Avery Brent P, Rajić Andrijana, McFall Margaret, Reid-Smith Richard J, Deckert Anne E, Irwin Rebecca J, McEwen Scott A
Public Health Agency of Canada, Laboratory for Foodborne Zoonoses, Guelph, Ontario N1G 5B2.
Can J Vet Res. 2008;72(2):137-42.
Information regarding antimicrobial use in sheep is scarce. In 2001, a scrapie surveillance program was initiated in Alberta that also provided a mechanism for collecting other sheep health data including antimicrobial use information between April 2001 and April 2002. A major objective of this study was to describe antimicrobial use in the Alberta sheep industry. This was done by obtaining qualitative antimicrobial use information from all flocks (n = 212) providing cull ewes to the program using a brief, primarily flock-level, questionnaire. The respondents' flocks represented 13.6% of the total provincial flock in Alberta in 2001. By a substantial amount, the most frequent method of administering antimicrobials was through injection followed by in-feed, oral (liquids, pills, boluses), and in-water routes, respectively. Drug-specific use data were collected for injectable antimicrobials only, with the most commonly used antimicrobial classes being penicillins followed by tetracyclines. Producers rarely treated some or all of their flock with injectable antimicrobials after discovering an individual sick animal. Adult sheep were the most common age group treated with injectable antimicrobials and the most frequent reason for injectable antimicrobial use was mastitis followed by respiratory problems. This study provides some initial insight regarding antimicrobial use in Alberta sheep flocks. However, collection of more drug-specific data (drug type, dose/concentration, duration of treatment) for noninjectable routes of administration should be conducted in future studies. Assessing antimicrobial use in other sectors of the Alberta sheep industry (feedlots) and other provinces across Canada would also be beneficial.
关于绵羊抗菌药物使用的信息很少。2001年，艾伯塔省启动了一项痒病监测计划，该计划还提供了一个收集其他绵羊健康数据的机制，包括2001年4月至2002年4月期间的抗菌药物使用信息。本研究的一个主要目标是描述艾伯塔省绵羊产业中抗菌药物的使用情况。这是通过使用一份简短的、主要针对羊群层面的问卷，从向该计划提供淘汰母羊的所有羊群（n = 212）中获取定性的抗菌药物使用信息来完成的。受访者的羊群占2001年艾伯塔省全省羊群总数的13.6%。大量使用抗菌药物的最常见方法是注射，其次是混饲、口服（液体、药丸、大丸剂）和饮水途径。仅收集了注射用抗菌药物的特定药物使用数据，最常用的抗菌药物类别是青霉素，其次是四环素。生产者在发现个别患病动物后，很少用注射用抗菌药物治疗部分或全部羊群。成年绵羊是接受注射用抗菌药物治疗的最常见年龄组，注射用抗菌药物使用的最常见原因是乳腺炎，其次是呼吸道问题。本研究提供了一些关于艾伯塔省绵羊群抗菌药物使用的初步见解。然而，未来的研究应收集更多非注射给药途径的特定药物数据（药物类型、剂量/浓度、治疗持续时间）。评估艾伯塔省绵羊产业其他部门（饲养场）和加拿大其他省份的抗菌药物使用情况也将是有益的。
