Slaughterhouse prevalence of Parabronema skrjabini associated with pathologic lesions in small ruminant

Gastrointestinal parasites (GIN) cause weight loss and reduced productions especially in small ruminant especially in subclinical parasitic infections. Severity of infection depends on geographical condition and climate area. Information about various parasites can be effective in better diagnosis and treatment. Parabronema skrjabini is one of a common abomasal nematode. No study is present on the pathologic findings and hypobiotic larvae of this nematode in the veterinary literature. Therefore, this study was designed to determine the prevalence of parasite, pathologic lesions and arrested larval stage in sheep and goats in Kerman province. In the present study, the abomasums of 1189 slaughtered sheep and goats were selected randomly and examined grossly for detection of nematodes. 807 (67.87%) out of 1189 infected abomasums with different nematodes that 307 (32/12%) samples showed pure contamination with Parabronema skrjabini. 247out of 307 abomasums were randomly selected for tissue digestion with pepsin and histopathologic investigation. No larvae were found in digested tissues. In pathologic study, the mucosal erosions and ulcers, thickening of abomasum mucosal later and increasing mucus secretion were grossly observed. Histopathologic study showed hyperplasia of mucosal cells, decreasing of parietal cells, inflammatory reaction including lymphocytes and eosinophils infiltration associated with different sections of adult nematode in the abomasal glands. Also, granulomatous inflammation was found around some nematode sections.