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Prevalence and haemato-biochemical alterations associated with Strongyloides papillosus infection among Awassi breed of sheep in Mosul, Iraq

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Abstract

Strongyloides papillosus infections in sheep is associated with great economic setbacks. The purpose of this study was to determine the prevalence, haematological and biochemical alterations associated with Strongyloides papillosus infections among Awassi breed sheep in Mosul, Iraq. This research was conducted between September and December of 2021, involving a total of 255 apparently healthy sheep of different ages and sexes from 20 different flocks. Blood and faecal samples were collected accordingly. Faecal samples were subjected to the simple floatation and the formalin-ethyl acetate concentration techniques for the detection of S. papillosus using appropriate helminthological keys. Blood samples were subjected to haematological and biochemical analyses for the evaluation of haemato-biochemical indices. Strongyloides papillosus was detected in 135 of the sheep examined, representing a 52.94% prevalence with 95% confidence interval of 46.82–58.98. Young sheep were 2.92 times more likely to be infected compared to adult sheep, while male were 2.39 times more likely to be infected compared to female. The mean corpuscular volume, total white blood cell counts, neutrophil, basophil, eosinophil, lymphocyte, and monocyte counts of infected sheep differed significantly (P < 0.05) from that of the uninfected sheep. Glucose, triglyceride, blood urea nitrogen, total protein, serum glutamic-oxaloacetic transaminase, and serum glutamic pyruvic transaminase levels were the biochemical indices that were significantly altered in S. papillosus infected sheep, when compared to the uninfected ones. Strongyloides papillosus was prevalent among the Awassi breed of sheep in Mosul, Iraq, and the infection is associated with significant haematological and biochemical changes. Adoption and implementation of a national Strongyloidosis-integrated control strategies in Iraq are recommended.

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Correspondence to Shola David Ola-Fadunsin.

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Alkateb, Y.N.M., Abdullah, D.A., Alobaidy, A.A.A. et al. Prevalence and haemato-biochemical alterations associated with Strongyloides papillosus infection among Awassi breed of sheep in Mosul, Iraq. Comp Clin Pathol 32, 225–230 (2023). https://doi.org/10.1007/s00580-022-03430-5

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