Results 1 to 10 of about 218,213 (295)

Eradication of Lice in Cattle [PDF]

Acta Veterinaria Scandinavica, 2001
The purpose of this field study was to develop and evaluate eradication as a strategy to control lice in cattle. Thirty-three herds of cattle were selected and observed during a period of two and a half years. Before eradication, biting lice (Damalinia bovis) were present in 94% of the herds and 27% of the animals.
O. Nafstad, H. Grønstøl
openalex   +6 more sources

The digestion time for salmon louse (Lepeoptheirus salmonis) in lumpfish (Cyclopterus lumpus) in relation to freshness, developmental stage, and temperature. [PDF]

PLoS ONE
Sea lice infestations cause significant economic losses in the Atlantic salmon aquaculture industry. To biologically control sea lice at farming sites, cleaner fish such as lumpfish are employed. However, the efficacy of lumpfish is under constant debate,
Kirstin Eliasen, Sandra Ljósá Østerø, Tróndur Tummasarson Johannesen, Esbern Jóannes Patursson, Ása Jacobsen, Agnes Mols Mortensen, Marner Nolsøe, Ása Johannesen   +7 more
doaj   +2 more sources

Comparative Efficacy of Commercial Antilice Shampoos Against Head Lice in a High-Prevalence Primary School in Thailand [PDF]

Journal of Parasitology Research
This is a cross-sectional study that is aimed at evaluating the efficacy of antilice shampoo against head lice infestation in primary schoolgirls at level 3–6 (aged between 9 and 12 years) with a high prevalence of infestation in Pathum Thani Province ...
Sirima Kitvatanachai, Utsanee Supcharoengoon, Nutnicha Suphakhonchuwong, Aree Taylor, Pochong Rhongbutsri   +4 more
doaj   +2 more sources

Control of Lice [PDF]

BMJ, 1941

openalex   +3 more sources

Chitin Synthases Are Critical for Reproduction, Molting, and Digestion in the Salmon Louse (Lepeophtheirus salmonis)

Life, 2021
Chitin synthase (CHS) is a large transmembrane enzyme that polymerizes Uridine diphosphate N-acetylglucosamine into chitin. The genomes of insects often encode two chitin synthases, CHS1 and CHS2.
Hulda María Harðardóttir, Rune Male, Frank Nilsen, Sussie Dalvin   +3 more
doaj   +1 more source

A novel approach to co-expression network analysis identifies modules and genes relevant for moulting and development in the Atlantic salmon louse (Lepeophtheirus salmonis)

BMC Genomics, 2021
Background The salmon louse (Lepeophtheirus salmonis) is an obligate ectoparasitic copepod living on Atlantic salmon and other salmonids in the marine environment.
Zhaoran Zhou, Christiane Eichner, Frank Nilsen, Inge Jonassen, Michael Dondrup   +4 more
doaj   +1 more source

Two apolipoproteins in salmon louse (Lepeophtheirus salmonis), apolipoprotein 1 knock down reduces reproductive capacity

Biochemistry and Biophysics Reports, 2021
The salmon louse, Lepeophtheirus salmonis is an ectoparasite of salmonid fish in the Northern Hemisphere, causing large economical losses in the aquaculture industry and represent a threat to wild populations of salmonids.
Muhammad Tanveer Khan, Sussie Dalvin, Frank Nilsen, Rune Male   +3 more
doaj   +1 more source

Roles of three putative salmon louse (Lepeophtheirus salmonis) prostaglandin E2 synthases in physiology and host–parasite interactions

Parasites & Vectors, 2021
Background The salmon louse (Lepeophtheirus salmonis) is a parasite of salmonid fish. Atlantic salmon (Salmo salar) exhibit only a limited and ineffective immune response when infested with this parasite.
Sussie Dalvin, Christiane Eichner, Michael Dondrup, Aina-Cathrine Øvergård   +3 more
doaj   +1 more source

Identification and characterization of two salmon louse heme peroxidases and their potential as vaccine antigens

iScience, 2023
Summary: Salmon louse, Lepeophtheirus salmonis, represents major challenge for salmon farming. Current treatments impose welfare issues and are costly, whereas prophylactic measures are unavailable.
Elisabeth Gislefoss, Amr Ahmed Abdelrahim Gamil, Aina-Cathrine Øvergård, Øystein Evensen   +3 more
doaj   +1 more source

Host gill attachment causes blood-feeding by the salmon louse (Lepeophtheirus salmonis) chalimus larvae and alters parasite development and transcriptome

Parasites & Vectors, 2020
Background Blood-feeding is a common strategy among parasitizing arthropods, including the ectoparasitic salmon louse (Lepeophtheirus salmonis), feeding off its salmon host’s skin and blood. Blood is rich in nutrients, among these iron and heme.
Erna Irene Heggland, Michael Dondrup, Frank Nilsen, Christiane Eichner   +3 more
doaj   +1 more source