CAJ | 학술논문

为研究木薯渣在锦江黄牛瘤胃中的降解规律,选用3头装有永久性瘤胃瘘管的健康成年锦江黄牛,采用尼龙袋法测定木薯渣干物质(DM)、有机物质(OM)、粗蛋白质(CP)、中性洗涤纤维(NDF)和酸性洗涤纤维(ADF)在瘤胃中的消失率,计算瘤胃降解参数及有效降解率. 结果显示:(1)木薯渣的纤维性和非纤维性碳水化合物含量较高,分别达到35.7%和51.2%;(2)木薯渣在瘤胃内前36 h的降解速率较快,之后减慢,并逐渐趋于平稳;(3)木薯渣DM、OM、NDF、ADF、CP的有效降解率分别为63.13%、63.05%、46.55%、25.39%和32.49%,其瘤胃可利用性高于苔草和苜蓿. 以上结果表明,木薯渣营养丰富,可利用性高,具有较高的饲用价值.
위연구목서사재금강황우류위중적강해규률,선용3두장유영구성류위루관적건강성년금강황우,채용니룡대법측정목서사간물질(DM)、유궤물질(OM)、조단백질(CP)、중성세조섬유(NDF)화산성세조섬유(ADF)재류위중적소실솔,계산류위강해삼수급유효강해솔. 결과현시:(1)목서사적섬유성화비섬유성탄수화합물함량교고,분별체도35.7%화51.2%;(2)목서사재류위내전36 h적강해속솔교쾌,지후감만,병축점추우평은;(3)목서사DM、OM、NDF、ADF、CP적유효강해솔분별위63.13%、63.05%、46.55%、25.39%화32.49%,기류위가이용성고우태초화목숙. 이상결과표명,목서사영양봉부,가이용성고,구유교고적사용개치.
To study the ruminal degradability of cassava dregs in Jinjiang cattle,three healthy adult Jinjiang cattles with permanent rumen fistula were used to determine the disappearance rate, digestion kinetics,and effective disappear-ance of dry matter (DM),organic matter (OM),crude protein (CP),neutral detergent fiber (NDF)and acid detergent fiber (ADF)of cassava dregs in the rumen by the nylon bag technology.The results showed that:(1)Cassava dregs contained more fiber(35.7%)and non-fiber(51.2%)carbohydrates.(2)The disappearance rate of cassava dregs were faster before 36 hours in the rumen,then decreased and leveled off gradually at last. (3)The effective disappearance of DM,OM,CP,NDF and ADF of cassava dregs were 63.13%,63.05%,46.55%,25.39% and 32.49%,respectively.The rumen availability of cassava dregs was higher than that of carex and alfalfa hay.These results indicated that cassava dregs were nutritious and had high feeding value.