Unconventional protein feed resources in China are abundant,primarily including cottonseed meal and rapeseed meal.Cottonseed meal and rapeseed meal have high protein content,but the presence of various anti-nutritional factors,such as free gossypol,thioglucosides,and phytic acid.They not only affect the digestion and absorption of nutrients in animals but can also lead to metabolic diseases,limiting their widespread application in livestock and poultry feed.Methods for removing anti-nutritional factors mainly include physical,chemical,and biological approaches.Among them,microbial fermentation...
