تعیین میزان شیوع و بررسی عوامل خطر ضایعات محوطه دهانی گوسفند و بز در جنوب ایران

نوع مقاله: مقاله کامل

نویسندگان

1 گروه علوم درمانگاهی دانشکده دامپزشکی دانشگاه شهید باهنر کرمان، کرمان، ایران

2 گروه بهداشت و مواد غذایی دانشکده دامپزشکی دانشگاه شهید باهنر کرمان، کرمان، ایران

3 گروه علوم درمانگاهی دانشکده دامپزشکی دانشگاه شهید باهنر کرمان، کرمان

چکیده

ضایعات محوطه دهانی یکی از مؤثرترین عوامل بر روی سلامت و راندمان تولید است. هدف از انجام این پژوهش ارزیابی شیوع این ضایعات شامل بیماری‌‌های دندان، استخوان‌‌های فک و بافت‌‌های نرم، در بین نشخوارکنندگان کوچک در منطقه جنوب ایران و بررسی تاثیر عوامل خطر این دسته از بیماری‌‌ها شامل سن، جنس، گونه، نژاد، جیره، اندازه و نحوه مدیریت دامپروری‌‌ها است. شاخص‌‌های بررسی میزان شیوع بیماری‌‌های محوطه دهانی با دامنه اطمینان 95 درصد برآورد شد. برای بررسی ارتباط بین شیوع و عوامل خطر پیشنهاد شده، از روش رگرسیون لجستیک تک متغیره و چند متغیره استفاده گردید. نتایج ما نشان داد که از 1342 دام مورد بررسی به‌‌ترتیب 523 (39 درصد)، 123 (2/9 درصد) و 81 راس (شش درصد) دارای ضایعات بالینی دندانی، استخوان‌‌های فک و بافت‌‌های نرم هستند. از عوامل خطر مورد مطالعه بین جنس، نژاد‌‌های بز، گروه‌‌های سنی، مدیریت دامپروری و جیره با میزان شیوع، رابطه معنی‌‌داری داشت. شانس ابتلا به بیماری‌‌های دندانی با افزایش سن نیز افزایش قابل توجهی نشان داد و در بز نژاد پاکستانی نسبت به نژاد سانن بیشتر بود. در بررسی لجستیک بیماری‌‌های دندان، شانس ابتلا در جنس ماده نسبت به نر 7/1 برابر بود و در دامپروری‌‌های با مدیریت سنتی و تغذیه با جیره‌‌های علوفه‌ی به‌‌ترتیب 5/3 و 5/2 برابر دامپروری‌‌های با مدیریت صنعتی و جیره‌‌های دانه‌ی-علوفه‌ی برآورد شد. در نظر گرفتن عوامل فوق از طریق آگاه‌‌سازی دامداران در جهت جوان‌‌سازی دام‌‌ها، انتخاب نژاد مناسب و نظارت دقیق بر نحوه مدیریت و نوع جیره می‌‌تواند نقش عمده‌ی در کاهش هزینه‌‌ها و افزایش بازدهی اقتصادی واحد‌‌های دامپروری داشته باشد.

کلیدواژه‌ها


عنوان مقاله [English]

Assessment of the prevalence and risk factors for disorders of oral cavity in sheep and goats in south of Iran

نویسندگان [English]

  • A.S. Samimi 1
  • Balal Sadeghi 2
  • J. Tajik 1
  • Amin Fayyaz 3
1 Department of Clinical Sciences, School of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran.
2 Department of Food Hygiene, School of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran.
3 Department of Clinical Sciences, School of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran/
چکیده [English]

Oral disorders can negatively influence the health and productive efficiency of livestock. This study was performed to evaluate the prevalence for soft tissue, jawbone and dental disorders of small ruminants in South of Iran and analyze the effect of risk factors including age, sex, species, breed, diet, herd size, herd management and diet on these disorders. Data were analyzed by 95% confidence interval for prevalence index of oral disorders. To evaluate the associations between suggested risk factors and oral disorders, univariate and multivariate logistic regression analyses were used. Based on our results, clinical disorders of tooth, jawbone and soft tissue were observed in 523 (39%), 123 (9.2%) and 81 (6%) subjects, respectively, of 1342 sheep and goats. Several factors including age, sex, herd management and diet were significantly associated with disorders of oral cavity in sheep and goats. The odds of oral diseases increased as the age of animals increased. Moreover, Pakistani goats were more likely than Saanen breed to develop oral disorders. In logistic regression analysis of dental disorder, females had 1.7 times higher risk than males. The odds of traditional herds and roughage diet were 3.5 and 2.5 times more than dairy herds and roughage-concentrate diets in tooth disorders, respectively. Therefore, it is important to inform the herders that choosing the proper breed and maintaining a young flock as well as good management and diet can decrease costs and improve economic efficiency.

کلیدواژه‌ها [English]

  • Oral cavity disorders
  • risk factors
  • Sheep and goats
  • South of Iran

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