草业学报2025，Vol.34Issue(3)：123-133,11.DOI:10.11686/cyxb2024179
乳酸菌对全株玉米青贮发酵品质和霉菌毒素含量的影响
Effects of different lactic acid bacteria strains on fermentation quality and mycotoxin contents of whole-plant corn silage
摘要
Abstract
The study aimed to evaluate the effects of Lactobacillus paracasei LS2,Lactiplantibacillus plantarum S6-2,and Lactobacillus casei GD2-1 on the fermentation quality and mycotoxin concentrations in corn silage.Fungal infected(FI)or non-fungal infected(NFI)whole-plant corn was ensiled with:1)no treatment(CON),2)L.paracasei(LS2),3)L.plantarum(S6-2),or 4)L.casei(GD2-1)for 180 days.The results indicated that inoculation with GD2-1 significantly reduced the ammonia nitrogen contents,and all three lactic acid bacterial strains significantly increased the water-soluble carbohydrate contents in the NFI treatments(P<0.05).Inoculation with S6-2 significantly reduced the ammonia nitrogen contents,and inoculation with LS2 and S6-2 increased the water-soluble carbohydrate content in the FI treatments(P<0.05).The LS2 inoculated silages showed the highest acetic acid contents.Fungal infection significantly increased the concentrations of deoxynivalenol and zearalenone in fresh corn.The detoxification effects of lactic acid bacteria were mycotoxin-dose dependent.The inoculants did not affect the zearalenone concentration in FI and NFI silages and deoxynivalenol in NFI silages.Inoculating LS2,S6-2,and GD2-1 significantly(P<0.05)decreased the aflatoxin B1 concentration in FI silages,and S6-2 significantly(P<0.05)decreased the deoxynivalenol concentration in FI silages.In summary,inoculating the three lactic acid bacteria reduced the ammonia-nitrogen concentration and increased the water-soluble carbohydrates and acetic acid contents during the ensiling,improving the fermentation quality of the whole-plant corn silage.The three strains did not significantly affect the zearalenone contents of FI and NFI silages,but reduced the concentration of aflatoxin B1 in FI silages,and S6-2 reduced the deoxynivalenol concentration in the FI silages.关键词
全株玉米青贮/乳酸菌/霉菌毒素/发酵品质Key words
whole-plant corn silages/lactic acid bacteria/mycotoxins/fermentation quality引用本文复制引用
梁宇成,张晓雯,邵涛,王文博,原现军..乳酸菌对全株玉米青贮发酵品质和霉菌毒素含量的影响[J].草业学报,2025,34(3):123-133,11.基金项目
国家自然科学基金项目(32271773)资助. （32271773）
