培养液中不同来源肽摄取规律的研究  

Uptake Patterns of Different Peptides in the Culture by Rumen Microorganisms

作　　者：程茂基[1] 卢德勋[2] 王洪荣[2] 王岗[2] 赵秀英[2] 张海鹰[2] 郭文华[2] 

机构地区：[1]安徽农业大学畜牧水产学院,合肥230036 [2]内蒙古畜牧科学院,呼和浩特010030

出　　处：《安徽农业大学学报》2004年第1期82-86,共5页Journal of Anhui Agricultural University

基　　金：安徽省优秀青年基金资助项目。

摘　　要：利用体外批次培养研究了大豆肽、玉米肽和瘤胃肽的摄取规律。结果表明,随着培养时间的延长,3种肽的摄取量与摄取率均显著增加(P<0 01或P<0 05),而摄取速率却显著降低(P<0 01);当培养液中肽含量增加时,3种来源肽的摄取量显著增加(P<0 01或P<0 05),摄取速率显著提高(P<0 01或P<0 05),而摄取率却显著下降(P<0 05)。对于3种不同肽源来说,培养初期3种肽的摄取量和摄取率没有明显差异(P>0 05),而摄取速率却存在差异,其中瘤液肽的摄取速率显著高于大豆肽和玉米肽。培养中后期肽含量较高时,瘤胃液肽的摄取量和摄取率显著高于大豆肽(P<0 05)和玉米肽(P<0 01);肽含量较低时,瘤胃液肽的摄取量和摄取率显著高于玉米肽(P<0 05),但与大豆肽差异不显著(P>0 05)。结果表明,肽的来源和结构不同,其摄取规律也有异。The uptake patterns of different peptides in the culture by rumen microorgaisms were explored.The results showed that the amount of peptides uptake was increased significantly (P<0.01 or P<0.05) with incubation time extending,but the rates of peptides uptake was decreased significantly (P<0.01).When peptides concentration was increased in the incubation,the amount of peptides uptake and rates of peptides uptake were increased significantly (P<0.01 or P<0.05),but the proportion of peptides degradation was decreased significantly (P<0.05).The amount,proportion and rate of rumen peptides uptake were higher than those of soybean protein peptide (P<0.05) and corn protein peptide (P<0.01).The results suggested that the rate of peptides uptake might be different when they were from different proteins resources.

关 键 词：肽 来源 摄取规律 摄取量 摄取速率 瘤胃微生物 培养液 反刍动物 蛋白质营养 

分 类 号：S852.21[农业科学—基础兽医学]