Life-cycle assessment of animal feed ingredients: Poultry fat, poultry by-product meal and hydrolyzed feather meal

This study presents an environmental life cycle assessment of poultry fat (PF), poultry by-product meal (PBM) and steam hydrolyzed feather meal (HF). These ingredients are obtained by rendering poultry by-products and can be used as valuable feedstuffs for the fish feed industry, displacing traditional fishmeal and fish oil, promoting a circular economy system by reducing waste, adding value to by-products of the poultry production and...