Author:
Silverman Paul H.,Campbell J. Allan
Abstract
Laboratory studies on the embryonic and larval development of Haemonchus contortus under constant temperatures of 0·0°, 7·2°, 11°, 14·4°, 21·7° and 37° C., and varying moisture conditions were carried out. Reports of preliminary studies on Ostertagia spp., Trichostrongylus spp. and Oesophagostomum venulosum are included.Observations showed that eggs in the same culture may behave in several ways: (1) eggs may develop at different rates; (2) eggs may exhibit intermittent stages of active and inhibited development; and (3) eggs may fail to develop and die at any stage from unknown causes.
Publisher
Cambridge University Press (CUP)
Subject
Infectious Diseases,Animal Science and Zoology,Parasitology
Reference22 articles.
1. Observations on the vertical migrations of the third-stage larva of Haemonchus contortus (Rud.) on experimental plots of Lolium perenne S24, in relation to meteorological and micrometeorological factors
2. An account of the gain and loss of the infective larvae of parasitic nematodes in pastures;Taylor;Vet. Rec.,1957
3. Stomach worms (Haemonchus contortus) in sheep;Ransom;Circ. U. S. Bur. Anim. Ind.,1907
4. Survival on Grass Plots of Eggs and Preinfective Larvae of the Common Sheep Stomach Worm, Haemonchus contortus
5. Development and survival under outdoor conditions of eggs and larvae of the common ruminant stomach worm, Haemonchus contortus;Dinabubg;J. Agric. Res.,1944
Cited by
97 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献