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Iranian Journal of Parasitology، جلد ۶، شماره ۴، صفحات ۲۳-۳۲
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عنوان انگلیسی Biopathologic Characterization of Three Mixed Poultry Eimeria spp. Isolates
چکیده انگلیسی مقاله Background: Coccidiosis of domestic fowl, caused by species of the Genus Eimeria , is responsi­ble for important economic losses in poultry production. Because different species and/or strains can vary in pathogenicity and other biological parameters, their precise characteriza­tion is important for epizootiological studies. Methods: Fifty samples from litter, whole intestinal tract and feces were collected from poul­try houses located in different provinces of Iran. One hundred twenty male day-old broi­ler chicks were challenged with three selected isolates. Data on weight gain, Food Conversion Ratio (FCR), food intake, lesion scoring and shedding of oocysts per gram of feces were rec­orded and analyzed by the Duncan's test. Results: In all treatments, the challenged groups had statistically significant lower weight gain than that of unchallenged control group. Isolate three caused the lowest weight gain and food intake and the worst lesion score as well as FCR. Despite originating from close geographi­cal regions for isolates 1 and 2, the difference in biopathologic factors may be either due to different proportion of identified species or the different pathogenicity of the species present in the isolates. Conclusion: The results highlight the importance of considering various species of Eimeria in designing the preventive, control and treatment strategies to prevent coccidiosis in different regions of Iran. Further characterization of each isolate would be the next step to provide a basis for coccidiosis research with well-characterized local isolates.
کلیدواژه‌های انگلیسی مقاله Eimeria,Poultry coccidiosis,Iran
نویسندگان مقاله f عرب خزایلی | f arabkhazaeli
department of parasitology, faculty of veterinary medicine, university of tehran, iran and engineering research institute, ministry of agriculture, tehran, iran

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

s نبیان | s nabian
department of parasitology, faculty of veterinary medicine, university of tehran, iran

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

m modirsaneii | m modirsaneii
department of animal and poultry health and nutrition, faculty of veterinary medicine, university of tehran, iran

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

منصوری | b mansoori
department of animal and poultry health and nutrition, faculty of veterinary medicine, university of tehran, iran

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

s رهبری | s rahbari
department of parasitology, faculty of veterinary medicine, university of tehran, iran

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

نشانی اینترنتی http://ijpa.tums.ac.ir/index.php/ijpa/article/view/201
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