animal breeding
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animal breeding
In animal breeding: Breeding and variation
…a breed are designated as purebred. The essential difference between purebred and nonpurebred animals is that the genealogy of purebred animals has been carefully recorded, usually in a herd book, or studbook, kept by some sanctioning association. Purebred associations provide other services that are useful to their members to enhance…
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pig breeding
In livestock farming: Breeding and growthPurebred production, or line breeding, is used to concentrate desired genes—for example, litter size or growth rate—within a population of animals. White pig breeds are generally noted for large litters (a maternal characteristic) and coloured breeds for rapid growth and meat quality (paternal characteristics).
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