体外法研究银杏叶提取物对山羊瘤胃纤维降解的影响  

作　　者：李世霞[1] 王洪荣[1] 王梦芝[1] 徐爱秋[1] 曹恒春[1] 

机构地区：[1]扬州大学动物科学与技术学院

出　　处：《中国饲料》2008年第12期7-9,共3页China Feed

基　　金：国家自然科学基金项目"反刍动物瘤胃微生物氨基酸组成调控机制研究"(30571344)

摘　　要：以3只安装永久性瘤胃瘘管的山羊为试验动物,以纯淀粉、纤维素和酪蛋白为底物,银杏叶提取物在瘤胃培养液底物的浓度设为0(对照组)、0.3%、0.6%、0.9%、1.2%5个水平,利用人工瘤胃体外培养法,通过对瘤胃液pH值、微生物蛋白、纤维素降解率及与纤维素降解相关的酶等指标的测定,探讨银杏叶提取物对纤维素降解的影响。结果表明:银杏叶提取物增加了微生物蛋白的产量,提高了纤维素的降解率,增加了滤纸纤维素酶、羧甲基纤维素酶和木聚糖酶的活性。Three goats fitted with rumen cannula were used to determine the effects of ginaton on rumen fermentation in vitro.The concentration of ginaton in culture solution was designed as follows：0,0.3 % ,0.6 % ,0.9 % and 1.2 %.The objectives of the study were to determine the effects of ginaton on cellulose degradation and the parameters of rumen including pH ,microbial protein, cellulose degradability and cellulase.The results showed that the yield of microbial protein, and cellulose degradability ,activities of filter paper cellulose, carboxymethyl cellulose and xylanase due to adding ginaton.

关 键 词：银杏叶提取物 微生物蛋白 纤维素酶 体外培养 

分 类 号：S816.7[农业科学—饲料科学]