References of "Losson, Bertrand"
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See detailCompétence vectorielle des mouches ténérables de Glossina morsitans morsitans (Mall) infectées parTrypanosoma congolense (Nannomonas) IL 1180
Kazadi, J.-M.; Kagéruka, P.; Losson, Bertrand ULg et al

in Insect Science and its Application (1998), 18

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See detailPrevalence and characterization of Microsporum canis carriage in cats.
Mignon, Bernard ULg; Losson, Bertrand ULg

in Journal of Medical and Veterinary Mycology : Bi-Monthly Publication of the International Society for Human and Animal Mycology (1997), 35(4), 249-256

In order to determine the prevalence and to characterize the carriage of Microsporum canis in cats, different mycological examinations (including a culture obtained by hair brushing and Wood's light ... [more ▼]

In order to determine the prevalence and to characterize the carriage of Microsporum canis in cats, different mycological examinations (including a culture obtained by hair brushing and Wood's light examination) were performed on 632 animals of different origins. Group 1 comprised 467 healthy pet cats belonging to veterinary students. In this group, prevalence of carriage was 2.1%: eight cats were asymptomatic transient carriers and one cat was an asymptomatic infected animal presenting discrete Wood's-positive lesions disseminated on the whole body that were visible after sedation and clipping. The carriage prevalence was higher (15.7%) in group 2 comprising 134 European cats destroyed in a pound and kept together. In two additional groups of cats, it was shown that an infected cat was responsible for the dissemination of fungal material into its environment including the other in-contact animals. When the active source of fungus was removed, the dissemination stopped, resulting in a decrease in the amount of infective material recovered from both the animal carriers and the environmental surfaces. This was also observed in two experimental groups of guinea pigs. No association between feline immunodeficiency virus infection and the M. canis carriage was observed in a retrospective case-control study performed on group 2. None of these cats was feline leukaemia virus positive. [less ▲]

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See detailVaccines for cattle
Thiry, Etienne ULg; Lyaku, Japhet; Losson, Bertrand ULg et al

in Pastoret, Paul-Pierre; Blancou, Jean; Vannier, P. (Eds.) et al Veterinary Vaccinology (1997)

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See detailMonitoring of triclabendazole efficacy in naturally infected cattle using an antigen competition ELISA
Leclipteux, T.; Bossaert, K.; Protz, M. et al

Poster (1997)

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See detailVaccination against ringworm in cattle
Mignon, Bernard ULg; Losson, Bertrand ULg

in Pastoret, Paul-Pierre; Blancou, J.; Vannier, P. (Eds.) et al Veterinary Vaccinology (1997)

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See detailInfestation par Paramphistomum sp. chez le bovin : description d'un premier cas en Belgique
Losson, Bertrand ULg; Cassart, Dominique ULg; Mignon, Bernard ULg

in Annales de Médecine Vétérinaire (1997), 142

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See detailField Efficacy of Moxidectin 0.5% Pour-on against Chorioptes Bovis, Damalinia Bovis, Linognathus Vituli and Psoroptes Ovis in Naturally Infected Cattle
Losson, Bertrand ULg; Lonneux, J. F.

in Veterinary Parasitology (1996), 63(1-2), 119-30

Field efficacy of a pour-on formulation of moxidectin, a macrocyclic lactone endectocide, was evaluated in cattle naturally infested with Chorioptes bovis, Damalinia bovis, Linognathus vituli and ... [more ▼]

