微生物添加剂对青贮高粱主要营养成分、抗营养因子及消化率的影响  

Effect of microbial additives on main nutrient components,anti-nutritional factors and digestibility of silage sorghum

作　　者：林树岩 刘通 LIN Shu-yan;LIU Tong

机构地区：[1]长春大学食品科学与工程学院,吉林长春130022

出　　处：《饲料研究》2022年第20期93-98,共6页Feed Research

摘　　要：研究旨在探究微生物添加剂对青贮高粱主要营养成分、抗营养因子及消化率的影响。在高粱青贮过程中添加不同的微生物添加剂,共设4个处理组:对照组(不添加任何菌剂)、植物乳杆菌组(仅添加植物乳杆菌)、布氏乳杆菌组(仅添加布氏乳杆菌)、复合菌组(添加植物乳杆菌+布氏乳杆菌混合菌液),每组设置3个重复,菌剂添加量均为5×10^(5)CFU/g,对照组喷洒等量蒸馏水代替。室温(25~30℃)环境避光青贮70 d后取样,测定其营养成分、抗营养因子及消化率等指标。结果显示:各微生物处理组的青贮高粱粗蛋白含量均显著高于对照组。对照组可溶性碳水化合物含量和pH值显著高于各微生物处理组(P<0.05)。各微生物处理组青贮高粱的乳酸菌含量均显著高于对照组(P<0.05)。各微生物处理组霉菌含量、单宁含量显著低于对照组(P<0.05)。复合菌组青贮高粱的单宁含量显著低于植物乳杆菌组和布氏乳杆菌组(P<0.05)。与对照组相比,各微生物处理组青贮高粱的植酸含量显著降低(P<0.05)。除24 h干物质降解率和中性洗涤纤维降解率,微生物处理组的降解率均显著高于对照组(P<0.05)。研究表明,复合菌组(植物乳杆菌+布氏乳杆菌)的青贮高粱饲喂价值较高。The study was to investigate the effect of microbial additives on main nutrients, anti-nutritional factors and digestibility of silage sorghum. Different microbial additives were added in the process of sorghum silage, and there were four treatment groups: Control group(without any bacteria agent), Lactobacillus plantarum group(Lactobacillus plantarum only), Lactobacillus brucei group(Lactobacillus brinell only), compound bacterium group(plant Lactobacillus + brinell mixed Lactobacillus bacteria liquid), with three replicates in each group. The adding quantity of bacterium agent in each group were all 5×10^(5)CFU/g, and distilled water with the same amount was sprayed in control group. After 70 d of silage at room temperature(25~30 ℃), the samples were taken to determine the nutritional composition, anti-nutritional factors and digestibility. The results showed that the crude protein content of each microbial treatment group was significantly higher than that of control group. The soluble carbohydrate content and pH value in control group were significantly higher than those in microbial treatment groups(P<0.05). The content of lactic acid bacteria in silage sorghum in all microbial treatment groups was significantly higher than that in control group(P<0.05). The content of mold and tannin in microbial treatment groups were significantly higher than those in control group(P<0.05). The tannin content of complex bacteria group was significantly lower than that of Lactobacillus plantarum group and Lactobacillus brucei group(P<0.05).Compared with control group, the phytic acid content in all microbial treatment groups was significantly decreased(P<0.05). Except for 24 h dry matter degradation rate and neutral detergent fiber degradation rate, the degradation rate of microbial treatment group was significantly higher than that of control group(P<0.05). The study indicates that the compound group(Lactobacillus plantarum + Lactobacillus brucei) has higher feeding value of silage sorghum.

关 键 词：高粱青贮 微生物添加剂 营养价值 抗营养因子 瘤胃降解率 

分 类 号：S816[农业科学—饲料科学]