ITS1-PCR based identification of chicken Eimeria species in poultry litter from Mymensingh district, Bangladesh

J Adv Vet Anim Res. 2021 Sep 20;8(3):489-493. doi: 10.5455/javar.2021.h538. eCollection 2021 Sep.

Abstract

Objectives: The purpose of this study was to determine the species composition of Eimeria circulating in Mymensingh district, Bangladesh, using Internal Transcribed Spacer 1 (ITS1) sequences in polymerase chain reaction (PCR) assay.

Materials and methods: Coccidian oocysts were isolated and sporulated in a solution containing 2% potassium dichromate from litter slurry collected from 13 commercially active broiler farms in the research region. Genomic DNA was isolated from sporulated oocysts and used to amplify the Eimeria species-specific ITS1 gene by PCR amplification. Electrophoresis of 1.5% agarose gel was used to visualize the amplified PCR products.

Results: In the study samples from Mymensingh district, Bangladesh, the presence of Eimeria brunetti, Eimeria acervulina, Eimeria necatrix, Eimeria mitis, and Eimeria tenella was identified.

Conclusions: The findings of this study may shed light on the zonal approach to chicken coccidiosis control. Additionally, it suggests that ITS1-based PCR might be used in the field to accurately identify Eimeria species.

Keywords: Coccidiosis; Eimeria species; ITS1-PCR; chicken; identification.