Domesticated yaks are raised for their meat, dairy products, and fiber. Their dried manure is also a significant fuel source; sometimes it is the only available fuel in the Tibetan plateau. Donkey Donkeys are raised for their durability and vigor. Although donkeys are family of horses, sometimes they are preferred for their more pungent sense of self preservation. 4. Place the branding iron on the animal. Apply just the right amount of pressure for about 5 to 10 seconds. The correct length of time for applying the iron depends on the animal s breed, its hair cover, temperature of the iron, and weather condition. As a rule of thumb, the branding iron can be removed when the skin surrounding the branded area appears like dark copper. Raising animals has its origins in the shifting of cultures to settled farming communities rather than hunter-gatherer lifestyles. Animals are domesticated when their breeding and living conditions are controlled by humans. Over time, the collective behaviour, life cycle, and physiology of livestock have changed radically. Livestock are domestic animals that are used to produced foods and many other important products. Strongest and expensive qualities of leather and wool are made of the skins of some livestock and livestock can also help lots of people because some organs of it can supply drugs. Farmers in developing countries use livestock to draw farm utensils. A livestock trailer must be large enough to accommodate the number and size of animals to be transported. Law sets proper dimensions and ratios. It should also be well ventilated because highway fumes are potentially poisonous. Another important feature of livestock trailers is the nonslip floors. This is because animals usually panic if they slip. Its sheep farming is concentrated in the Northern and Eastern Cape, Western Cape, Free State and Mpumalanga. Ermelo in Mpumalanga is one of the largest wool-producing districts. Other breeds used in sheep farming are Afrino, South African Mutton Merino, Dohne, and Merino Landrace. .The Afrino is a woolled mutton breed that adapted the arid conditions.