CAJ | 학술논문

为考察日粮添加益康XP和酵母培养物(YC)对山羊瘤胃发酵参数和十二指肠氨基酸(AA)流量的影响,采用3×3拉丁方试验设计,选用3头装有永久性瘤胃瘘管和十二指肠瘘管的健康湘东黑山羊(平均体重为(15±2.5) kg)为试验动物,饲喂同一种基础日粮以及分别添加0.25%益康XP和YC的试验日粮.结果表明,日粮添加益康XP有降低瘤胃pH值和NH_3-N浓度的趋势;而添加YC有增加瘤胃pH值和NH_3-N浓度的趋势;添加益康XP和YC日粮,瘤胃TVFA含量分别下降20.61%和3.98%(P＞0.05),而对瘤胃内TVFA、各单个VFA含量及其所占比例、乙酸/丙酸均无显著影响(P＞0.05).添加益康XP和YC对山羊十二指肠AA流量无显著影响(P＞0.05),采食添加YC饲粮的山羊十二指肠AA流量高于采食添加益康XP饲粮的山羊.结果显示,YC对于调节山羊瘤胃发酵、增加过瘤胃蛋白含量有一定的积极作用.
위고찰일량첨가익강XP화효모배양물(YC)대산양류위발효삼수화십이지장안기산(AA)류량적영향,채용3×3랍정방시험설계,선용3두장유영구성류위루관화십이지장루관적건강상동흑산양(평균체중위(15±2.5) kg)위시험동물,사위동일충기출일량이급분별첨가0.25%익강XP화YC적시험일량.결과표명,일량첨가익강XP유강저류위pH치화NH_3-N농도적추세;이첨가YC유증가류위pH치화NH_3-N농도적추세;첨가익강XP화YC일량,류위TVFA함량분별하강20.61%화3.98%(P＞0.05),이대류위내TVFA、각단개VFA함량급기소점비례、을산/병산균무현저영향(P＞0.05).첨가익강XP화YC대산양십이지장AA류량무현저영향(P＞0.05),채식첨가YC사량적산양십이지장AA류량고우채식첨가익강XP사량적산양.결과현시,YC대우조절산양류위발효、증가과류위단백함량유일정적적겁작용.
This experiment was conducted to study the effect of dietary supplementation of Yikang XP and yeast culture(YC)on rumen fermentation parameters and duodenal flow of amino acid(AA)in growing goats.Three goats((15±2.5)kg)were fitted with ruminal and duodenal cannulae and allocated to three dietary treatments in a 3×3 Latin square design.The goats were fed a same basic ration and supplemented with Yikang XP and YC both at 0.25% level.The results showed that there was an increasing tendency of ruminal pH value and NH_3-N concentration when supplemented with YC,and a decreasing tendency of ruminal pH value and NH_3-N concentration was observed when supplemented with Yikang XP.The content of total volatile fatty acid(TVFA)decreased by 20.61% and 3.98%(P＞0.05)when supplemented with Yikang XP and YC,respectively.There were no significantly(P＞0.05)differences of the content of TVFA,individual VFA content and its ratio,and the ratio of acetic acid to propionate acid when supplemented with Yikang XP and YC.The dietary supplementation of Yikang XP and YC did not affect(P＞0.05)the duodenal flow of AA,the duodenal flow of AA for the YC treatment was higher than that for the Yikang XP treatment.In conclusion,the dietary supplementation of YC had positive effects on regulation of rumen fermentation and promotion of rumen microbial protein synthesis.