Question

what is the purpose of cross breading

Answer 1

The purpose of crossbreeding is to produce hybrid vigor, which is determined by the degree of genetic difference between the parent breeds. The greater the difference between two breeds, the greater the hybrid vigor exhibited by the cross.

Answer 2

The major purpose of crossbred dairy cattle is that they exhibit the strengths of all breeds from which they descend with an added advantage of heterosis.

Heterosis tends to be most important for lowly heritable traits such as fertility and survival.

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