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首页> 外文期刊>Research Journal of Animal Sciences >The Interaction of Trypanosoma congolense and Haemonchus contortus Infections in Yankassa Sheep
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The Interaction of Trypanosoma congolense and Haemonchus contortus Infections in Yankassa Sheep

机译：扬卡萨羊中的锥虫锥虫病和捻转血矛线虫感染的相互作用

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摘要

An experimental study on dual infections with Trypanosoma congolense (Tc) and Haemonchus contortus (Hc) was conducted in 30 female Yankassa sheep aged between 12 and 25 months. Parasitological observations like prepatent period, faecal egg count, worm burden were made on animals infected with H. contortus alone and T. congolense also alone. Then one group was infected with T. congolense and one week after H. contortus infection and another group vice versa. It was observed that in Tc+Hc group, T. congolense infection lowered the normal reisitance to H. contortus. The prepatent period was reduced to 17days as compared to 21 days in single H. contortus and in H. contortus preceding T. congolense, respectively. Aneamia, diarrhea and rough hair coat were the major presenting clinical sign. L3 establishment was significantly enhanced in Tc+Hc infected group, higher worm burden was also observed in the same Tc+Hc infected group. The result clearly indicated the immunosuppressive effects of Trypanosomosis on the animal inability to resist helminthic infection.
机译：在30只年龄在12到25个月之间的雌性扬卡萨羊中，进行了刚果锥虫（Tc）和锥虫（Hemonchus contortus）（Hc）双重​​感染的实验研究。寄生虫学观察如繁殖期，粪便卵数，蠕虫负担是对单独感染了Contortus和Congolense的动物进行的。然后一组感染了锥虫T. contortus感染后一周，另一组相反。观察到，在Tc + Hc组中，弓形虫的感染降低了对弯曲杆菌的正常抵抗力。相比于单独的Contortus和Congolense之前的Contortus的21天，保护期缩短至17天。神经病，腹泻和毛发粗糙是主要的临床体征。 Tc + Hc感染组L3的建立显着增强，在同一Tc + Hc感染组中也观察到较高的蠕虫负担。结果清楚地表明了锥虫病对不能抵抗蠕虫感染的动物的免疫抑制作用。

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