into milk cisterns. Milk is retained in the udder because of capillary action, as well as the presence of circular closing muscles (sphincters) in the teats. The udder is well supplied with blood, because 500 liters of blood must pass through the udder in order to make 1 kg of milk.

In heifers the glandular tissues of the udder begin to grow with the onset of sexual maturity and develop very intensely not long before calving. (In pregnant cows this is in the second half of the dry period, a month before calving.) In dairy cows the udder is goblet-shaped and set forward. It is firmly attached to the body (not hanging), and its parts are even and symmetrically placed. This kind of udder is soft, pliant, and elastic to the touch; after milking it becomes smaller and has long, twisted, clearly visible veins. The udders of sheep, goats, and mares each consist of two complexes of glands and two teats.


Zaks, M. G. Molochnaia zheleza. Moscow-Leningrad, 1964. Chapter 1. [5_1570_1]


(vertebrate zoology)
A pendulous organ consisting of several mammary glands enclosed in a single envelope; each gland has its own nipple; found in some mammals, such as the cow and goat.


the large baglike mammary gland of cows, sheep, etc., having two or more teats
References in periodicals archive ?
Once adequate selection is carried out, these can effectively contribute to the improvement of milk quality by reducing the incidence of problems related with udder health at calving, as well as the locomotor system, among others, in addition to providing comfort for the cow due to lower production stress, ensuring that animals in the herd become increasingly healthier (Simianer et al.
Shaken Udder recipes have natural ingredients, with nothing artificial added.
We know some ranchers who clip the hairy udders at calving time.
Missan buffalo showed significantly higher udder measurements values (table, 2) except the front teat length as Basrah buffalo got higher values.
It made me laugh to see the boy suckling milk - in one hand he's holding the cow's leg, and with the other he plays with the cow's udder, all while his mouth is suckling milk.
In 2002, About Face, LLC, researched and reformulated the original udder balm to accommodate the discriminating taste of devoted advocates and an ever- increasing number of appearance-conscious adults.
In 1996, for instance, mad cow disease became Rama's unlikely muse as the malady spread across Europe; a series of truly elegant, if macabre, drawings featuring taut, tumescent udders and other bestial part objects was the result of her enthrallment.
When a colleague in the veterinary school read the article in 1998, he popped into O'Brien's office and asked him for a consult on the possibility of screening show animals for evidence of injected gas in their udders.
I have written to the NFU demanding that an udders at dawn duel be organised.
The purpose of this research was to determine the presence of Clostridium perfringens found in or on dry soil, water, silage, soil in a barn, cow bedding, and cow udders.
So Lay designed artificial udders and covered them with cloths that had the scent of the mother's udder on them.