The $Gaddi$ breed of goat is distributed in which of the following regions?

$Dairying$ is the management of animals for milk and its products for human consumption.

Animal husbandry deals with
$I$. Breeding of livestock like buffaloes,cows,sheep,camels,etc.,that are useful to humans.
$II$. Rearing,catching,selling,etc.,of fish,molluscs,and crustaceans.
$III$. Breeding of fowls for human use.
Which of the statements given above are correct?

Inbreeding is carried out in animal husbandry because it

Silage supplemented with oil cakes,vitamins,etc. makes up good feed for rearing breeds of . . . . . . .

In animal husbandry,if two closely related animals are mated for a few generations,it results in loss of fertility and vigour. Why is this so?