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
Mountain and moorland pony breeds and moorland ponies are shown in their "native" state, and are not trimmed or plaited (braided). In reality a little light trimming is commonplace, for example to show off the fine head of the Connemara, and Welsh ponies often have their manes pulled to a length of about six inches. In some cases, trimming is necessary - if a small breeds pony's tail was left to grow unchecked it would become matted with mud and the pony could stand on it, potentially causing injury to itself or its rider. Bridles are plain and workmanlike, without coloured browbands or embellishments. A