بهداشت و بیماری‌های عفونی دام

بهداشت و بیماری‌های عفونی دام

بررسی علل باکتریایی بیماری‌های تنفسی گوسفند‌های کشت و صنعت لرستان

نوع مقاله : مقاله پژوهشی

نویسندگان
محمد نظرپور 1
ایرج کریمی 2
1 دانش‌آموختۀ کارشناسی ارشد باکتری‌شناسی، گروه پاتوبیولوژی، دانشکدۀ دام‌پزشکی، دانشگاه شهرکرد، شهرکرد، ایران
2 دانشیار، گروه پاتوبیولوژی، دانشکده دامپزشکی، دانشگاه شهرکرد، شهرکرد، ایران.
10.22034/jahid.2024.713632
چکیده
زمینه و هدف: گوشت قرمز غنی‌ترین و مهم‌ترین منبع پروتئین مورد نیاز بشر است. یکی از مهم‌ترین منابع تأمین گوشت قرمز در کشور گوشت گوسفند است. امروزه به‌دلیل وجود محدودیت‌هایی در پرورش گوسفند و ازطرفی تقاضای فراوان گوشت گوسفند در جامعه، مسئلۀ کاهش ضایعات کشتارگاهی و بهینه‌سازی پرورش از مسائل مهم و ارزشمند در پرورش این حیوان باارزش است. مشکلات تنفسی، یکی از مهم‌ترین دلایلِ ضررهای اقتصادی گوسفدداری‌هایند. عفونت‌های تنفسی می‌تواند ناشی از عوامل باکتریایی، انگلی، قارچی و ویروسی ایجاد شود. این پژوهش به‌منظور ارائۀ تابلویی از عوامل باکتریایی ایجادکنندۀ عفونت ریوی و تنفسی گوسفندان مجتمع کشت و صنعت لرستان طراحی و انجام شد.
مواد و روش­ها: برای منظور تعداد 200 نمونه سوآب از بینی گوسفندان با علائم تنفسی و آب‌ریزش بینی از مجتمع کشت و صنعت لرستان گرفته شد. نمونه‌های گرفته‌شده در محیط‌های آگار خون، مک کانکی و آگار PPLO در شرایط هوازی و نیز بی‌هوازی کشت داده شد و عوامل جداسازی‌شده با روش‌های بیوشیمیایی و مولکولی تعیین هویت شدند.
یافته­ها: از مجموع 200 نمونۀ بررسی‌شده، به ترتیب 34، 23، 18 و 12 مورد آلودگی حائزاهمیت به باکتری‌های منهمیا همولیتیکا، پاستورلا مولتوسیدا، اشریشیا کلی و استافیلوکوکوس اورئوس داشتند. تعداد 133 نمونه (5/66 درصد) آلودگی مهم باکتریایی نداشتند.
نتیجه گیری: نتیجه‌گیری شد که احتمال دارد 5/38درصد از مشکلات تنفسی گوسفندان کشت و صنعت لرستان، ناشی از عوامل باکتریایی باشد که لازم است در اجرای برنامه‌های کنترل و پیشگیری بیماری‌های تنفسی گوسفند در مجتمع یادشده مدنظر قرار گیرد.
کلیدواژه‌ها
منهمیا همولیتیکا
پاستورلا مولتوسیدا
استافیلوکوکوس اورئوس
اشریشیا کولی
کشت و صنعت لرستان
موضوعات

عنوان مقاله English

Investigating bacterial causes of respiratory diseases in agricultural and industrial sheep of Lorestan

نویسندگان English

Mohammad Nazarpour 1
Iraj Karimi 2
1 1. Graduate of the master of bacteriology, Department of pathobiology, Faculty of Veterinary Medicine, University of sharkard, sharkard, Iran
2 Associate Professor, Department of pathobiology, Faculty of Veterinary Medicine, University of sharkard, sharkard, Iran
چکیده English

Background and Aim: Red meat is the richest and most important source of protein needed by human. Mutton is one of the most important sources of protein in] Iran. Today, due to the limitations of sheep breeding and on the other hand, the high demand for mutton in society, the issue of reducing slaughterhouse waste and optimizing breeding is one of the most important and valuable problems in breeding of this valuable animal. The most important causes of these lesions are bacterial, viral and parasitic diseases. Among infectious diseases, lung diseases play a major role in terms of reduced conversion rate, reduced growth rate and increased catarrhal lesions, as well as due to their higher prevalence than other diseases. This study was designed and conducted to provide a picture of the causes of lung and respiratory infections in sheep of Lorestan Agro-Industrial Complex.
Materials and Methods: For this purpose of 200 swap samples were taken from the nose of sheep with respiratory symptoms and runny nose from Lorestan industrial samples were cultured on blood, McConkey and PPLO agars. Medias were placed under aerobic and anaerobic conditions and the isolated agents were identified by biochemical and molecular methods.
Results: Out of a total of 200 samples, 34, 23, 18 and 12 cases were infected with the Manhemia hemolytica, Pasteurella multocida, Escherichia coli and Staphylococcus aureus, respectively. 133 samples (66.5%) have no significant bacterial infection.
Conclusion: It is concluded that 38.5% of the respiratory problems of sheep in Lorestan Agro-Industrial Complex are may be due to bacterial agents that need to be considered in the implementation of control programs and prevention of sheep respiratory diseases in the above complex.

کلیدواژه‌ها English

sheep
Lorestan
Bacterial pulmonary lesions
bacterial examinations
PCR
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