Animal breeding is primarily carried out by how many methods?

What is the successful result of the comprehensive cooperation of cattle breeders, farmers, workers, traders, and officials?

The animals that we would expect in a dairy are:

In India and China,what is the approximate percentage of the world's total livestock population?

Select the correct statements for the management of dairy farming.
$I -$ Milk production primarily depends on the quality of the breed.
$II -$ To obtain good production capacity,proper care of animals,including good housing,sufficient water,and a disease-free environment,is necessary.
$III -$ Animals should be fed any type of food.
$IV -$ Quality and quantity of fodder given to cattle should not be emphasized.
$V -$ The processes of milking,storage,and transport of milk and milk products have been mechanized,minimizing direct human contact.
$VI -$ Regular visits by a veterinary doctor are mandatory.
$VII -$ Proper arrangements are made for the storage of milk and eggs.

Name the methods employed in animal breeding. According to you,which one of the methods is best? Why?