Results 41 to 50 of about 11,878 (215)

Persistence of the efficacy of copper oxide wire particles against Haemonchus contortus in grazing South African goats [PDF]

open access: yes, 2012
A study was conducted to examine the duration of anthelmintic effect of copper oxide wire particles (COWP) in grazing goats, as data for the persistence of efficacy of COWP in this host species is limited.
Medley, G. F.   +8 more
core   +1 more source

Pendeteksian secara Otomatis Telur Cacing Haemonchus contortus menggunakan Algoritma YOLOv3

open access: yes, 2022
Infeksi Haemonchus contortus atau haemonchosis umumnya terjadi pada ruminansia kecil seperti domba. Haemonchus contortus adalah spesies yang paling patogenik pada ruminansia kecil dan berhabitat di abomasum.
Satrija, Fadjar   +3 more
core   +1 more source

A multi-species model to assess the effect of refugia on worm control and anthelmintic resistance in sheep grazing systems

open access: yes, 2011
Develop a computer simulation model that uses daily meteorological data and farm management practices to predict populations of Trichostrongylus colubriformis, Haemonchus contortus and Teladorsagia (Ostertagia) circumcincta and the evolution of ...
Barnes, E.H.   +16 more
core   +1 more source

Establishment of co-infection and hybridization of Haemonchus contortus and Haemonchus placei in sheep

open access: yesJournal of Helminthology, 2018
AbstractThis study aimed to evaluate the simultaneous infections of Haemonchus contortus and Haemonchus placei in sheep, as well as the production of hybrids. A parental group of lambs (n = 6) were mix-infected with 2000 infective larvae (L3) of H. placei and 2000 L3 of H. contortus. Faecal samples were taken from each of these six lambs to produce the
M.C. Santos   +2 more
openaire   +3 more sources

Anthelmintic resistance in sheep nematodes in Australia: a compilation of recent test results

open access: yesAustralian Veterinary Journal, EarlyView.
Objective The results of recent faecal egg count reduction tests (FECRTs) were collated to provide an indication of the prevalence and severity of anthelmintic resistance in sheep nematodes across Australia and of changes in comparison to earlier testing reports.
RB Besier, NM Rolls
wiley   +1 more source

Exploring the anthelmintic properties of Australian native shrubs with respect to their potential role in livestock grazing systems

open access: yes, 2009
We measured in vitro anthelmintic activity in extracts from 85 species of Australian native shrub, with a view to identifying species able to provide a degree of worm control in grazing systems.
Vercoe, P.   +8 more
core   +1 more source

Diversity in parasitic nematode genomes: the microRNAs of Brugia pahangi and Haemonchus contortus are largely novel [PDF]

open access: yes, 2012
<b>BACKGROUND:</b> MicroRNAs (miRNAs) play key roles in regulating post-transcriptional gene expression and are essential for development in the free-living nematode Caenorhabditis elegans and in higher organisms.
Winter, A.D.   +20 more
core   +1 more source

REDESCRIPTIONS OF HAEMONCHUS MITCHELLI AND HAEMONCHUS OKAPIAE (NEMATODA: TRICHOSTRONGYLOIDEA) AND DESCRIPTION OF A UNIQUE SYNLOPHE FOR THE HAEMONCHINAE

open access: yesJournal of Parasitology, 2002
In the course of a revision of Haemonchus Cobb, 1898 (Nematoda), commonly referred to as large stomach worms, significant new morphological information was discovered that allows the recognition of 2 species believed for more than 50 yr to be synonymous. Both species, Haemonchus mitchelli Le Roux, 1929, from the eland Taurotragus oryx and other African
Lichtenfels, J. Ralph   +3 more
openaire   +3 more sources

A differential interplay between the expression of Th1/Th2/Treg related cytokine genes in Teladorsagia circumcincta infected DRB1*1101 carrier lambs [PDF]

open access: yes, 2011
peer-reviewedSubstantial debate exists on whether the immune response between sheep resistant and susceptible to gastrointestinal nematodes can be differentiated into a Th1 and Th2 phenotype.
Barbara Good   +15 more
core   +1 more source

Potential of the Predatory Mites Gamasellodes lavafesii (Mesostigmata: Ascidae) and Cosmolaelaps mediocuspis (Mesostigmata: Laelapidae) on Different Soil Pests/Parasites and Alternative Prey for Large‐Scale Rearing

open access: yesJournal of Applied Entomology, Volume 150, Issue 5, Page 562-572, June 2026.
ABSTRACT Many species of Mesostigmata soil mites have potential as biological control agents of pests/parasites. This study evaluated the predation potential of two of these species, Gamasellodes lavafesii (Ascidae) and Cosmolaelaps mediocuspis (Laelapidae).
A. R. A. Barros   +4 more
wiley   +1 more source

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