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
Half-Breeds (politics) Half-Breeds (politics) The "Half-Breeds" were a political faction of the United States Republican Party in the late 19th century. The Half-Breeds were a moderate group, and were the opponents of the Stalwarts, the other main faction of the Republican Party. The main issue that divided the Stalwarts and the Half-Breeds was political patronage. The Stalwarts were in favor of political machines and spoils system-style patronage, while the Half-Breeds, led by Maine senator James G. Blaine, were in favor of civil service reform and a merit system. The epithet "Half-Breed" was invented in derision by the Stalwarts to denote those whom