Zebu
Zebu | |
---|---|
Scientific classification (Disputed,[1] see § Taxonomy and name) | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Artiodactyla |
Family: | Bovidae |
Subfamily: | Bovinae |
Genus: | Bos |
Species: | B. indicus
|
Binomial name | |
Bos indicus | |
Synonyms[2][3] | |
The zebu (
Zebu are used as
In some regions, zebu have significant
Taxonomy
Both
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] In 2011, Groves and Grubb classified it as a distinct species again.[11][failed verification]
The
Currently (2024s), it is not correct to describe Zebu animals as Bos taurus indicus, but rather as Bos indicus,[4] because they are a different species from Bos taurus. The extinct wild auroch (Bos primigenius) population diverged into two distinct genetic strains: the humpless Bos taurus (taurine) and the humped Bos indicus (indicine or zebu).[12]
Origin
Zebu cattle were found to derive from the
Its wild ancestor, the Indian aurochs,
Archaeological evidence including depictions on pottery and rocks suggests that humped cattle likely imported from the
Phylogenetic analysis revealed that all the zebu Y chromosome haplotype groups are found in three different lineages: Y3A, the most predominant and cosmopolitan lineage; Y3B, only observed in West Africa; and Y3C, predominant in south and northeast India.[21]
Characteristics
Zebu, as well as many Sanga cattle, have humps on the shoulders, large dewlaps and droopy ears.[22]
Compared to taurine cattle, the zebu is well adapted to the hot tropical savanna climate and steppe environments. These adaptations result in higher tolerance for drought, heat and sunlight exposure.[23]
Behaviour and ecology
Studies on the natural weaning of zebu cattle have shown that cows wean their calves over a 2-week period, but after that, continue to show strong affiliatory behavior with their offspring and preferentially choose them for grooming and as grazing partners for at least 4–5 years.[24]
Reproduction
Zebu are generally mature enough to give birth when they are 29 months old. This is based on the development of their bodies to withstand the strain of carrying the calf and lactation. Early reproduction can place too much stress on the body and possibly shorten lifespans. The gestation period averages 285 days, but varies depending on the age and nutrition of the mother. The sex of the calf may also affect the carrying time, as male calves are carried for a longer period than females. Location, breed, body weight, and season affect the overall health of the animal and in return may also affect the gestation period.[23]
Health and diseases
The zebu is susceptible to
It is said to be resilient to parasites.[27]Breeds and hybrids
Zebu are very common in much of Asia, including Pakistan, India, Nepal, Bangladesh and China. In Asia, taurine cattle are mainly found in the northern regions such as Japan, Korea, northern China and Mongolia. In China, taurine cattle are most common in northern breeds, zebu more common in southern breeds, with hybrids in between.[28][29]
Geneticists at the International Livestock Research Institute (ILRI) in Nairobi, Kenya and in Addis Ababa, Ethiopia discovered that cattle had been domesticated in Africa independently of domestication in the Near East. They concluded that the southern African cattle populations derive originally from East Africa rather than from a southbound migration of taurine cattle.[30] The results are inconclusive as to whether domestication occurred first in Africa or the Near East.[31]
breeds.Some 75 breeds of zebu are known, split about evenly between African and Indian breeds.
List of widely distributed zebu breeds |
Other breeds of zebu are quite local, like the
Zebu, which are adapted to high temperatures,[54] were imported into Brazil in the early 20th century. Their importation marked a change in cattle ranching in Brazil as they were considered "ecological" since they could graze on natural grasses[Is there a ruminant that can't? clarification needed] and their meat was lean and without chemical residues.[definition needed][55]
In the early 20th century in Brazil, Zebu were crossbred with Charolais cattle, a European taurine breed. The resulting breed, 63% Charolais and 37% zebu, is called the Canchim. It has a better meat quality than the zebu and better heat resistance than European cattle. The zebu breeds used were primarily Indo-Brazilian with some Nelore and Guzerat. Another Charolais cross-breed with Brahmans is called Australian Charbray and is recognised as a breed in some countries.
From the 1960s onwards,
Uses
Zebu are used as
In
Within the Indian state of Tamil Nadu, zebu are used for jallikattu.
In 1999, researchers at Texas A&M University successfully cloned a zebu.[60]
Hindu tradition
Zebu are venerated in Hinduism of India. In the historical Vedic religion they were a symbol of plenty.[61]: 130 In later times they gradually acquired their present status. According to the Mahabharata, they are to be treated with the same respect 'as one's mother'.[62] In the middle of the first millennium, the consumption of beef began to be disfavoured by lawgivers.[61]: 144
Milk and milk products were used in Vedic rituals.
See also
References
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- ^ a b c American Society of Mammalogists (2021). "Bos taurus". ASM Mammal Diversity Database. Archived from the original on May 1, 2023.
- ^ a b Linnaeus, C. (1758). "Bos indicus". Systema naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1 (Tenth reformed ed.). Holmiae: Laurentii Salvii. p. 71.
- ^ a b "ACIR Community". acir.aphis.usda.gov. Retrieved 2024-07-04.
- ^ PMID 19770222.
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zebu sinesis
note: PDF download - ^ "Effect of Malaysian Zebu Cattle (Kedah-Kelantan) and their European Crosses on the Tick Biological Parameters Following Repeated Experimental Infestations".
- ^ "Distribution and production characteristics of Friesian crossbred cattle in Malaysia" (PDF).
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- ^ "Food Ark - Cattle Breeds - Pictures, More From National Geographic Magazine". Ngm.nationalgeographic.com. 2013-04-25. Archived from the original on June 25, 2011. Retrieved 2013-05-30.[unreliable source?]
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- ^ "One of the Oldest Cattle Breeds". American Miniature Zebu Association. Retrieved 2 December 2019.
- ^ Phaniraja, K.L.; Panchasara, H.H. (2009). "Indian draught animals power" (PDF). Veterinary World. 2 (10): 404–407.
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- ^ "Cloning gives second chance for bull". BBC News. 3 September 1999.
- ^ ISBN 978-1-85984-676-6.
- ^ "Mahabharata, Book 13-Anusasana Parva, Section LXXVI". Sacred-texts.com. Archived from the original on 12 October 2013. Retrieved 15 October 2013.