The $White$ $Revolution$ is associated with which industry?

What is silage?

$A$: Fish meal is a rich source of protein for cattle and poultry.
$R$: Fish meal is prepared from the non-edible parts of fishes such as tails,fins,and bones.

Assertion $A$: Agriculture began thousands of years ago.
Reason $R$: Animal husbandry includes dairy farming,poultry farming,beekeeping,and fisheries.
Which option is correct for Assertion $A$ and Reason $R$?

The methods of animal breeding are .......... .

Discuss briefly how pure lines are created in animal husbandry.