摘要
试验旨在探究添加植物乳杆菌(LP)、纤维素酶(CE)以及二者混合添加对紫花苜蓿青贮品质的影响。试验将LP与CE添加剂量各设置4个水平,分别为LP添加量0、3、5、7 mg/kg,CE添加量0、25、50、75 mg/kg,共计16个处理,每个处理3个重复。青贮60 d后进行营养品质及发酵指标的测定,采用隶属函数法对青贮紫花苜蓿营养品质及发酵指标进行综合评价。结果表明:与CE0处理相比,CE75处理的可溶性碳水化合物(WSC)含量显著提高(P<0.05)。在不同的LP添加水平下,苜蓿青贮中的酸性洗涤纤维(ADF)和中性洗涤纤维(NDF)含量随着CE添加量的增加而减少(P<0.05)。不同CE添加水平下,LP5处理的pH值均显著低于LP0、LP7处理(P<0.05)。隶属函数值结果显示,LP5+CE75处理组隶属函数值最高,为0.729。研究表明,添加LP和CE紫花苜蓿青贮的发酵品质和营养成分具有积极效果,同时添加5 mg/kg LP和75 mg/kg CE对紫花苜蓿青贮的效果最佳。
The purpose of this experiment was to investigate the effects of Lactobacillusplantarum(LP),cellulase(CE)and their mixture on the quality of alfalfa silage.In the experiment,LP and CE dosage were set at four levels,which were 0,3,5,7 mg/kg for LP and 0,25,50,75 mg/kg for CE,respectively.There were 16 treatments in total,and each treatment had three replicates.After 60 days of silage,the nutritional quality and fermentation index of alfalfa silage were measured,and the nutritional quality and fermentation index of alfalfa silage were comprehensively evaluated by membership function method.The results showed that the soluble carbohydrate(WSC)content of CE75 treatment was significantly higher than that of CE0 treatment(P<0.05).The content of acid detergent fiber(ADF)and neutral detergent fiber(NDF)in alfalfa silage decreased with the increase of CE addition at different levels of LP addition(P<0.05).Under different levels of CE,the pH value of LP5 treatment was significantly lower than that of LP0 and LP7 treatment(P<0.05).The results of membership function value showed that the highest membership function value of LP5+CE75 treatment group was 0.729.The study indicates that adding LP and CE to alfalfa silage has positive effects on fermentation quality and nutritional components,and adding 5 mg/kg LP and 75 mg/kg CE to alfalfa silage has the best effect.
作者
王国郡
郭楠
祖晓伟
冯琳
王新民
智健飞
李明
高立杰
WANG Guo-jun;GUO Nan;ZHU Xiao-wei;FENG Lin;WANG Xin-min;ZHI Jian-fei;LI Ming;GAO Li-jie
出处
《饲料研究》
CAS
北大核心
2024年第8期108-113,共6页
Feed Research
基金
河北省草业产业技术体系饲草资源开发创新团队项目(项目编号:HBCT2023160202)
优质苜蓿加工利用关键技术集成研究与应用(项目编号:V1624258467900)。
关键词
苜蓿
植物乳杆菌
纤维素酶
青贮品质
alfalfa
Lactobacillusplantarum
cellulase
silage quality
