添加剂对全株燕麦青贮饲料发酵品质和有氧稳定性的影响  

The Effects of Additives on Fermentation Quality and Aerobic Stability of Whole-plant Oat Silage

作　　者：朱九刚 张健 邵涛 董志浩 李君风 唐露 冉启凡 刘秦华 ZHU Jiu-gang;ZHANG Jian;SHAO Tao;DONG Zhi-hao;LI Jun-feng;TANG Lu;RAN Qi-fan;LIU Qin-hua(College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China;Chongqing Academy of Animal Science, Institute of Prataculture, Rongchang Chongqing Province 402460, China)

机构地区：[1]南京农业大学草业学院,江苏南京210095 [2]重庆畜牧科学院草业研究所,重庆荣昌402460

出　　处：《草地学报》2020年第6期1756-1761,共6页Acta Agrestia Sinica

基　　金：中国博士后科学基金面上项目(2019M651865);重庆市自然科学基金面上项目(cstc2019jcyj-msxmX0066)资助。

摘　　要：为了提高全株燕麦(Avena sativa L.)的饲料化程度,本研究以无添加剂组为对照,探究了添加植物乳杆菌(LP,1×10-5 cfu·g^-1)、糖蜜(ML,0.4%)、食用油(OL,1%)、丙酸(PA,0.4%)、茶多酚(TP,0.4%)以及茶多酚和糖蜜组合(TP+ML,0.4%+0.4%)对全株燕麦贮饲料发酵品质和有氧稳定性的影响。结果表明,与对照组相比,LP,ML,PA以及TP+ML添加组增加了乳酸含量(P<0.05),减少了好氧性细菌数量(P<0.05),提高了发酵品质。有氧暴露阶段,TP+ML添加组的有氧稳定性最佳,超过48 h。综上所述,TP+ML添加组提高了发酵品质和有氧稳定性,可作为青贮添加剂生产优质全株燕麦青贮饲料。In order to improve the application of whole-plant oat(Avena sativa L.)as feed,this study evaluated the effects of different additives,Lactobacillus plantarum(LP,1×10-5 cfu·g^-1 FM),molasses(ML,0.4%),edible oil(OL,1%),propionic acid(PA,0.4%),tea polyphenols(TP,0.4%)and a combination of tea polyphenols and molasses(TP+ML,0.4%+0.4%)at fresh matter basis,on the fermentation quality and aerobic stability of fresh whole-plant oat silage.The results showed that,compared with the control,additions of LP,ML,PA,and TP+ML significantly increased the content of lactic acid(P<0.05),and decreased the number of aerobic bacteria(P<0.05),indicating better fermentation quality.On the contrary,OL and TP groups decreased lactic acid content and increased pH,indicating poorer fermentation quality.During aerobic exposure,the TP+ML group had the best aerobic stability,which lasted for more than 48 hours.In summary,the TP+ML group had the best aerobic stability and better fermentation quality.Therefore,a combination of the tea polyphenols and molasses were recommended as silage additives to produce high-quality whole-plant oat silage.

关 键 词：燕麦 青贮 添加剂 发酵品质 有氧稳定性 

分 类 号：S512.6[农业科学—作物学]