Vertical distribution of trichostrongylid larvae on herbage and in soil.

作者: A.P.L. Callinan , J.M. Westcott

DOI: 10.1016/0020-7519(86)90050-0

关键词: PopulationHumidityPastureAgronomyTrichostrongylus axeiBiologyLarvaTeladorsagia circumcinctaTrichostrongylusDiel vertical migration

摘要: Abstract Vertical distribution of trichostrongylid larvae on herbage and in soil. International Journal for Parasitology16: 241–244. The vertical migration third stage (L3) was studied at controlled temperatures humidities to help quantify the relationship between weather movement L3 onto pasture. Pots grass clover were seeded top soil with approx. 1000 Teladorsagia spp. Trichostrongylus sheep nematodes. sampled viable daily intervals over 4 days. On average we recovered 8 times more than herbage, proportion 1.3 did not increase significantly (P=0.44) time, that is there no significant positive from herbage. We a mean 20.0% initial population Only 2.0% these 1.3% found below 2 cm. Seventy-one percent which concentrated within cm soil-herbage interface. Recovery (P=0.001) dependent temperature humidity. There (P > 0.30) difference percentage clover. Neither ratio populations nor density affected

参考文章(12)
J.F. Michel, The Epidemiology and Control of Some Nematode Infections of Grazing Animals Advances in Parasitology Volume 7. ,vol. 7, pp. 211- 282 ,(1969) , 10.1016/S0065-308X(08)60436-4
A.P.L. Callinan, F.H.W. Morley, J.H. Arundel, D.H. White, A model of the life cycle of sheep nematodes and the epidemiology of nematodiasis in sheep Agricultural Systems. ,vol. 9, pp. 199- 225 ,(1982) , 10.1016/0308-521X(82)90020-8
A.P.L. Callinan, The ecology of the free-living stages of Ostertagia circumcincta International Journal for Parasitology. ,vol. 8, pp. 233- 237 ,(1978) , 10.1016/0020-7519(78)90084-X
A.P.L. Callinan, The ecology of the free-living stages of Trichostrongylus vitrinus International Journal for Parasitology. ,vol. 9, pp. 133- 136 ,(1979) , 10.1016/0020-7519(79)90103-6
A.P.L. Callinan, The ecology of the free-living stages of Trichostrongylus axei International Journal for Parasitology. ,vol. 8, pp. 453- 456 ,(1978) , 10.1016/0020-7519(78)90063-2
Ferron L. Andersen, Norman D. Levine, Paul A. Boatman, Survival of Third-Stage Trichostrongylus colubriformis Larvae on Pasture The Journal of Parasitology. ,vol. 56, pp. 209- 232 ,(1970) , 10.2307/3277646
H. D. Crofton, The vertical migration of infective larvae of strongyloid nematodes. Journal of Helminthology. ,vol. 28, pp. 35- 52 ,(1954) , 10.1017/S0022149X00032703