Results 121 to 130 of about 1,438 (159)

Bacillus thuringiensis: Laboratory tests against four species of biting lice (mallophaga: Trichodectidae)

Journal of Invertebrate Pathology, 1974
Abstract Four species of mammalian biting lice, Bovicola bovis, B. crassipes, B. limbata, and B. ovis, were more susceptible in the laboratory to the spore-δ-endotoxin complex of Bacillus thuringiensis than to the β-exotoxin. The relative potency of these active principles was thus reversed from that for avian biting lice.
R E, Gingrich, N, Allan, D E, Hopkins
exaly   +3 more sources

World Association for the Advancement of Veterinary Parasitology (W.A.A.V.P.) guidelines for evaluating the efficacy of ectoparasiticides against biting lice, sucking lice and sheep keds on ruminants

Veterinary Parasitology, 2006
These guidelines have been prepared to assist in the design, implementation and interpretation of studies for the assessment of the efficacy of ectoparasiticides against biting and sucking lice and sheep keds on ruminants. Information is provided on the selection of animals, dose determination, dose confirmation and field studies, record keeping and ...
Steffen Rehbein
exaly   +3 more sources

Mallophaga (Biting Lice or Bird Lice)

1977
Richards O W, Davies R G
exaly   +2 more sources

Biting Lice: Order Mallophaga

1979
exaly   +2 more sources

Mallophaga (Biting Lice)

2000
exaly   +2 more sources

Piercing Mouth-Parts in the Biting Lice (Mallophaga)

Nature, 1949
THE Mallophaga, ectoparasites of birds and mammals, are distinguished within the order Phthiraptera (containing also the Anoplura and Haematomyzus) chiefly by their relatively unspecialized mouth-parts, especially in having heavily sclerotized chewing mandibles.
openaire   +2 more sources

Persistence of the activity of topical ivermectin against biting lice ( Bovicola bovis )

Veterinary Record, 1998
To assess the persistence of the activity of topical ivermectin against a natural challenge with biting lice ( Bovicola bovis ), 90 mixed‐breed cattle that had been treated to remove lice, were blocked by bodyweight within sex and randomly allocated to three treatments: untreated control ...
B, Clymer, K M, Newcomb, W G, Ryan, M D, Soll   +3 more
openaire   +2 more sources

Kellogg's List of Biting Lice (Mallophaga) Taken from North American Birds and Mammals A List of the Biting Lice (Mallophaga) Taken from Birds and Mammals of North America Vernon L. Kellogg

Auk, 1900
exaly   +2 more sources

Connections between poultry biting lice and microflora.

Angewandte Parasitologie, 1984
Microorganisms were found in about 300 Mallophaga ( Menopon gallinae, Eomenacanthus stramineus , Goniocotes gallinae) and 11 host hens. The majority of isolated bacteria was determined as grampositive cocci. The microflora found on the surface of and inside the Mallophaga as well as in the samples of hen's skin did not exhibit significant qualitative ...
E, Lonc, J, Złotorzycka
openaire   +1 more source

Spatial distribution and spread of sheep biting lice, Bovicola ovis, from point infestations

Veterinary Parasitology, 1999
The spatial distribution of chewing lice (Bovicola ovis) on their hosts was examined in Polypay and Columbia ewes initially artificially infested on the midside or the neck. Densities of lice were determined at 69 body sites in eight body regions at approximately monthly intervals for 2 years.
James, P. J., Moon, R. D.
openaire   +5 more sources