What are the uses of poultry by products.

Explanation

Poultry by products:
1. The feathers of poultry birds are used for making pillows and quilts.
2. Droppings of poultry can be used as manure in fields. The droppings are rich in nitrogen, potash and phosphates.
3. A number of poultry by products like blood­ meal, feather meal, poultry by-product meal and hatchery by-product meal are used as good sources of nutrients for meat producing animals and poultry. These by products supply proteins, fats, vitamins and good amount of minerals.