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Zebu

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Zebu, also known as indicine cattle or humped cattle, are a specific type of domestic cattle.

Bos taurus indicus
Bos taurus indicus

They originated in South Asia and are highly adapted to tropical environments. These animals are vital to human societies across the globe. They provide meat, milk, and labor for many different cultures. They also provide byproducts like hides and dung for fuel. Because they thrive in heat, they are essential for farming in the tropics.

Physically, zebu differ from taurine cattle, which are common in cooler climates.

Kankrej 01
Kankrej 01

They possess a distinct fatty hump on their shoulders. They also have a large dewlap, which is a fold of skin hanging under the neck. Their ears are sometimes drooping. These physical traits help them tolerate high temperatures, intense sunlight, and drought. Such adaptations allow them to live successfully in savanna and steppe environments.

Zebu reproduction and behavior follow specific patterns. A cow is generally mature enough to give birth at 29 months of age. This delay allows her body to develop enough to handle the strain of carrying a calf and lactation. The gestation period, or the time a calf is carried, averages 285 days. This time can vary based on the mother's nutrition and age. Interestingly, male calves are often carried for a longer period than females. Once calves are weaned, mothers show strong affiliatory behavior. They may continue to choose the same offspring for grooming and grazing for 4 to 5 years.

There are approximately 75 known breeds of zebu. These breeds are split almost evenly between those found in Africa and those in India.

Zébus de Madagascar 02
Zébus de Madagascar 02

Some examples include the Kankrej and Guzerat from India, and the Nelore, which is an off-breed of Ongole cattle. In Brazil, the Nelore became the primary breed after being imported in the early 20th century. Today, more than 80% of beef cattle in Brazil are either purebred or hybrid Ongole cattle. This accounts for approximately 167,000,000 animals. These cattle are valued because they thrive on poor-quality forage and breed easily.

The history of zebu is tied to the extinct wild aurochs.

Clevelandart 1973.160
Clevelandart 1973.160

Scientists believe the aurochs split into two genetic strains: the humped Bos indicus and the humpless Bos taurus. Domestication likely occurred between 6,000 and 7,000 years before present at Mehrgarh in modern-day Pakistan. Other centers of domestication included South India and Gujarat. The wild Indian aurochs eventually became extinct during the Indus Valley Civilisation. This was likely due to habitat loss from expanding pastoralism and interbreeding with domestic zebu.

Scientists have spent years debating the exact classification of zebu. In 1758, Carl Linnaeus introduced the scientific names Bos taurus and Bos indicus. In 1999, Juliet Clutton-Brock classified zebu as a distinct species. Later, in 2004 and 2005, both Clutton-Brock and Peter Grubb classified them as a subspecies called Bos taurus indicus. However, in 2011, Groves and Grubb classified them as a distinct species once again. The American Society of Mammalogists currently treats them as part of the Bos taurus species.

Zebu hold deep cultural and religious significance in many regions.

India.Mumbai.04
India.Mumbai.04

In India, they are venerated in Hinduism. The Mahabharata states they should be treated with the same respect as one's mother. In Madagascar, zebu are so central to life that there are 6,813 proverbs and expressions referring to them. In some cultures, they are even used in competitive rituals, such as the tolon'omby wrestling or jallikattu. From providing dung for fuel to serving as sacred symbols, the zebu is deeply connected to human history.

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🖼️ Images & Media (9)
File:Clevelandart 1973.160.jpg
Clevelandart 1973.160.jpg
File:GODL Rampurva bull in profile.jpg
GODL Rampurva bull in profile.jpg
File:Coin of Azes II LACMA M.84.110.8 (2 of 2).jpg
Coin of Azes II LACMA M.84.110.8 (2 of 2).jpg
File:Bos taurus indicus.jpg
Bos taurus indicus.jpg
File:Kankrej 01.JPG
Kankrej 01.JPG
File:Zébus de Madagascar 02.jpg
Zébus de Madagascar 02.jpg
File:Hariana_02.JPG
Hariana_02.JPG
File:India.Mumbai.04.jpg
India.Mumbai.04.jpg
File:A day in the life of a rural 03.jpg
A day in the life of a rural 03.jpg
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