In the autumn of 2001, a self-administered mailed questionnaire was sent to fin fish recirculation facilities in the United States and Canada to examine the extent of biosecurity currently practiced in this sector of aquaculture. This paper describes the results of this survey (86% response rate). I...

Project Loma is a multidisciplinary collaborative research programme aimed to develop the treatment and control of the microsporidian parasite Loma salmonae which is the cause of Microsporidial Gill Disease of Salmon (MGDS). Recent studies have shown that the principal host target, salmonids within ...

Chloramine-T is a commonly used therapeutic agent for the treatment of bacterial gill disease and related phenomena in the salmonid aquaculture industry. There is little known about its effects on healthy fish. Using a 24-tank replicate growth assay system, rainbow trout (Oncorhynchus mykiss) (avera...

Infectious salmon anaemia virus (ISAV), a member of the family Orthomyxoviridae, is an important fish pathogen in marine aquaculture in the Northern Hemisphere. The pathogenesis of ISAV infection at the cellular level is not well studied. We investigated three permissive cell lines for ISAV, (SHK-1,...

Diseases are an integral part of the existence of all animals including both cultured and wild fish populations. Diseases among cultured fish can cause death, poor growth and food conversion, increased production costs and interrupted production schedules. The main objective of this study was to con...

Cattle exposed only to Pasteurella multocida, to parainfluenza-3 virus, or to cold stress developed only mild upper respiratory symptoms; but when P. multocida infection was combined with PI-3 virus infection and/or cold stress, severe pneumonia developed. In in vitro studies, P. haemolytica or Esch...

With respect to the culture of salmonids, environmental diseases per se, and the specific role of environmental factors in the genesis of infectious disease conditions, are often trivialized and in many cases have not been explored beyond a perfunctory level. The present trend toward use of recircul...

14 early lactation Holstein cows were experimentally challenged by intramammary infusion of 2 teats to compare the virulence of the strains of Escherichia coli isolated from faeces or from cases of bovine mastitis. The initial treatment protocol consisted of parenteral antibiotics and fluid therapy ...

Antimicrobial drug resistance patterns of atypical isolates of Aeromonas salmonicida from Atlantic salmon Salmo salar, or rainbow trout Oncorhynchus mykiss, from sites in Newfoundland were determined by disk diffusion assay. There was no resistance against chloramphenicol, kanamycin, nalidixic acid,...

Infectious salmon anaemia virus (ISAV) is a member of the family Orthomyxoviridae. Hybridization using riboprobes of segments 6 and 8 and histology were combined in situ to demonstrate the tissues that harbour ISAV during the clinical phase of ISAV infection in Atlantic salmon (Salmo salar L.) The c...