Which type of breeding should be performed to obtain the desired traits from two different species of animals?

In dairy farm management,we deal with processes and systems that increase yield and improve quality of milk. Which of the following statements is incorrect in this regard?

Which animals are domesticated by humans for the dairy industry?

$A$ group of animals which are related by descent and share many similarities are referred to as:

All the following are objectives of dairy farm management,except:

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.