Animal genetic resources for food and agriculture of animal genetic resources includes diversity at species, breed and within-breed level. Known are currently 8,800 different breeds of birds and mammals within 38 species used for food and agriculture. The main animal species used for food and agriculture production are cattle, sheep, goats, chickens and pigs. In the livestock world, these species are often referred to as "the big five". Some less-utilized species include the dromedary, donkey, bactrian camel, buffalo, guinea pig, horse, rabbit, yak, goose, duck, ostrich,partridge, pheasant, pigeon, and turkey. The history of animal genetic resources begins about 12,000 to 14,000 years ago. The domestication of major
Hip replacement (animal) performed in the medium-large breeds of dogs. An animal suffering from hip dysplasia may have been in some degree of chronic pain all its life from a very young age but mat show no overt sign of pain. Rather, they have adapted to the pain over an extended period, and learned to live with it. As a result in many animals, successful hip replacement is gives animals a level of playfulness and happiness not previously seen. As with all surgeries, results vary, and there is both risk and uncertainty involved. Animal hip replacements are usually made from the same material