Surveillance and Analysis of PRRS Antibodies in a Self-breeding Pig Farm
PRRS is an infectious disease caused by porcine reproductive and respiratory syndrome virus,which mainly causes dyspnea,fever,anorexia and reproductive disorders in pigs.To understand a large-scale sow farms of PRRS vaccine immunity,the author of Guangxi Wuzhou a breeding farms random postpartum sows,sows,boars,piglets,nursery piglets,a total of 258 samples,the enzyme-linked immunoadsorption test(ELISA)for samples of PRRS antibody level detection analysis.The results showed that the average positive rate was 80%,the S/P value was 1.02,the dispersion was 63%,and the overall level was good.However,there are still some differences in different stages of pigs.The positive rate and average S/P of postpartum sows,piglets and finishing pigs are low,do to reach the qualified level,and there is a certain risk of infection.It is necessary to further optimize the immune procedures,strengthen the construction of biosafety system,and improve the overall immune level.
万方数据
维普
