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Knowledge, attitudes and practices of Australian dairy goat farmers towards the control of gastrointestinal parasites.
Parasit Vectors
January 2025
Melbourne Veterinary School, The University of Melbourne, Werribee, VIC, 3030, Australia.
Background: Gastrointestinal parasites such as nematodes and coccidia are responsible for significant economic losses in the goat industry globally. An indiscriminate use of antiparasitic drugs, primarily registered for use in sheep and cattle, in goats has resulted in drug-resistant gastrointestinal parasites. Very little is known about the gastrointestinal parasite control practices used by Australian dairy goat farmers that are pivotal for achieving sustainable control of economically important parasites.
View Article and Find Full Text PDFAbsolute eosinophil count and expression analyses of cytokine genes in Haemonchus contortus resistant Malpura sheep: Role of TH1/TH2 cytokine dichotomy.
Vet Parasitol Reg Stud Reports
January 2025
Animal Genetics and Breeding Division, ICAR-Central Sheep and Wool Research Institute, Avikanagar 304 501, Rajasthan, India.
A strong Th2-type immune response against Haemonchus contortus infection in genetically resistant sheep provide immunity. The objective of present study was to correlate mean faecal egg counts (FECs), absolute eosinophil counts and Th1/Th2 gene expression in resistant (R) and susceptible (S) Malpura sheep. In spite of no anthelmintic treatment in R line, on majority of the months, mean FECs remained significantly (P < 0.
View Article and Find Full Text PDFIn vitro culture of the parasitic stage larvae of hematophagous parasitic nematode Haemonchus contortus.
Int J Parasitol
January 2025
National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China. Electronic address:
Current research on common parasitic nematodes is limited because their infective stages cannot be propagated in vitro. Here, we report a culture system for developing L4s of Haemonchus contortus, a blood-feeding nematode of ruminants. Our results demonstrated that a proportionate mixture of NCTC-109 to Luria-Bertini (1:2) media promoted the formation of early L4s and then into late L4s upon inclusion of 12.
View Article and Find Full Text PDFA systematic review of the molecular mechanisms related to anthelmintic resistance in Haemonchus contortus: A contemporary narrative.
Vet Parasitol
January 2025
Laboratory of Veterinary Clinical Parasitology, Federal University of Paraná, UFPR, R: dos Funcionários, 1540, Curitiba, PR CEP: 81530-000, Brazil. Electronic address:
Haemonchus contortus is a gastrointestinal parasite that affects ruminants (cattle, sheep, etc.), having a significant welfare impact worldwide. The rise of anthelmintic resistance poses a growing challenge to adequate control, compromising the success of treatments.
View Article and Find Full Text PDFGenome assembly variation and its implications for gene discovery in nematodes.
Int J Parasitol
January 2025
Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada; Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada. Electronic address:
Genome assemblers are a critical component of genome science, but the choice of assembly software and protocols can be daunting. Here, we investigate genome assembly variation and its implications for gene discovery across three nematode species-Caenorhabditis bovis, Haemonchus contortus, and Heligmosomoides bakeri-highlighting the critical interplay between assembly choice and downstream genomic analysis. Selecting commonly used genome assemblers, we generated multiple assemblies for each species, analyzing their structure, completeness, and effect on gene family analysis.
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