02235naa a2200409 a 450000100080000000500110000800800410001902400540006010000200011424501690013426000090030352010150031265000170132765000310134465000100137565000140138565000140139965000170141365000120143065000100144265000120145265000180146465000250148265000290150765000100153665000130154665000180155965000150157765300200159265300350161265300300164770000140167770000180169170000150170970000210172477300800174515281862025-01-09       1990    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1016/0020-7519(90)90095-52DOI1 aBANKS, D. J. D.  aDevelopment and survival of infective larvae of Haemonchus contortus and Trichostrongylus colubriformis on pasture in a tropical environment.h[electronic resource]  c1990  aAbstract: A trial to determine the seasonal pattern of egg hatching and larval survival on pasture was carried out in representative wet and dry zones of Fiji. Fourteen plots were established on parasite-free pasture at each of two sites. One plot at each site was contaminated every month with faeces from naturally infected goats containing a known proportion of Haemonchus contortus and Trichostrongylus colubriformis eggs. Pasture was sampled at regular intervals after contamination and infective larvae identified and counted. Larvae of both species developed throughout the year in the wet zone but development was more sporadic in the dry zone. Larval counts generally declined to below detectable levels within 9 weeks of contamination between September and March but longevity increased during the cooler weather from April to August. The comparatively short larval survival times noted in this experiment may present opportunities for manipulation of parasite population dynamics in the wet tropics.  aEpidemiology  aGastrointestinal nematodes  aGoats  aHelminths  aParasites  aParasitology  aSeasons  aSheep  aCaprino  aEpidemiologia  aHaemonchus Contortus  aHelminto Gastrintestinal  aOvino  aParasito  aParasitologia  aParasitose  aLarval survival  aTrychostrongylus colubriformis  aVerminose gastrintestinal1 aSINGH, R.1 aBARGER, I. A.1 aPRATAP, B.1 aLE JAMBRE, L. F.  tInternational Journal for Parasitologygv. 20, n. 2, p. 155-160, Apr. 1990.