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Bos (from Latin bōs: cow, ox, bull) is a genus of bovines, which includes, among others, wild and domestic cattle.. Bos is often divided into four subgenera: Bos, Bibos, Novibos, and Poephagus, but including these last three divisions within the genus Bos without including Bison is believed to be paraphyletic by many workers on the classification of the genus since the 1980s.
Both scientific names Bos taurus and Bos indicus were introduced by Carl Linnaeus in 1758, with the latter used to describe humped cattle in China. [3]The zebu was classified as a distinct species by Juliet Clutton-Brock in 1999, [8] but as a subspecies of the domestic cattle, Bos taurus indicus, by both Clutton-Brock and Colin Groves in 2004 [9] and by Peter Grubb in 2005. [10]
The Australian Charbray (Bos taurus x Bos indicus) is an Australian breed of cattle derived from a cross between the French Charolais cattle and American Brahman cattle.The charbray breed was first conceived in the United States of America in the 1930s and later introduced into Australia in 1969. [1]
[8] [9] Cattle breeds vary widely in size; the tallest and heaviest is the Chianina, where a mature bull may be up to 1.8 m (5 ft 11 in) at the shoulder, and may reach 1,280 kg (2,820 lb) in weight. [10] The natural life of domestic cattle is some 25–30 years. Beef cattle go to slaughter at around 18 months, and dairy cows at about five years.
Achham cattle are a small breed less than 1 meter in height at the withers. It is also called Naumuthe cow as it measures only nine fists from its hoof to hump. [1] Achhami cattle (Bos indicus) are in the list of unique flora/fauna of Nepal. [2] They are suitable for hill conditions and low input systems, used mainly for milk production. [3]
[1] Cattle breeds fall into two main types, which are regarded as either two closely related species, or two subspecies of one species. Bos indicus (or Bos taurus indicus) cattle, commonly called zebu, are adapted to hot climates and originated in the tropical parts of the world such as India, Sub-saharan Africa, China, and Southeast Asia.
Nelore or Nellore cattle originated from Ongole Cattle (Bos indicus) cattle originally brought to Brazil from India. They are named after the district of Nellore in Andhra Pradesh state in India. The Nelore has a distinct large hump over the top of the shoulder and neck. They have long legs which help them to walk in water and when grazing.
Bovina is a subtribe of the Bovini tribe that generally includes the two living genera, Bison and Bos. [2] However, this dichotomy has been challenged recently by molecular work that suggests that Bison should be regarded as a subgenus of Bos.