A breeder's a person who practices the vocation of mating carefully selected specimens of the same breed to reproduce specific, consistently replicable qualities and characteristics. This might be as a farmer, agriculturalist, or hobbyist, and can be practiced on a large or small scale, for food, fun, or profit. See also: Animal husbandry Animal fancy Breeding Cat breeding Dog breeding Horse breeding Pigeon keeping Plant or crop breeding Selective breeding Tree breeding… (More on Breeder)