Nutritional Value of Non-conventional Oilseed Meal and Its Application of Fermented Feed in Broiler Production

LEI Yuheng; Guo Zhaowen; SONG Min; MA Xianyong; CUI Yiyan; YU Miao

doi:10.19978/j.cnki.xmsy.2025.03.11

Abstract：Miscellaneous meal refers to the by-product from oil crops after extraction,including rapeseed meal,cottonseed meal,peanut meal and sunflower seed meal.It has high yield and low price,and is rich in protein,fat,and minerals,which make it a valuable unconventional feedstock.However,the high levels of anti-nutritional factors present such as crude fiber,tannins,phytic acid and thioglycoside in miscellaneous meal not only impede the digestion and absorption of nutrients but also have toxicological effects,severely constraining the feed utilization of miscellaneous meal.With the advancement and widespread adoption of biotechnological approaches in animal feed production,fermentation of feed raw materials offers a distinctive advantage.Microbial fermentation facilitates the reduction of anti-nutrition factors in miscellaneous meal and breaks down indigestible or poorly utilized components into readily absorbable small molecules,enhancing digestion and utilization efficiency of animals.Currently,lactic acid bacteria,bacillus,yeast,and mold are the predominant microorganisms employed in the fermentation of miscellaneous meals.Fermentation also generates valuable metabolites,providing a rich source of probiotics for animals.Reasonable utilization of miscellaneous meal not only save conventional feed resources,alleviate the shortage of domestic feed resources and the situation of"human and animal competition for food",but also address environmental pollution caused by waste discharge.Miscellaneous meal has broad application prospects in animal production.This paper reviews the nutritional value of miscellaneous meal,changes in nutritional components and anti-nutritional factors before and after fermentation,as well as the application effect of fermented feed in broiler production.It also summarizes the current challenges in the utilization of miscellaneous meal,in order to provide theoretical basis for the application of fermented miscellaneous meal in broiler production.