Research on Mechanism and Application of DUAN-NAI-AN on Controlling Weaned Piglet Diarrhea  

“断奶安”防治仔猪腹泻的作用机理及应用研究

作　　者：王玲[1] 蒲万霞[1] 扎西英派[2] 孟晓琴[2] 郭福存[1] 李金善[1] 邓海平[3] 

机构地区：[1]中国农业科学院兰州畜牧与兽药研究所新兽药工程重点开放实验室,甘肃兰州730050 [2]甘肃农业大学动物医学院,甘肃兰州730070 [3]西北师范大学生命科学学院,甘肃兰州730070

出　　处：《Animal Husbandry and Feed Science》2009年第1期36-39,46,共5页动物与饲料科学（英文版）

基　　金：甘肃省科技厅推广应用项目(5QS054-A81-153-18);兰州市科技计划项目(04-1-20);中央级公益性科研院所专项资金项目(BRF060303);甘肃省自然科学基金项目(0710RJZA080)~~

摘　　要：[ Objective] The study aimed to explore the function mechanism of microbial ecological agent DUAN-NAI-AN on controlling weaned piglet diarrhea. E Method] DUAN-NAI-AN was given to the weaned piglets by oral administration and its effects on diarrhea rate, growth performance, in- testinal microflora, pH values of different parts of the intestine and intestinal mucosal morphology were observed. [ Result] DUAN-NAI-AN could im- prove the growth performance of weaned piglets by increasing the growth rate and phase weight gain, showing as higher livability, average daily gain and daily feed intake as well as lower diarrhea rate with 19.24% decline by contrast to the control. In addition, DUAN-NAI-AN could keep the intestinal mucosal mechanical barrier and normal digestive function by strengthening intestinal resistance and thus enhance the intestinal mucosal im- mune level. It could also decrease the proportion of potential pathogens and their toxicity effects inside the intestine to help the piglets transfer to and then maintain the dynamic balance of intestinal microflora in a very short period, and it also showed a trend of decreasing the pH value of piglet in- testinal contents. [ Conclusion] DUAN-NAI-AN is an effective microbial ecological agent for the control of weaned piglet diarrhea.[ Objective] The study aimed to explore the function mechanism of microbial ecological agent DUAN-NAI-AN on controlling weaned piglet diarrhea. E Method] DUAN-NAI-AN was given to the weaned piglets by oral administration and its effects on diarrhea rate, growth performance, in- testinal microflora, pH values of different parts of the intestine and intestinal mucosal morphology were observed. [ Result] DUAN-NAI-AN could im- prove the growth performance of weaned piglets by increasing the growth rate and phase weight gain, showing as higher livability, average daily gain and daily feed intake as well as lower diarrhea rate with 19.24% decline by contrast to the control. In addition, DUAN-NAI-AN could keep the intestinal mucosal mechanical barrier and normal digestive function by strengthening intestinal resistance and thus enhance the intestinal mucosal im- mune level. It could also decrease the proportion of potential pathogens and their toxicity effects inside the intestine to help the piglets transfer to and then maintain the dynamic balance of intestinal microflora in a very short period, and it also showed a trend of decreasing the pH value of piglet in- testinal contents. [ Conclusion] DUAN-NAI-AN is an effective microbial ecological agent for the control of weaned piglet diarrhea.

关 键 词：DUAN-NAI-AN Microbial ecological agent Weaned piglets DIARRHEA Growth performance Intestinal microflora 

分 类 号：S828.5[农业科学—畜牧学]