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Seroprevalence Investigation of Newcastle Disease in Rural Poultries of the Northern Provinces (Golestan, Gilan, and Mazandaran) of Iran | ||
| Archives of Razi Institute | ||
| مقاله 6، دوره 74، شماره 4، اسفند 2019، صفحه 365-373 اصل مقاله (185.45 K) | ||
| نوع مقاله: Original Articles | ||
| شناسه دیجیتال (DOI): 10.22092/ari.2017.116669.1175 | ||
| نویسندگان | ||
| A. Alemian1؛ S. A. Pourbakhsh2؛ A. Shoushtari* 2؛ H. Keyvanfar1 | ||
| 1Department of Microbiology, Science and Research Branch, Islamic Azad University, Tehran, Iran | ||
| 2Department of poultry Research and Diagnosis, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran | ||
| چکیده | ||
| Rural poultry farming is common in the Northern provinces. Similar to commercial poultry, rural poultry is susceptible to most infectious diseases. In addition, by increasing the density of poultry farming, the probability of disease incidences has been increased. Newcastle disease is the most highly infectious disease which is endemic in Iran and causes outbreaks among commercial and rural poultry every year. The present study aimed to investigate the prevalence and virus circulation of Newcastle disease among rural poultry in Northern provinces of Iran. In the current study, 70 villages in 3 provinces (20, 30, and 20 villages in Mazandaran, Golestan, and Gilan, respectively) and a total of 1,374 birds (600, 400, and 374 birds in Mazandaran, Golestan, and Gilan, respectively) were sampled. Each village was regarded as an epidemiological unit. In the present study, birds of 67 (96%) villages were positive (presence of antibodies against Newcastle disease virus), including 28 (93.3%), 19 (95%), and 20 (100%) villages in Golestan, Mazandaran, and Gilan, respectively. Moreover, out of 1,374 birds, 616 (45%) of them were seropositive against Newcastle disease virus with 242 (41%), 159 (39.8%), and 211 (56%) samples in Mazandaran, Golestan, and Gilan, respectively. According to the results of the current study, the seroprevalence rate was reported to be high in both villages and birds. Such a high seroprevalence rate was indicative of the continuous exposure of the rural poultry to Newcastle virus and high virus circulation rate in the mentioned provinces which could result in the dissemination of the disease to commercial farms. Consequently, the implementation of proper control and care programs (e.g., vaccination of native poultry) can facilitate the reduction of Newcastle disease prevalence. | ||
| کلیدواژهها | ||
| Seroprevalence؛ Newcastle disease؛ Poultry؛ Northern provinces؛ HI | ||
| عنوان مقاله [English] | ||
| بررسی شیوع سرمی بیماری نیوکاسل در ماکیان بومی استانهای شمالی(گلستان، گیلان و مازندران) ایران | ||
| چکیده [English] | ||
| پرورش طیور بومی در بین استانهای شمالی در بیشتر روستاها رونق دارد. طیور بومی نیز مانند طیور صنعتی در معرض بیشتر بیماریهای عفونی قرار داشته و با افزایش تراکم و گسترش پرورش طیور، احتمال رخداد بیماریها نیز افزایش یافته است. از جمله مهمترین این بیماریها، بیماری نیوکاسل میباشد. این بیماری در کشور ما بومی است و هر ساله موجب بروز طغیانهایی در بین طیور صنعتی و بومی کشور میگردد. این مطالعه با هدف بررسی وضعیت شیوع و گردش ویروس در بین طیور بومی استانهای شمالی انجام گرفت. در این مطالعه در سه استان از 70 روستا (استان مازندران 20 روستا، استان گیلان 20 روستا و استان گلستان 30 روستا) و 1374 پرنده ( استان مازندران 600 پرنده، استان گلستان 400 پرنده و استان گیلان 374 پرنده) نمونه برداری شد. در این مطالعه تعداد 67 روستا (96%) سرم مثبت بودند ( استان گیلان، 28 روستا (3/93% )، استان مازندران، 19 روستا (95%) و استان گلستان 20 روستا (100% ). همچنین از مجموع 1374 پرنده تعداد 616 (45%) نمونه سرم مثبت بودند (استان مازندران، 246 نمونه (41%)، استان گلستان، 159 نمونه (8/39%) و استان گیلان، 211 نمونه (56%). بر اساس نتایج این مطالعه، میزان شیوع سرمی هم در سطح روستاها و هم در سطح پرندهها بسیار بالا میباشد. این میزان بالای شیوع سرمی نشان دهنده مواجهه متعدد طیور بومی این استانها با ویروس نیوکاسل و گردش بالای ویروس در این استانها میباشد و میتوانند باعث گسترش بیماری به مزارع صنعتی شوند. باانجام و اجرای برنامههای مناسب مراقبت و کنترل بیماری از جمله واکسیناسیون طیور بومی جهت کاهش میزان شیوع ضروری است. | ||
| کلیدواژهها [English] | ||
| شیوع سرمی, بیماری نیوکاسل, ماکیان, استانهای شمالی, HI | ||
| مراجع | ||
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