CAJ | 학술논문

选取鸭疫里默氏菌血清1型和2型菌株各6株进行毒力比较，结果发现不同菌株的毒力略有差异。选择毒力较强的鸭疫里默氏菌血清1型和2型菌株各3株制备灭活油乳剂疫苗，免疫6日龄鸭后14 d 以同血清型菌株进行攻毒保护试验，RAf63株和 RAf34株制备的疫苗免疫保护率最高，是理想的制苗用菌株。
선취압역리묵씨균혈청1형화2형균주각6주진행독력비교，결과발현불동균주적독력략유차이。선택독력교강적압역리묵씨균혈청1형화2형균주각3주제비멸활유유제역묘，면역6일령압후14 d 이동혈청형균주진행공독보호시험，RAf63주화 RAf34주제비적역묘면역보호솔최고，시이상적제묘용균주。
The comparison tests of virulence of 12 Riemerella anatipestifer strains (serotype 1 and 2,6 strains for each)were carried out. The virulence of different strains were different. 6 more virulent strains (3 strains for each) were selected to prepare inactivated oil-emulsion vaccines. 6 days old ducklings were vaccinated for 14 days and then challenged with the same serotype strains. The immune protective rates of the vaccine prepared by strains RAf63 and RAf34 were the highest. The strains RAf63 and RAf34 were proved suitable for vaccine strains.