The housing, nutritional and environmental requirements of broilers are somewhat different from those of egg layers.

Cattle husbandry is done for the following purposes:
$(i)$ Milk production
$(ii)$ Agricultural work
$(iii)$ Meat production
$(iv)$ Egg production

$(a)$ Give two examples of shellfishes.
$(b)$ Mention the names of four marine fish of high economic value.

Name the two vitamins which are added in the poultry feed.

Paras visited a poultry farm with his younger brother,who was perturbed to see that the caretakers were feeding them with grains left in the harvested field which humans cannot consume. Paras explained to him that it would not harm them.
$(i)$ List the two major purposes of poultry farming.
$(ii)$ Name an indigenous and an exotic poultry breed.
$(iii)$ Why was Paras' brother perturbed?

The ration (daily food requirement) for broilers is carbohydrate-rich with adequate minerals.