期刊
TROPICAL ANIMAL HEALTH AND PRODUCTION
卷 38, 期 1, 页码 43-53出版社
SPRINGER
DOI: 10.1007/s11250-006-4345-0
关键词
Fasciola gigantica; resistance; resilience; Bali cattle; Ongole cattle; buffalo
Progressive weight gain, faecal egg counts, packed cell volume, percent eosinophils in blood, serum antibody and serum levels of glutamate dehydrogenase and gamma-glutamyl transpeptidase were recorded in seven swamp buffalo (Bubalis bubalis), 7 Ongole (Bos indicus) and four Bali calves (Bos sundiacus) which were infected orally with 15 metacercariae of Fasciola gigantica twice weekly for 32 weeks. Similar observations were made on four buffalo, 4 Ongole calves and 3 Bali calves maintained fluke-free as controls. Flukes were counted at slaughter 36 weeks after initial infection. Mean daily weight gains of infected Bali (228 +/- 100 (SD) g/day) and infected Ongole calves (328 +/- 57 (SD) g/day) were lower (p = 0.026 and 0.067, respectively) than those of control calves (405 +/- 107 (SD) g/day), but infected buffalo calves (379 +/- 78 (SD) g/day) had similar weight gains to those of the controls (p = 0.57). Throughout the trial, faecal Fasciola egg counts in buffaloes were about one-fifth of counts of Ongole calves, and counts in Bali calves were intermediate. Ongole calves had three times the number of flukes at slaughter in their liver compared to buffalo and Bali calves, which had similar numbers. However, there was evidence that Bali calves had acquired a degree of resistance about 24 weeks after infection commenced and may have lost adult flukes as a consequence.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据