Parasitic helminths of the digestive system of wild boars bred in captivity

This study aimed to identify the parasites that inhabit the digestive system of Sus scrofa scrofa from a commercial breeding facility in southern Brazil, and reports the first occurrence of Trichostrongylus colubriformis in wild boars. The gastrointestinal tracts of 40 wild boars from a commercial breeding facility were collected and individualized during slaughter in a cold-storage slaughterhouse. Out of this total, 87.5% were parasitized by the helminths Ascaris suum,Trichostrongylus colubriformis, Oesophagostomum dentatum and Trichuris suis. T. colubriformis presented a prevalence of 45%, mean intensity of 28.4 and mean abundance of 12.8. The data from this study showed that T. colubriformis not only has a capacity to develop in the small intestines of wild boars, but also adapts well to animals raised in captivity, thus representing a possible cause of economic loss in commercial wild boar farming.

本研究旨在鉴定巴西南部某商业养殖场内指名亚种野猪（Sus scrofa scrofa）消化道内寄生的寄生虫，并首次报道了蛇形毛圆线虫（Trichostrongylus colubriformis）在野猪体内的感染情况。研究人员采集了该商业养殖场40头野猪在冷藏屠宰厂屠宰过程中获取的胃肠道样本，并进行个体化处理。总样本中87.5%的个体被猪蛔虫（Ascaris suum）、蛇形毛圆线虫、齿食道口线虫（Oesophagostomum dentatum）和猪鞭虫（Trichuris suis）这四种蠕虫寄生。其中蛇形毛圆线虫的感染率为45%，平均感染强度为28.4，平均感染丰度为12.8。本研究数据表明，蛇形毛圆线虫不仅可在野猪小肠内完成发育，还能很好地适应圈养环境，因此可能成为商业野猪养殖业经济损失的潜在诱因。