Question

which is commonly used for improving cattle breeds why?

Answer 1

cross breeding is commonly used for improving cattle breeds.cross breeding through 2 good varities of cattle produce good variety . for eg: foreign cross breeding such as Jersey Brown.

Answer 2

the most commonly used method for improving cattle breed is cross breeding.
it is because cross breeding helps in getting desired qualities of breed that is a breed with superior characters. this helps in improving cattle breeds.

hope my answer is useful to you.