The mating of closely related animals within the same breed for 4-6 generations is called inbreeding. The strategies for inbreeding are: ;-
(i) Superior males and females of the same breed are identified and then mated.
(ii) The progeny obtained from such type of matings are evaluated and superior males and females among them are identified for further mating.
(iii) In case of cattle, more milk per lactation is the criteria for superior female for cow and buffalo. Where as a superior male is the one who give rise to superior progeny.