猪传染性萎缩性鼻炎的调查报告

Investigation Report on Intectious Atrophic Rhinitis of Swine

1975年7月至9月底,笔者在宁夏调查了来自某地区三个县的大小猪382头,共检出大小病猪40头,平均发病率10.4％(最高达26.7％)。其中临床检出“歪鼻子”猪15头,占调查数3.92％,占病猪数37.5％。调查结果表明:该地区有猪传染性萎缩性鼻炎。本病主要危害幼猪,造成鼻部变形,生长受阻。病猪体重比同龄健康猪减轻31.2％～41％。病猪鼻部变形,歪向左侧多见;病变部位主要在下鼻甲骨(占54.5％);鼻甲骨萎缩半卷至一卷的为多数(占53.7％),萎缩成空洞的少见。血清学诊断表明,阳性反应与泪斑病状一致,因此,临床“泪斑”同“歪鼻子”一样可作为初步诊断本病的临床指标。

The writer investigated 382 pigs including 3 countys of Ninxia automous region from June to september in 1975, Total forty pigs were examined to suffer from Infectious Atrophic Rhinitis(IAR), The average incidence was 10.4% (top value reached to 26.7% ),Fifeteen of 40 sick pigs appeared crooked nose symptoms which amounted to 3.92% of imvestigeting pigs and 37.5% of sick pigs, The result shows that this area existed Infectious atrophic rhinitis. IAR mainly harmed young pig. It made nose deformation and restrained growth of pig. The weight of sick pi.g lossed 31.2%—41% compared with normal pig at same age, The sick pigs nose detormated and crooked to the left side. The pathological change was mainly in the Lower turbinate bone(54.5% ), The mojority turbinate bone of sick pig shrank to half ring or one ring(53.8%). The case of shrinking to hollow hole was rare. The result of serology diagnosis manifested that the positive reaction was in accordance with atear spot' symptoms. Therefore, 'erooked nose' and atear spot' may make an offer clinical index of preliminary diagnosis infectious atrophic rhinitis.