Idris A B, Bounous D I, Goodwin M A, Brown J, Krushinskie E A
Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens 30602, USA.
Avian Dis. 1997 Apr-Jun;41(2):388-91.
Comparisons were made between microscopic lesion scores (MLSs) and gross lesion scores (GLSs) in sections from small intestine of broilers during three routine coccidiosis screenings. The duodenal and jejunal GLS were determined and recorded by different evaluators. During each screening, 2-cm sections of duodenum and jejunum were collected, and sections of intestine were then scored using a microscopic lesion scoring system. No correlation between MLS and GLS was observed in duodenum in two out of three coccidiosis screenings, and no correlation was observed between MLS and GLS in jejunum in three out of three screenings. Our findings demonstrate that, if used alone in coccidiosis screening, GLSs can underestimate infections and may not provide a true representation of the magnitude of Eimeria maxima infection within broiler flocks.
在三次常规球虫病筛查期间，对肉鸡小肠切片的微观病变评分（MLS）和大体病变评分（GLS）进行了比较。十二指肠和空肠的GLS由不同的评估人员确定并记录。在每次筛查中，收集2厘米长的十二指肠和空肠切片，然后使用微观病变评分系统对肠切片进行评分。在三次球虫病筛查中的两次中，十二指肠的MLS和GLS之间未观察到相关性，在三次筛查中的三次中，空肠的MLS和GLS之间均未观察到相关性。我们的研究结果表明，如果单独用于球虫病筛查，GLS可能会低估感染情况，并且可能无法真实反映肉鸡群中巨型艾美耳球虫感染的程度。