Field efficacy of a pour-on formulation of moxidectin, a macrocyclic lactone endectocide, was evaluated in cattle naturally infested with Chorioptes bovis, Damalinia bovis, Linognathus vituli and Psoroptes ovis. In trial 1, two experimental groups of cattle naturally infested with P. ovis were formed. Group 1 animals remained as untreated controls whereas Group 2 animals were treated on day 0 with 0.5% moxidectin cattle pour-on at a dose of 0.5 mg kg-1 bw. Efficacy was assessed by (a) taking skin samples from each animal on days -4, 7, 14, 21, 28, 42 and 56 post treatment (PT) and observing the numbers of viable P. ovis mites and (b) clinical examination of animals on days 7, 14, 21, 28, 42 and 56 with the percentage of affected body surface calculated and live body weights recorded for each animal on days 4, 28 and 42. The pour-on formulation of moxidectin yielded excellent efficacy as no live mites were found in treated animals at 14, 21, 28, 42 and 56 days PT, except in one animal from which one adult mite was collected on day 42. Clinical indices showed a regular decrease in the affected body surface area. All untreated animals but one remained positive until day 28 and their clinical condition worsened rapidly. In trial 2, two experimental groups of cattle naturally infested with D. bovis and L. vituli were selected. Group 1 remained as untreated controls whereas Group 2 individuals were treated on day 0 with 0.5% moxidectin cattle pour-on at a dose of 0.5 mg kg-1 bw. Efficacy was assessed by identifying and counting lice on eight 15 cm hair partings at predefined anatomical sites on days 0, 14, 28 and 42. On the basis of animals cured and lice count reduction, efficacies were 100% on day 14 and from then onwards for both species. In trial 3, 24 animals naturally infested with C. bovis were divided into three experimental groups comprising eight (Group I), seven (Group 2) and nine animals (Group 3). Group 1 was the untreated control group whereas Groups 2 and 3 animals were treated on day 0 with 0.5% moxidectin cattle pour-on at a dose of 0.25 mg and 0.5 mg kg-1 bw, respectively. Efficacy was assessed as in trial 1. Skin scrapings were collected on days -3, 7, 14, 28, 42 and 56 PT. A clinical index was calculated for each animal on days 0, 28 and 56 whereas body weights were recorded on days 0 and 56. At 0.25 mg kg-1 bw, the efficacy of moxidectin cattle pour-on against C. bovis was incomplete. In contrast, at a dose of 0.5 mg kg-1 bw, moxidectin cattle pour-on was fully effective and by day 14 PT all animals were negative for C. bovis and remained so until the end of the trial. No side effects were observed during these three trials. These results indicate that at a dose of 0.5 mg kg-1 bw, the pour-on formulation of moxidectin is highly effective against C. bovis, D. bovis, L. vituli and P. ovis. [less ▲]

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See detailDermatophylose équine: revue à partir d'un cas clinique
Vandenput, Sandrina ULg; Manteca, C.; Jauniaux, Thierry ULg et al

in Annales de Médecine Vétérinaire (1996), 140(2), 125-129

From a clinical case of equine dermatophilosis, a short review of literature is proposed. The aetiology, causal factors, symptoms and lesions are brievely reviewed. Therapeutics and prophylaxis are ... [more ▼]

From a clinical case of equine dermatophilosis, a short review of literature is proposed. The aetiology, causal factors, symptoms and lesions are brievely reviewed. Therapeutics and prophylaxis are outlined. [less ▲]

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See detailLa gale psoroptique bovine. Une maladie éradicable ?
Mignon, Bernard ULg; Lonneux, J. F.; Losson, Bertrand ULg

in Sillon Belge (1996), 20.12.1996

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See detailThe efficacy of a phyto-aromatic ear gel against auricular mange in rabbits and carnivores
Mignon, Bernard ULg; Losson, Bertrand ULg

in Veterinary Record : Journal of the British Veterinary Association (1996), 138

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See detailSeabirds mortality during the 1992-1993 winter along the Belgian coast
Jauniaux, Thierry ULg; Brosens, L.; Farnir, Frédéric ULg et al

in Annales de Médecine Vétérinaire (1996), 140(3), 149-

During the 1992-1993 133 seabirds found on Belgian beaches were necropsied. Most frequent species were the guillemot (Uria aalge), the oystercatcher (Haematopus ostralegus), the kittiwake (Rissa ... [more ▼]

During the 1992-1993 133 seabirds found on Belgian beaches were necropsied. Most frequent species were the guillemot (Uria aalge), the oystercatcher (Haematopus ostralegus), the kittiwake (Rissa tridactyla), the razorbill (Alca torda) and the herring gull (Larus argentatus). The three main observations were, in decreasing order, cachexia, acute and hemorrhagic gastroenteritis, and oil contamination of plumage and intestinal tract. The pelagic origin of seabirds was associated with all 3 observations; oil contamination was associated with acute gastro-enteritis and cachexia and, finally, the immature character was associated with cachexia. A hypothetical mechanism of death would be oiled pelagic seabirds that become cachectic and die of acute gastroenteritis. It is unlikely that seabirds act as a reservoir for bacteria, that were only occasionally identified in our material. Therefore, it appears that infectious agents play a minor role in seabirds stranding. [less ▲]

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See detailA study of the relationships between parasite counts, lesions and daily weight gains in Psoroptes ovis infested in cattle
Lonneux, J. F.; Bossaert, K.; Leclipteux, T. et al

Conference (1995)

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See detailKinetics of a specific antibody response after successful treatment in naturally Psoroptes ovis infested cattle
Lonneux, J. F.; Bossaert, K.; Leclipteux, T. et al

Conference (1995)

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