CAJ | 학술논문

以结实期的扁蓿豆Medicago ruthenica为青贮原料,在实验室条件下采用单因素完全区组试验设计,调制扁蓿豆青贮饲料,研究商品菌制剂LaLsIL Dry(LD)和硫酸盐制剂Siloguard(SG)对扁蓿豆青贮饲料发酵品质和体外消失率的影响.结果表明:扁蓿豆直接青贮的丁酸含量较低,V-Score评分等级为良好;添加乳酸菌制剂未能改善扁蓿豆青贮饲料的发酵品质和提高其体外消失率;SG0.2%处理组的乳酸含量、粗蛋白含量和体外干物质消失率显著高于对照(P<0.05),氨态氮占总氮比例显著低于对照(P<0.05),说明SG0.2%处理可提高乳酸菌的发酵能力,降低了不良微生物对蛋白的降解,保存了大量可供动物体消化利用的营养成分;原料草的体外干物质和粗蛋白消失率显著高于青贮饲料(P<0.05).
이결실기적편숙두Medicago ruthenica위청저원료,재실험실조건하채용단인소완전구조시험설계,조제편숙두청저사료,연구상품균제제LaLsIL Dry(LD)화류산염제제Siloguard(SG)대편숙두청저사료발효품질화체외소실솔적영향.결과표명:편숙두직접청저적정산함량교저,V-Score평분등급위량호;첨가유산균제제미능개선편숙두청저사료적발효품질화제고기체외소실솔;SG0.2%처리조적유산함량、조단백함량화체외간물질소실솔현저고우대조(P<0.05),안태담점총담비례현저저우대조(P<0.05),설명SG0.2%처리가제고유산균적발효능력,강저료불량미생물대단백적강해,보존료대량가공동물체소화이용적영양성분;원료초적체외간물질화조단백소실솔현저고우청저사료(P<0.05).
To determine the effects of two commercial inoculums on ensiling characteristics and in vitro digestibility of Ruthenia medic silage, an experiment was conducted with three treatments and a CK and with three replicates using a randominized complete block design. The three treatments were LaLsIL Dry(LD) 0.001%, SG 0.1%)and SG 0.2%.The materials were fermented for 90 days and then the quality of silages was assayed. The results showed that content of butyric acid was low, and direct ensiled russian fenugreek was considered as excellent by the classification standard of V-score. No significant change in fermentation quality and digestibility in vitro was found in the treatment with LD. Lactic acid, crude protein and IVDMD of the treatment with SG 0.2% increased (P<0.05), but NH3-N decreased (P<0.05). The results indicated that SG enhanced the ferment ability of lactic acid bacteria, and depressed other microbe to decompose crude protein. It seems that digestibility of dry matter and crude protein in vitro decreased after fermentation.