南方农业学报2017，Vol.48Issue(6)：1113-1118,6.DOI:10.3969/j.issn.2095-1191.2017.06.28
PRRSV阳性血清驯化对后备母猪繁殖性能的影响
Effects of PRRSV positive serum acclimation on reproductive performance of gilts
摘要
Abstract
[Objective]Effects of porcine reproductive and respiratory syndrome virus(PRRSV) positive serum accli-mation and vaccine immunization on immune antibody level and reproductive performance of gilts were analyzed, in order to provide reference for large-scale farms to select the proper immunity method to control porcine reproductive and respira-tory syndrome(PRRS). [Method]Gilts of 90 days were immunized with serum acclimation and vaccine immunization re-spectively. Blood samples were obtained from vena cava anterior to detect antibody level. Meanwhile, indexes of reproduc-tive performance were measured, including conception rate of the firstborn, delivery rate, litter size, number born alive of litter, weak piglet rate, stillbirth rate, deformity and mummy rate of gilts. [Result]Serum antibody positive rates of serum domestication group and vaccine immunization group reached 100.00% and 99.30% respectively. Antibody level dispersion of vaccine immunization group was low and its antibody level was concentrated. Conception rate of the firstborn(96.79% vs 97.11%), delivery rate(88.55% vs 88.96%), litter size(11.26 vs 11.41), number born alive of litter(10.3 vs 10.5), weak piglet rate(3.61% vs 3.32%), stillbirth rate(2.96% vs 2.99%), deformity and mummy rate(4.35% vs 4.13%) of gilts in serum domestication group and vaccine immunization group were close. The difference between the two groups was in-significant(P>0.05). The performances of the two groups were both better than that of control. [Conclusion]It is suitable way to immune pig with serum acclimation to prevent and control PRRSV when there is only a serotype PPRSV prevalent in pig farm. This vaccine method not only enhances the reproduction performance of gilts, but also costs less and operates easily.关键词
后备母猪/猪繁殖与呼吸综合症病毒(PRRSV)/血清驯化/疫苗免疫/抗体水平/繁殖性能Key words
gilt/porcine reproductive and respiratory syndrome virus(PRRSV)/serum acclimation/vaccine immu-nization/antibody level/reproductive performance分类
农业科技引用本文复制引用
张宁,刘德清,洪绍峰,郭旋,梁强,蓝常力,蒋振南,吴志君..PRRSV阳性血清驯化对后备母猪繁殖性能的影响[J].南方农业学报,2017,48(6):1113-1118,6.基金项目
国家现代农业产业技术体系广西生猪产业创新团队建设项目(nycytxgxcxtd-03-15) （nycytxgxcxtd-03-15）
南宁市西乡塘区科学研究与技术开发计划项目(201710317) （201710317）
