【作者】 徐然； 陈鹏飞； 周静； 杨富裕； 梁超；

【Author】 XU Ran;CHEN Peng-fei;Yang Fu-yu;ZHOU Jing;Institute of Grassland Science,China Agricultural University;Grassland Science Department,Sichuan Agricultural University;

【机构】 中国农业大学草地研究所； 四川农业大学草业科学系；

【摘要】 按4×4两因子试验设计,在普那菊苣中添加麸皮和糖蜜进行青贮。麸皮作为一个因子,添加量为0、20%、25%和30%（占鲜重）,分别用A,B,C,D表示;糖蜜为另一个因子,添加量为0、2%、5%和8%（占鲜重）,分别用a,b,c,d表示。共16个处理,青贮后60 d测定相关指标。结果表明:添加剂均显著降低了青贮料的pH值、NH₃-N、酸性洗涤纤维、乙酸含量,显著增加了乳酸含量;除了Ca处理外,其余处理均显著降低了青贮料的中性洗涤纤维含量;随着麸皮添加量的增加,丙酸含量逐渐降低。本试验表明,2种添加剂均不同程度地改善了普那菊苣青贮饲料的发酵品质,且以麸皮添加量为25%、糖蜜添加量为5%时效果最佳。更多还原

【Abstract】 A two way factorial trail was designed to study on technique aspects of ensiling Puna Chicory（PC） mixed with wheat bran and molasses.Wheat bran（WB） was added at levels of 0,20%,25%and30%（fresh basis） respectively to PC which was untreated（A,B,C,D）,or treated with molasses at the levels of 0,2%,5%and 8%（a,b,c,d）.There were 16 treatments in total.Chemical analyses were carried out after 60 d.The results indicated that all the additives decreased its pH value,NH₃-N,acid detergent fiber and acetic acid content,increased lactic acid content significantly（P < 0.05）;all the treatments,except Ca,decresed the neutral detergent fiber significantly（P < 0.05）;the content of propionic acid decresed with the increasing levels of WB.The experiment indicated that the two additives improved the fermentation quality of puna chicory silage,and the fermentation quality of puna chicory treated with 25%wheat bran + 5%molasses was the best.更多还原