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首页> 外文期刊>Environment and Ecology >Eimeria tenella induced histopathological and biochemical alterations indicating the severe susceptibility period of Rhode Island Red poultry bird.
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Eimeria tenella induced histopathological and biochemical alterations indicating the severe susceptibility period of Rhode Island Red poultry bird.

机译：艾美球虫诱导的组织病理学和生化改变表明，罗德岛红家禽的易感期很长。

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摘要

To examine the histopathological and biochemical changes of birds in different post-infection periods of Eimeria tenella, 24 coccidia-free Rhode Island Red chicks were divided into two groups. Chicks of the treated group were orally inoculated with isolated E. tenella at 106 oocyst/bird, while the control group was inoculated with inoculum buffer only and reared in cage. Four chicks of both groups were sacrificed at 24, 72 and 144 hour of post-infection period to examine the pathological (WBC, RBC count and haemoglobin percentage of blood were recorded), histological (gut, liver and kidney) and biochemical parameters (DNA, RNA, protein and alkaline phosphatase of small intestine, gut, liver and kidney). Weakness, lack of appetite, ruffled feathers, uncoordinated movements, loss of weight were apparent in treated birds which showed increasing trend with increasing post-infection period. Haemoglobin content, RBC and WBC counts were 37, 35 and 25% reduced values in treated bird. Lesions and short and bland villi were more distinct in the small intestine of 144 hour treated bird. The treated birds exhibited 30 to 37.77, 27 to 434.24, 19.5 to 20.9 and 17 to 23.46% higher DNA, RNA, protein and alkaline phosphatase than that of the control one in different tissues of treated bird which showed maximum value in the bird of 144 hour. Therefore, the results revealed that the birds were more susceptible at 144 hour period of post-infection exhibiting the high intensity of damage through pathological and biochemical alterations by E. tenella..
机译：为了检查艾美尔球虫不同感染期后禽的组织病理学和生化变化，将24只无球虫的罗德岛红小鸡分为两组。给治疗组的小鸡口服分离的大肠埃希氏菌，每只卵106卵，而对照组只接种接种缓冲液，并关在笼子里。两组分别在感染后24、72和144小时处死四只小鸡，以检查其病理（记录WBC，RBC计数和血红蛋白百分比），组织学（肠，肝和肾）和生化参数（DNA） ，小肠，肠，肝和肾的RNA，蛋白质和碱性磷酸酶）。在处理过的家禽中，无力，食欲不振，羽毛松动，动作不协调，体重减轻很明显，并且随着感染后时间的增加而呈增加趋势。处理禽只的血红蛋白含量，RBC和WBC计数降低了37％，35％和25％。在经过144小时治疗的家禽的小肠中，病变和短而平淡的绒毛更为明显。在处理过的禽类的不同组织中，处理过的禽类的DNA，RNA，蛋白质和碱性磷酸酶的含量分别比对照组高30％至37.77％，27％至434.24％，19.5％至20.9％以及17％至23.46％，而这在144只禽类中表现出最大值。小时。因此，结果表明，禽类在感染后144小时内更易感，表现出通过大肠杆菌引起的病理和生化改变而造成的高强度破坏。

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