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Hashemi, M, Bakhshesh, M, Manavian, M. (1401). Bovine Viral Diarrhea Virus and Bovine Herpes Virus-1 in Dairy Cattle Herds in Fars Province, Southern Iran: Seroprevalence and Evaluation of Risk Factors. سامانه مدیریت نشریات علمی, 77(5), 1621-1629. doi: 10.22092/ari.2022.356904.1941
M Hashemi; M Bakhshesh; M Manavian. "Bovine Viral Diarrhea Virus and Bovine Herpes Virus-1 in Dairy Cattle Herds in Fars Province, Southern Iran: Seroprevalence and Evaluation of Risk Factors". سامانه مدیریت نشریات علمی, 77, 5, 1401, 1621-1629. doi: 10.22092/ari.2022.356904.1941
Hashemi, M, Bakhshesh, M, Manavian, M. (1401). 'Bovine Viral Diarrhea Virus and Bovine Herpes Virus-1 in Dairy Cattle Herds in Fars Province, Southern Iran: Seroprevalence and Evaluation of Risk Factors', سامانه مدیریت نشریات علمی, 77(5), pp. 1621-1629. doi: 10.22092/ari.2022.356904.1941
Hashemi, M, Bakhshesh, M, Manavian, M. Bovine Viral Diarrhea Virus and Bovine Herpes Virus-1 in Dairy Cattle Herds in Fars Province, Southern Iran: Seroprevalence and Evaluation of Risk Factors. سامانه مدیریت نشریات علمی, 1401; 77(5): 1621-1629. doi: 10.22092/ari.2022.356904.1941

Bovine Viral Diarrhea Virus and Bovine Herpes Virus-1 in Dairy Cattle Herds in Fars Province, Southern Iran: Seroprevalence and Evaluation of Risk Factors

Archives of Razi Institute
مقاله 14، دوره 77، شماره 5، آذر و دی 2022، صفحه 1621-1629    اصل مقاله (547.75 K)
نوع مقاله: Original Articles
شناسه دیجیتال (DOI): 10.22092/ari.2022.356904.1941
نویسندگان
M Hashemi* 1؛ M Bakhshesh2؛ M Manavian1
1Shiraz Branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Shiraz, Iran
2Department of Animal Virology, Research and Diagnosis, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
چکیده
Bovine viral diarrhea virus (BVDV) and bovine herpes virus-1 (BHV-1) have been known as the major pathogens with significant economic consequences on the cattle industry worldwide, including in Iran. In this cross-sectional study, the seroprevalences of BVDV and BHV-1 and their associated risk factors were investigated in dairy cattle farms of Fars province, Iran, where with 0.4 million head of cattle, mainly crossbred, is ranked the first in cow population in southern Iran. A total number of 420 cattle in 18 herds were randomly selected from three geographical regions (140 samples from each of the north, central, and south regions) and their serum samples were analyzed to detect antibodies to these viruses using a commercially available enzyme-linked immunosorbent assay kit. Chi-square test and logistic regression analyses were employed to investigate associations between risk factors and the seroprevalence of viruses. The overall seroprevalence rates for BVDV and BHV-1 were estimated at 91.67% and 77.87% at the herd level and 55.48% and 39.76% at the animal level, respectively. The only significant factor associated with the seroprevalence of both viruses at the herd level was found to be the literacy level of farmers (P<0.05). The significant risk factors for both viruses in cattle were identified as geographical region, age, and breeding method by the univariate analysis (P<0.05), while gender and farming system were determined as risk factors only for BHV-1 (P<0.001). A significant relationship of concurrent infection with BVDV and BHV-1 (φ=0.268, P<0.001) was recorded, and 28.6% of sera had antibodies to both viruses. The results of the present study demonstrated that BVDV and BHV-1 had a wide distribution in dairy cattle herds in southern Iran and highlighted the need for intensive surveillance and control strategies to reduce the risk of the spread of these viruses.
کلیدواژه‌ها
BVDV؛ BHV-1؛ Risk factors؛ Southern Iran
عنوان مقاله [English]
ویروس های اسهال گاوی و هرپس گاوی نوع 1 در گاوداری های شیری استان فارس، جنوب ایران: میزان شیوع سرمی و فاکتورهای خطر
چکیده [English]
ویروسهای اسهال ویروسی گاوی (BVDV) و ویروس هرپس گاوی نوع1(BHV-1) به عنوان مهم ترین عوامل بیماری زایی شناخته شده اند که پیامد اقتصادی قابل توجهی برای صنعت گاو در سراسر جهان از جمله ایران دارند. در این مطالعه مقطعی، شیوع BVDV و BHV-1 و عوامل خطر مرتبط با آن در مزارع گاو شیری استان فارس که با داشتن حدود 0.4 میلیون راس گاو و گوساله مقام اول در جمعیت گاو در جنوب ایران را دارد، بررسی شد. روش ها: تعداد 420 گاو در 18 گله و در سه منطقه جغرافیایی (140 نمونه در هر یک از مناطق شمال، مرکز و جنوب استان) به طور تصادفی انتخاب و نمونه های سرمی آنها برای شناسایی آنتی بادی های موجود بر علیه این ویروس ها با روش الیزا مورد آزمایش قرار گرفت. برای بررسی ارتباط بین عوامل خطر و خطر ویروس ها از آزمون آماری مربع کای و رگرسیون لجستیک استفاده شد. یافته ها: شیوع سرمی کل BVDV و BHV-1 در سطح گله به ترتیب 91.67٪ و 77.87٪ و در سطح دام 55.48٪ و 39.76٪ بود. تنها عامل مهم مرتبط با شیوع هر دو ویروس در سطح گله، سطح سواد کشاورزان بود (p < 0.05). با تجزیه و تحلیل تک متغیره مشخص شد که عوامل خطرساز معنی دار (p < 0.05) برای هر دو ویروس شامل منطقه جغرافیایی، سن و روش جفتگیری بوده (p < 0.05)، در حالی که جنس و سیستم پرورش به عنوان عوامل خطر فقط برای BHV-1 تعیین شد (p < 0.001). ارتباط معنی داری از عفونت همزمان BVDV و BHV-1 ((φ = 0.268, p <0.001 ثبت شد و 28.6٪ سرم ها دارای آنتی بادی برای هر دو ویروس بودند. نتیجه گیری: مطالعه حاضر نشان داد که BVDV و BHV-1 توزیع گسترده ای در گله های گاو شیری در جنوب ایران دارد و به لزوم برقراری برنامههای کنترل و مراقبت به منظور کاهش خطر انتشار این ویروس ها اشاره دارد.
کلیدواژه‌ها [English]
ویروس اسهال گاوی, ویروس هرپس گاوی نوع 1, فاکتورهای خطر, جنوب ایران
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