What is the purpose of out-crossing?
To develop new stable breeds
To combine desirable qualities of two different breeds
To overcome inbreeding depression
To produce hybrid animals for commercial production
Out-crossing involves mating animals within the same breed that have no shared ancestors in their pedigree for a period of 4-6 generations. It is an effective breeding method specifically suited for animals with below-average productivity, such as low milk production or slow growth rate in beef cattle. Through out-crossing, a single mating can significantly alleviate the negative effects of inbreeding depression.
Option 3 is the correct answer.