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Pathomorphological investigations on the incidence of chronic liver lesions and their association with welfare in White Pekin ducks

机译:白皮鸭慢性肝脏病变发生率及其与福利的关系的病理形态学研究

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Pathomorphological investigations were carried out in a flock of 7150 White Pekin ducks (Anas platyrhynchos domestica) at the age of 51-68 weeks. Morbidity and mortality rates were determined. The overall mortality during the 18-week period of the study was 710 (9.93%) ducks. Eighty five carcasses referred in groups of 7-10 at 2-week intervals were submitted to gross anatomy examinations and macroscopic lesions were described. Microscopic lesions were detected in 68 (80%) of 85 liver samples. Lesionsspecific for amyloidosis were found out in 48 (56.48%) cases, specific for both amyloidosis and cirrhosis - in 14 (16.47%) cases and 6 samples (7.05%) exhibited neoplastic growths classified as cholangiomas. According to these results, amyloidosis was identified as the most frequent cause of morbidity due to chronic liver lesions in White Pekin ducks, followed by amyloidosis associated with cirrhosis and last but not least, cholangioma.
机译:在51-68周龄的7150只白北京鸭(Anas platyrhynchos domestica)中进行了病理形态学研究。确定发病率和死亡率。在研究的18周期间,总死亡率为710只(9.93%)鸭子。以7-10个为一组,每2周间隔转诊的85个car体进行了大体解剖检查,并描述了肉眼可见的病变。在85个肝样本中有68个(80%)检测到微观病变。在48(56.48%)例中发现了对淀粉样变性有特异性的病变,对淀粉样变性和肝硬化都有特异性-在14(16.47%)例中发现了6个样品(7.05%)表现为肿瘤性生长,被归类为胆管瘤。根据这些结果,淀粉样变性病被确定为最常见的发病原因,归因于白皮鸭的慢性肝损伤,其次是淀粉样变性病与肝硬化,最后但并非最不重要的是胆管瘤。

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