鸵鸟大肠杆菌病的综合防治

鸵鸟大肠杆菌病是非洲鸵鸟的一种常见病，各种龄期的鸵鸟均可发生，尤其是幼龄小鸟，往往出现较高的发病率和死亡率，给鸵鸟生产带来很大经济损失。本文简述某鸵鸟场综合防治鸵鸟大肠杆菌病的有效措施，供同行参考。一、发病情况１９９７年３～４月间，由于连续的低温阴雨，初见刚出壳不久的雏鸟出现蛋黄吸收不良，食欲减退，进而有的瘦弱而死。接着，在１５～６０天龄的小鸟出现腹泻，有的还表现咳嗽。发病小鸟食欲不振，有的以死亡告终。在此期间，部分产蛋母鸟出现产蛋明显下降，甚至停产，有的产出畸形蛋。据统计，发病鸟数８６只，死亡…     

Aerobic bacterial isolates in horses in a university hospital, 1986-1988

Bacterial isolations were reviewed from equine trachea, guttural pouch, uterus, wounds, abscesses, blood, synovial fluid, and abdominal fluid submitted to the Clinical Bacteriology Laboratory of the School of Veterinary Medicine at the University of Montreal for aerobic bacterial culture from 1986 to 1988. Of the 733 samples submitted, 324 (44%) were positive for bacterial growth, and 233 antimicrobial sensitivity tests were performed. Seventy-six percent of all positive samples yielded one bacterial species and two were isolated from 22% of positive samples. Streptococcus zooepidemicus, Escherichia coli, and Actinobacillus spp. were isolated from 39%, 18%, and 15% of the samples, respectively.

Bacterial growth was most common from guttural pouches, wounds and abscesses, and transtracheal washes (TTW), but was less common from uterus, blood, abdominal fluid, and synovial fluids. Streptococcus zooepidemicus was the most common bacterium recovered from guttural pouches, TTW, uterus, and wounds and abscesses. Escherichia coli predominated in abdominal fluids, blood, and synovia. Bacterial sensitivities to common antimicrobials are presented.