断奶仔猪腹泻的原因与防止

断奶仔猪腹泻的原因与防止摘口口要☐☐断奶仔猪腹泻在养猪业中危害居首，导致仔猪成活率降低，饲料报酬降低，生长缓慢，生长发育停滞：同时由于腹泻导致体质下降，免疫力降低，对疾病的抵抗力减弱，容易继发感染其他疾病，严重威胁养猪业的健康发展。本文从生理、病原、饲料、应激、以及环境等因素出发，分析了早期断奶仔猪腹泻发生的原因，从免疫、饲料营养、饲养管理等角度提出了一些综合性预防措施，对提高断奶仔猪生产性能的现实指导意义。关键词：仔猪：早期断乳：腹泻：防治1ABSTRACTDiarrhea of weaned piglets is the most harmful in pig industry,which leads to lowersurvival rate,lower feed reward,slow growth and stagnant growth.At the same time,diarrhealeads to lower physical fitness,lower immunity and weakened resistance to diseases,which iseasy to be infected with other diseases,seriously threatening the healthy development of pigindustry.This paper analyzes the causes of diarrhea in early weaned piglets from physiological,pathogenic,feed,stress and environmental factors,and puts forward some comprehensivepreventive measures from the perspectives of immunity,feed nutrition and feeding management,which is of practical guiding significance for improving the production performance of weanedpiglets.Key words:Piglets;Early weaning;Diarrhea;prevent and cure目口口录摘口口要..ABSTRACT......11目口口录11i第一章引言..……1第二章引发仔猪腹泻的因数2.1生理性因数2.1.1消化生理2.1.2胃肠酸性低2.1.3体温调节…22.2病原性因素32.3饲料性因素….32.3.1饲料中植物蛋白所占的比例过高.32.3.2脂肪过高…32.3.3饲料中含有抗营养因子….32.3.4饲料中缺乏某些营养因子.32.3.5饲料中纤维素含量过高32.4应激因素…2.5环境因素.第三章仔猪早期断奶腹泻的表现4第四章仔猪腹泻的防治措施。。。。54.1预防…54.1.1疫苗接种..54.1.2补酸化剂…54.1.3补酶制剂….54.1.4提高早期断奶仔猪的免疫力4.1.5补铁.….54.1.6提高氨基酸含量、降低粗蛋白含量.64.1.7合理加工处理饲料原料..64.1.8减少应激.…..64.1.9加强环境控制。.64.2治疗74.2.1抗病原消炎74.2.2补液.74.2.3理肠健胃….74.2.4增强机体的免疫能力.7第五章结论8第六章参考文献.…9IV