新生凉山黑猪乳前猪瘟免疫试验探讨

Study on Immune Test against Swine Fever before Sucking for Liangshan Newborn Black Pigs

[目的]排除母源抗体对仔猪猪瘟免疫影响。[方法]仔猪出生后在吮乳前注射猪瘟兔化弱毒苗,注射后间隔不同时间令其吸吮初乳,再饲养至155 d行中和抗体测定。[结果]乳前免疫后0.5 h吮乳组免疫效果良好,经攻击猪瘟强毒,完全获得保护。[结论]新生凉山黑猪乳前猪瘟免疫法,具有一定的推广实用价值。

[ Objective] This article aimed to study the effect of depleting immune body on newborn pigs against hog cholera. [ Method] The newborn pigs were injected vaccine of hog cholera after birth but before sucking milk, and made to suck the foremilk at different time after injecting. The neutral vaccine determination was carried out after feeding to 180 days old. [ Result] The best immune effect of the group with sucking the foremilk at 0.5 h was good and absolute protection was obtained after injecting vaccine viruses of classical swine fever virus. [ Conclusion] The method of injecting vaccine into Liangshan black pigs before sucking milk had certain popularization and practical value.