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
Campolina is well developed. One symptom of poor breeding is a narrow chest with inadequate musculature between the front legs. This is a particular concern with the crossbred "Mangolina" (Mangalarga Marchador x Campolina) Visually, however, the breeding practice frequently results in animals that are heavy in the rear end and look weak and unbalanced in rostro-caudal plane when viewed for the animal’s full length. The underline of the Campolina should appear well fleshed but not overly rounded. There should be a good inverse symmetry in silhouette or side profile between the curvature of the underline and the fully outstretched neck and