Friday, September 16, 2022
革兰氏染色法经过乙醇脱色、复染步骤后革兰氏阳性菌()。...
Tuesday, September 20, 2022
Thursday, April 20, 2023
Tuesday, September 20, 2022
Wednesday, September 21, 2022
最常引起猪链球菌病的2型链球菌属于兰氏(Lancefield)分类法中的()群。...
Thursday, September 15, 2022
Thursday, September 22, 2022
单选题山羊传染性胸膜肺炎由()引起。A 支原体B 衣原体C 多杀性巴氏杆菌D 溶血性巴氏杆菌...
Thursday, February 15, 2024
猪繁殖与呼吸障碍综合征的主要症状?什么是高致病性猪蓝耳病?...
Thursday, September 22, 2022
Tuesday, October 3, 2023
Thursday, September 22, 2022
Thursday, September 22, 2022
Sunday, May 5, 2024
判断题评价疫苗保护率可以通过免疫抗体监测,一般认为疫苗的保护率达到50%以上,认为该疫苗的质量较好,可以有效抵御疾病的侵袭。A 对B 错...
Friday, May 19, 2023
Thursday, September 22, 2022
链球菌在自然界中广泛存在,所以猪链球菌的培养要求不高,一般培养基都能生长的十分茂盛。...
Thursday, September 22, 2022
Thursday, September 22, 2022
禽流感的传播途径有哪些?家禽的主要感染途径有哪些?(间接接触传播的媒介有哪些?)...
Thursday, September 22, 2022
Thursday, September 22, 2022
高致病性猪蓝耳病的病原监测采用什么试验方法?其与经典猪蓝耳病鉴别的原理是什么?...
Friday, September 16, 2022