Molecular study on parasitic nematodes infection in the abomasum of sheep in Ilam, Iran

سال انتشار: 1400
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 48

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شناسه ملی سند علمی:

JR_VRFAN-12-2_014

تاریخ نمایه سازی: 27 آبان 1402

چکیده مقاله:

Parasitic nematodes of ovine abomasum are of economic and hygienic importance throughout the world and Iran. This study was aimed to evaluate molecular identity and species diversity of parasitic nematodes in the abomasum of slaughtered sheep in Ilam, Iran. In this study, a total number of ۲۴۰ of abomasa were randomly collected from the slaughtered sheep at industrial slaughterhouses in Ilam in all seasons between ۲۰۱۷ and ۲۰۱۸. The abomasum content and abomasal mucosa were removed and washed. The collected nematodes were morphologically identified. The genomic DNA was extracted and a ۳۰۰ bp-fragment-length from internal transcribed spacer ۲ ribosomal ribonucleic acid (ITS۲-rRNA) gene was amplified. Overall prevalence was ۶۶.۷۰% (۱۶۰/۲۴۰). Five species of four genera of nematodes including Marshallagia marshalli (۴۳.۷۰%), Ostertagia circumcincta (۱۵.۵۰%), Parabronema skrjabini (۵.۰۰%), M. occidentalis (۲.۵۰%), and Haemonchus contortus (۰.۰۴%) were identified. Ostertagia circumcincta and H. contortus were found to be different in two nucleotides. There was no nucleotide difference between M. marshalli and M. occidentalis. This study revealed a significant prevalence of parasitic nematodes in sheep abomasum and species diversity of Trichostrongylid nematodes in the region.

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نویسندگان

Maryam Nazarbeigy

Department of Pathobiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran

Mohammad Yakhchali

Department of Pathobiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran

Fazel Pourahmad

Department of Microbiology, Faculty of Veterinary Medicine, Ilam University, Ilam, Iran

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