Abstract: Through rejuvenating and optimizing the strains used in the production of enzymatic blood hydrolysate feeds by means of bioautography,and through improving the preparation of fermentation carriers as well as the fermentation technology,it has been proved by data analysis and experiments on feeding livestock and poultry that the quality of products have been improved and economic returns are high.

Key words: Enzymatic blood hydrolysate, Fermentation technology, Effect of feeding livestock and poultry