Strategy for breeding
(i) Superior males and superior females of the same breed are selected for mating to obtain the progeny.
(ii) Among the progeny, superior males and females are again identified for mating to obtain a further good variety.
(iii) One major advantage of inbreeding is that it increases the homozygosity.
(iv) Inbreeding is necessary to develop a pure line in an animal.
(v) Inbreeding exposes harmful recessive genes that are eliminated by selection.
(vi) Inbreeding facilitates the accumulation of superior genes and elimination of the less desirable genes as per the requirement of breeding procedure.
(vii) Sometimes close inbreeding reduces fertility and even productivity which is called inbreeding depression
(viii) Outbreeding, it refers to the breeding of unrelated animals either of the same breeds (but do not have common ancestors) or of between different breeds (cross-breeding) or even different species (interspecific-hybridisation).
