Results 41 to 50 of about 11,901 (216)

Epidemiological study of genetic diversity and patterns of gene flow in Haemonchus species affecting domestic ruminants in Egypt

open access: yesBulletin of the National Research Centre, 2018
Background Haemonchosis is a major parasitic disease in Egyptian sheep industry and its effect on production, animal wellbeing, and welfare is likely to increase. The present study recorded Haemonchus spp.
Omnia M. Kandil   +4 more
doaj   +1 more source

Development of larvae of suborders Strongylata and Rhabditata in differently mineralized soils

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Bìologìâ, Ekologìâ, 2008
Dependence of suborders Strongylata and Rhabditata larvae development from the mineralization level of soil has been established. With increase of concentration of salt the period of the larvae viability decreases.
О. О. Bojko
doaj   +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

Nutritional Level and Type of Feed on the Reproductive Performance of Ewe and Its Effects on Offspring

open access: yesReproduction in Domestic Animals, Volume 61, Issue 8, August 2026.
ABSTRACT The amount and source of nutrition are important factors that influence an ewe's reproductive ability, but the effects of diet on the reproductive performance of its offspring are unclear. This study aimed to investigate the impact of maternal nutrition (level of nutrition and source) on the reproductive performance of ewes and their female ...
Fernanda Ferreira dos Santos   +6 more
wiley   +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

First Insight Into Multiple Paternity in the Potato Cyst Nematode Globodera pallida Facing Masculinizing Plant Resistance

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
This study demonstrated multiple paternity in the potato cyst nematode Globodera pallida: all females were polyandrous. Moreover, the female mating rate with different males appeared to remain stable, i.e., an average of seven fathering males, throughout the adaptation process to a masculinizing potato resistance.
Magali Esquibet   +5 more
wiley   +1 more source

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

Pomegranate extracts on larval inhibition of Haemonchus spp and Cooperia spp obtained from cattle

open access: yesBioscience Journal, 2016
Consumers increasingly demand natural food and absent of toxic waste and medicated. The aim of this study was to evaluate the aqueous extract of dried and in natura stem from pomegranate on the larval inhibition of Haemonchus spp.
Carolina dos Anjos   +6 more
doaj   +3 more sources

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