Results 31 to 40 of about 10,812 (191)

Anthelmintic resistance in gastrointestinal nematodes of beef cattle in the state of Rio Grande do Sul, Brazil

open access: yesInternational Journal for Parasitology: Drugs and Drug Resistance, 2016
Gastrointestinal nematodes resistant to anthelmintics have been reported in several regions of Brazil, and they may be associated with economic losses for the cattle industry.
Fernanda Ramos   +7 more
doaj   +1 more source

Use of nematophagous fungi in biological control of gastrointestinal nematodes in sheeps

open access: yesLogos Ciencia & Tecnología, 2016
The control of gastrointestinal nematodes in sheep is almost exclusively done with chemical products that generally offer good results, however inappropriate use has generated the presence of resistance in some parasitic groups. Consistent with this, and
García, Diego José   +2 more
doaj   +1 more source

Gene expression profiling of Naïve sheep genetically resistant and susceptible to gastrointestinal nematodes

open access: yesBMC Genomics, 2006
Background Gastrointestinal nematodes constitute a major cause of morbidity and mortality in grazing ruminants. Individual animals or breeds, however, are known to differ in their resistance to infection.
Hyndman Dianne L   +8 more
doaj   +1 more source

NEMATODES COMMUNITY INFECTING CHALCIDES OCELLATUS LIZARD AND THEIR RELATION TO SOME ENVIRONMENTAL AND BIOLOGICAL FACTORS [PDF]

open access: yesJournal of the Egyptian Society of Parasitology, 2016
Sixty-eight species from Chalicides ocellatus lizard were captured from Abu Rawash, Giza, Egypt and surveyed for gastrointestinal nematodes. 50% of the lizards were infected.
EHSSAN HASSAN
doaj   +1 more source

Immunity to gastrointestinal nematodes: mechanisms and myths [PDF]

open access: yesImmunological Reviews, 2014
SummaryImmune responses to gastrointestinal nematodes have been studied extensively for over 80 years and intensively investigated over the last 30–40 years. The use of laboratory models has led to the discovery of new mechanisms of protective immunity and made major contributions to our fundamental understanding of both innate and adaptive responses ...
Grencis, Richard K.   +2 more
openaire   +3 more sources

Multidrug resistance in Haemonchus contortus in sheep - can it be overcome?

open access: yesJournal of Veterinary Research, 2023
Gastrointestinal nematodes pose a threat to animal health and affect farmers by negatively impacting farm management.
Babják Michal   +5 more
doaj   +1 more source

In vitro and in vivo anthelmintic activities of Iris kashmiriana Linn.

open access: yesJournal of the Saudi Society of Agricultural Sciences, 2018
In search of a natural antiparasitic, in vitro and in vivo anthelmintic activities of methanol and aqueous extracts of Iris kashmiriana Linn. rhizome were tested against gastrointestinal nematodes of sheep.
Abida Khan   +3 more
doaj   +1 more source

Cross-transmission of resistant gastrointestinal nematodes between wildlife and transhumant sheep

open access: yesPeer Community Journal
Wild and domestic ungulates can be infected with the same species of gastrointestinal parasitic nematodes. These parasites have free-living stages in the environment that contribute to the ease of transmission among different host species.
Beaumelle, Camille   +16 more
doaj   +1 more source

OX40 interactions in gastrointestinal nematode infection

open access: yesImmunology, 2005
SummaryThe immune expulsion of gastrointestinal nematode parasites is usually associated with T helper type 2 (Th2) responses, but the effector mechanisms directly responsible for parasite loss have not been elucidated. The intestinal inflammatory response accompanying infection with gastrointestinal helminths is thought to be a contributory factor ...
Garside, P.   +6 more
openaire   +5 more sources

Mucosal immunity against parasitic gastrointestinal nematodes [PDF]

open access: yesThe Korean Journal of Parasitology, 2000
The last two decades witnessed significant advances in the efforts of immunoparasitologists to elucidate the nature and role of the host mucosal defence mechanisms against intestinal nematode parasites. Aided by recent advances in basic immunology and biotechnology with the concomitant development of well defined laboratory models of infection ...
D N, Onah, Y, Nawa
openaire   +2 more sources

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