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Corrigendum to "An improved model for the population dynamics of cattle gastrointestinal nematodes on pasture: Parameterisation and field validation for Ostertagia ostertagi and Cooperia oncophora in Northern Temperate zones" [Vet. Parasitol. 310 (2022) 109777].
Vet Parasitol
August 2024
Department of Comparative Biology and Experimental Medicine, Host Parasite Interactions Program, Faculty of Veterinary Medicine, 3330, Hospital Drive, University of Calgary, Calgary, Alberta T2N 4N1, Canada.
Inconsistency of in vitro exsheathment triggers for gastrointestinal nematode parasites of sheep, cattle and deer.
Parasitol Res
July 2024
Grasslands Research Centre, AgResearch Ltd, Private Bag 11008, Palmerston North, New Zealand.
Exsheathment is crucial in the transition from free-living to parasitic phase for most strongyle nematode species. A greater understanding of this process could help in developing new parasitic control methods. This study aimed to identify commonalities in response to exsheathment triggers (heat acclimation, CO and pH) in a wide range of species (Haemonchus contortus, Trichostrongylus spp.
View Article and Find Full Text PDFMicrobial community in resistant and susceptible Churra sheep infected by Teladorsagia circumcincta.
Sci Rep
October 2022
Instituto de Ganadería de Montaña, CSIC-Universidad de León, 24346, Grulleros, León, Spain.
Gastrointestinal nematodes (GIN) are a major threat to health and welfare in small ruminants worldwide. Teladorsagia circumcincta is a nematode that inhabits the abomasum of sheep, especially in temperate regions, causing important economic losses. Given that T.
View Article and Find Full Text PDFBehaviour is more important than thermal performance for an Arctic host-parasite system under climate change.
R Soc Open Sci
August 2022
Department of Biological Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON Canada, M1C 1A4.
Climate change is affecting Arctic ecosystems, including parasites. Predicting outcomes for host-parasite systems is challenging due to the complexity of multi-species interactions and the numerous, interacting pathways by which climate change can alter dynamics. Increasing temperatures may lead to faster development of free-living parasite stages but also higher mortality.
View Article and Find Full Text PDFAn improved model for the population dynamics of cattle gastrointestinal nematodes on pasture: parameterisation and field validation for Ostertagia ostertagi and Cooperia oncophora in northern temperate zones.
Vet Parasitol
October 2022
Department of Comparative Biology and Experimental Medicine, Host Parasite Interactions Program, Faculty of Veterinary Medicine, 3330, Hospital Drive, University of Calgary, Calgary, Alberta T2N 4N1 Canada.
Gastrointestinal nematodes (GIN) are amongst the most important pathogens of grazing ruminants worldwide, resulting in negative impacts on cattle health and production. The dynamics of infection are driven in large part by the influence of climate and weather on free-living stages on pasture, and computer models have been developed to predict infective larval abundance and guide management strategies. Significant uncertainties around key model parameters limits effective application of these models to GIN in cattle, however, and these parameters are difficult to estimate in natural populations of mixed GIN species.
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