“It’s astounding that we don’t know the most basic thing about life,” said Boris Worm, a marine biologist at Dalhousie University in Nova Scotia. On Tuesday, Dr. Worm, Dr. Mora and their colleagues presented the latest estimate of how many species there are, based on a new method they have developed. They estimate there are 8.7 million species on the planet, plus or minus 1.3 million.
http://www.nytimes.com/2011/08/30/science/30species.html
According to an estimate from 2011, there are 1.4 billion cattle in the world. In 2009, cattle became one of the first livestock animals to have a fully mapped genome. Some consider cattle the oldest form of wealth, and cattle raiding consequently one of the earliest forms of theft.
https://en.wikipedia.org/wiki/Cattle
In 1833, a British entomologist named John Obadiah Westwood made the earliest known estimate of global biodiversity by guessing how many insect species there are. He estimated how many species of insects lived on each plant species in England, and then extrapolated that figure across the whole planet.
http://www.nytimes.com/2011/08/30/science/30species.html
Holstein Fresian. Holstein Friesian cows can be traced back more than 2000 years. They were first imported into Australia in the mid 1800’s. The name Holstein Friesian is derived from the province of Friesland in the Netherlands and Schleswig-Holstein in the Rhine delta region. They are characterized as being a versatile,
http://www.parmalat.com.au/info-center/different-breeds-of-cows/
There is an estimated 1.3 billion head of cattle and 920 breeds of cow in the world today. Cows are referred to as the ‘fosters mothers to the human race’ because they produce most of the milk that people drink. The mature female of the species is called a ‘cow’. The mature male of the species is called a ‘bull’. A group of cows is called a ‘herd’. A young female cow is called a ‘heifer’. A baby cow is called a ‘calf’. A cow spends up to 6 hours a day eating. Cows spend over 8 hours a day chewing thier cud which is regurigated, partially digested food.
https://animalcorner.co.uk/animals/cows/
A High Quality, USDA Choice Beef will yield approximately 70% of the Hanging or Dressed Weight. The yield on the take home meat weight from the live weight of the (very lean) steer is approximately 50%.
https://www.quora.com/Beef-How-many-different-cuts-of-meat-can-you-get-from-a-cow
Cattle—colloquially cows—are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bos taurus.
https://en.wikipedia.org/wiki/Cattle
With an average market (live or on hoof) weight of 1,150 lbs and the average yield of 62.2%, the typical steer will produce a 715 lb. (dressed weight) carcass. The dressed beef (or carcass) will yield approximately 569 lbs. (further details below) of red meat and trim (take home meat - which includes the average weight of 27 lbs of variety meat: liver, heart, tongue, tripe, sweetbreads and brains) and 146 lbs of fat, bone and loss.
https://www.quora.com/Beef-How-many-different-cuts-of-meat-can-you-get-from-a-cow
Cattle were originally identified as three separate species: Bos taurus, the European or taurine cattle (including similar types from Africa and Asia); Bos indicus, the zebu; and the extinct Bos primigenius, the aurochs. The aurochs is ancestral to both zebu and taurine cattle.
https://en.wikipedia.org/wiki/Cattle
The two most popular species of cows are: Bos Taurus (European-type cattle like the Holstein, Angus and Hereford) Bos indicus (Indian/African-type cattle like Brahman, Nelore and Indu-Brazilian) Other five lesser known cows include the following: Bos gaurus (Gaur, or Indian Bison) Bos frontalis (Gayal)
http://www.answers.com/Q/How_many_species_of_cows_are_there
how many species of cows are there?
There are two species of cow. There are two species of cows.