Cows by Valentins

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Information about Cows by Valentins
Education

Published on March 3, 2014

Author: priomhoide

Source: slideshare.net

Cows!

Some language: The word cow comes from all of these words; Old English -cū Old Norse -kӯr Old High German -kuo Latin -bōs Greek -boūs Sanskrit -gāŭs

The word cow also means; • The mature female of any species of cattle. • The mature female of various other mammals, such as the elephant, whale, and seal • Or any domestic species of cattle.

Evolutionary history • Modern species of Bos are thought to have evolved from a single ancestor, the aurochs This particular species survived until the early 17th century when it was hunted to extinction. An aurochs skeleton ----

Why are cows special? • The special features of cows include a body mass in excess of 450 kg. Their digestive track has four compartments. There are cows with horns or no horns at all. This depends upon their breeding and genetics • Cattle have 32 teeth. They have 6 incisors and 2 canines in the front.

Cows...mouth • The dental pad or browsing pad is a feature of the cow that results from a lack of upper incisors and helps them gather large quantities of grass and other plant matter

Breeding and herds • Most Bos species have a lifespan of 18–25 years in the wild, with up to 36 being recorded in captivity. • They have a 9–11 month gestation, depending on the species, and rarely have two young in the spring. • Most species travel in herds ranging in size from 10 members into the hundreds. Within most herds, there is one bull for all the cows. • They are generally diurnal, resting in the hot part of the day and being active morning and afternoon. • Some species are also migratory, moving with food and water availability.

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