关键词: 猪传染性胃肠炎； 卵黄抗体； 防治

Abstract: There is no effective treatment for the transmissible gastroenteritis of pigs，so this paper investigates the development of transmissible gastroenteritis virus yolk antibody to provide technical support for the prevention and treatment of the disease. The inactivated vaccine of ransmissible gastroenteritis virus was used to immunize healthy commercial hens of hy ?line variety brown at the age of 90?140 day，14 days after the third immunization，the yolk antibody was extracted from the eggs of highly immunized chickens，ELISA antibody titer detection and attack protection test. The results showed that the antibody titer can reach 1∶256，and maintained for 3 months. 120 days after the third immunization，the antibody titer drops to 1∶128. The results of the attack protection test on 1?day?old three ?way crossbred piglets showed that the morbidity and mortality rate of healthy piglets not immunized with yolk antibody reached 100% ，while the mortality rate of the yolk antibody immune group is 0 and the protection rate reached 100% ，indicating that the yolk antibody can effectively protect piglets against the attack of the virus of transmissible gastroenteritis of swine.

Key words: the transmissible gastroenteritis of pigs； egg yolk antibody； prevention