Optimal protein diet improves egg production and reproductive tract morphology

A shortage of protein resources in poultry feed is an important limiting factor affecting poultry productivity. In addition, nitrogen emissions from the poultry industry is an increasing environmental concern affected by dietary amino acid balance. A key strategy to overcome these issues is to optimise protein raw material consumption and improve gut microbiota through proper high-quality protein intake. A team of Chinese researchers determined the optimal protein supply in the diet for clean