BIOLOGICAL-CONTROL OF TRICHOSTRONGYLES IN CALVES BY THE FUNGUS DUDDINGTONIA FLAGRANS FED TO ANIMALS UNDER NATURAL GRAZING CONDITIONS

被引：66
|
作者：
LARSEN, M
NANSEN, P
WOLSTRUP, J
GRONVOLD, J
HENRIKSEN, SA
ZORN, A
机构：
[1] ROYAL VET & AGR UNIV,DEPT ECOL & MOLEC BIOL,MICROBIOL SECT,DK-1958 FREDERIKSBERG C,DENMARK
[2] ROYAL VET & AGR UNIV,DEPT ECOL & MOLEC BIOL,ZOOL SECT,DK-1870 FREDERIKSBERG C,DENMARK
[3] NATL VET LAB,DK-1790 COPENHAGEN V,DENMARK
来源：
VETERINARY PARASITOLOGY | 1995年 / 60卷 / 3-4期
关键词：
CATTLE-NEMATODA; OSTERTAGIA SPP; COOPERIA SPP; CONTROL METHODS-NEMATODA; NEMATODA-DESTROYING FUNGI; DUDDINGTONIA FLAGRANS; BIOLOGICAL CONTROL;
D O I：
10.1016/0304-4017(95)00791-6
中图分类号：
R38 [医学寄生虫学]; Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ; 100103 ;
摘要：
The present study was conducted in the 1993 grazing season with yearling calves exposed to a pasture with a natural mixed trichostrongyle larval infection. It was shown that daily feeding with the microfungus Duddingtonia flagrans during the first 2 months of the season led to a lowered herbage infectivity and a reduced acquisition of Ostertagia sp. and Cooperia sp. later in the season. In addition, the procedure delayed the onset of clinical disease. This was due to the nematode-destroying effects of the fungi in the dung excreted by the fungus-treated calves, as evidenced by results from a parallel in vitro assay on faecal larval cultures. The paper discusses future research needs before practical biological control can be implemented.
引用
收藏
页码：321 / 330
页数：10
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