Moisture and temperature requirements in faeces for the development of free-living stages of gastrointestinal nematodes of sheep, cattle and deer

Journal of Helminthology
C E Rossanigo, L Gruner

Abstract

Isolates from eight gastrointestinal nematode species parasitic in sheep, cattle and deer were maintained in sheep, to provide eggs in similar faecal environments and to compare temperature and moisture requirements for their development. Faecal cultures were processed at different temperatures (for four species) and moisture contents (for the eight species). At 60% of faecal moisture content (FMC), maximal rates of development (expressed as L3/100 hatchable eggs estimated by an extraction technique from the faeces) were observed at 20, 23 and 28 degrees C respectively for Ostertagia leptospicularis, O. ostertagi, Teladorsagia circumcincta and Trichostrongylus colubriformis. For the eight species, the curves of development rates as functions of FMC were Gaussian, without modification between 18 and 28 degrees C. Optimal developments were when the FMC ranged from 57 to 68%; low developments of 1L3/100eggs were observed when the FMC ranged from 85 to 95% and from 25 to 55%. The main differences between species were in the ability of the eggs of Teladorsagia circumcincta, Trichostrongylus colubriformis, T. vitrinus and Chabertia ovina to develop at lower FMC than Haemonchus contortus, O. ostertagi, O. leptospicularis and Cooperia ...Continue Reading

References

Jul 1, 1991·Veterinary Parasitology·C E Rossanigo, L Gruner
Jan 1, 1981·Zeitschrift Für Parasitenkunde·F H Borgsteede
Jan 1, 1962·Journal of Comparative Pathology·J H ROSE

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Citations

Jun 20, 2003·International Journal for Parasitology·Karin TroellJohan Höglund
Mar 1, 2010·Animal : an International Journal of Animal Bioscience·J van DijkP J Skuce
Feb 27, 2007·Journal of Zoo and Wildlife Medicine : Official Publication of the American Association of Zoo Veterinarians·Juana OrtizMar Cano
Dec 21, 2010·Preventive Veterinary Medicine·V MusellaA Biggeri
Mar 21, 2007·Veterinary Parasitology·Lisa R WalkerSimon Brown
Oct 3, 2006·Veterinary Parasitology·Lauren J O'ConnorLewis P Kahn
Aug 28, 2014·International Journal for Parasitology. Parasites and Wildlife·Erin E GorsichAnna E Jolles
Sep 10, 2014·International Journal for Parasitology. Parasites and Wildlife·Hannah RoseEric R Morgan
Sep 10, 2016·Parasite : Journal De La Société Française De Parasitologie·Salah MeradiBourhane Bentounsi
Apr 21, 2010·Reproduction in Domestic Animals = Zuchthygiene·G Taru SharmaG Sai Kumar
Oct 2, 2012·Reproduction in Domestic Animals = Zuchthygiene·R C BohrerP B D Gonçalves
Jun 9, 2007·Acta Veterinaria Hungarica·J Simões, R Mascarenhas
May 29, 2020·Animal Science Journal = Nihon Chikusan Gakkaihō·Asrat Tera DoleboMourad Rekik

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