Results 1 to 10 of about 9,010 (198)

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

Control of Lice [PDF]

BMJ, 1941

openalex   +3 more sources

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

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

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

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

Principles and Methods of Counteracting Harmful Salmon–Arthropod Interactions in Salmon Farming: Addressing Possibilities, Limitations, and Future Options

Frontiers in Marine Science, 2021
The arthropod salmon louse (Lepeophtheirus salmonis) is a major threat to Atlantic salmon aquaculture and wild salmonids. Essentially like in monoculture, very high concentrations of susceptible hosts may result in high reproduction and severe production
Prashanna Guragain, Prashanna Guragain, Max Tkachov, Max Tkachov, Anna Solvang Båtnes, Yngvar Olsen, Per Winge, Per Winge, Atle M. Bones, Atle M. Bones   +9 more
doaj   +1 more source

Candidate genes for monitoring hydrogen peroxide resistance in the salmon louse, Lepeophtheirus salmonis

Parasites & Vectors, 2020
Background Hydrogen peroxide (H2O2) is one of the delousing agents used to control sea lice infestations in salmonid aquaculture. However, some Lepeophtheirus salmonis populations have developed resistance towards H2O2.
Celia Agusti-Ridaura, Marit Jørgensen Bakke, Kari Olli Helgesen, Arvind Y. M. Sundaram, Sigrid Jørgensen Bakke, Kiranpreet Kaur, Tor Einar Horsberg   +6 more
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Small, charged proteins in salmon louse (Lepeophtheirus salmonis) secretions modulate Atlantic salmon (Salmo salar) immune responses and coagulation

Scientific Reports, 2022
Little is known about glandular proteins secreted from the skin- and blood-feeding ectoparasite salmon louse (Lepeophtheirus salmonis). The labial gland has ducts extending into the oral cavity of the lice, and the present study aimed to identify novel ...
Aina-Cathrine Øvergård, Helena M. D. Midtbø, Lars A. Hamre, Michael Dondrup, Gro E. K. Bjerga, Øivind Larsen, Jiwan Kumar Chettri, Kurt Buchmann, Frank Nilsen, Sindre Grotmol   +9 more
doaj   +1 more source

Hyper clustering model for dynamic network intrusion detection

IET Communications, EarlyView., 2022
Abstract Generally, the existing Intrusion Detection Systems (IDS) solutions suffer from low detection accuracy for some attack types compared with the overall detection accuracy of attacks. The data imbalance technically affects the ratio of detection accuracy of low frequent attacks class (e.g. zero‐day attack) compared to attacks with more instances.
Ali Saeed Alfoudi, Mohammad R. Aziz, Zaid Abdi Alkareem Alyasseri, Ali Hakem Alsaeedi, Riyadh Rahef Nuiaa, Mazin Abed Mohammed, Karrar Hameed Abdulkareem, Mustafa Musa Jaber   +7 more
wiley   +1 more source