Methods of Animal breeding: There are two methods of animal breeding, namely inbreeding and out breeding:
1. Inbreeding: Breeding between animals of the same breed for 4-6 generations is called inbreeding. Inbreeding increases homozygosity and exposes the harmful recessive genes.
Continuous inbreeding reduces fertility and even productivity, resulting in “inbreeding depression”. This can be avoided by breeding selected animals of the breeding population and they should be mated with superior animals of the same breed but unrelated to the breeding population. It helps to restore fertility and yield.
2. Outbreeding: The breeding between unrelated animals is called outbreeding. Individuals produced do not have common ancestors for 4-6 generations.
Out breeding helps to produce new and favourable traits, to produce hybrids, with superior qualities and helps to create new breeds. New and favourable genes can be introduced into a population through outbreeding.
