| factors associated with the incidence of bacterial gill disease in salmonid lots reared in ontario, canada government hatcheries. | bacterial gill disease (bgd) (causative agent: flavobacterium branchiophilum) has been a persistent problem in early-rearing salmonids in the ontario ministry of natural resources (omnr) fish hatchery system. retrospective epidemiological investigations of bgd diagnoses and treatments in omnr fish hatcheries during the period 1991-2001 were conducted using university of guelph fish health laboratory and omnr central office data. all investigations were conducted at the lot-level, which is the ma ... | 2008 | 17945368 |
| phenotypic and genotypic analysis of flavobacterium psychrophilum isolates from ontario salmonids with bacterial coldwater disease. | flavobacterium psychrophilum is the causative agent of bacterial coldwater disease (bcwd) and rainbow trout fry syndrome. bcwd has a considerable economic impact on aquaculture operations in ontario, canada, and our limited understanding of the population structure and epidemiology of f. psychrophilum isolates is an impediment to the development of improved management strategies. seventy-five 16s rrna gene and gyr polymerase chain reaction positive isolates of f. psychrophilum that had been coll ... | 2008 | 18772924 |
| rearing unit-level factors associated with bacterial gill disease treatment in two ontario, canada government salmonid hatcheries. | early-rearing salmonids in ontario ministry of natural resources (omnr) fish hatcheries have been consistently affected by bacterial gill disease (bgd) (causative agent: flavobacterium branchiophilum) for many years. separate retrospective epidemiological investigations of bgd treatments at two omnr fish hatcheries (hatcheries a and b) for the 1999 production year were conducted using on-site hatchery records. both investigations were carried out at the rearing unit-level, with early-rearing (<9 ... | 2009 | 19560833 |
| a prospective matched nested case-control study of bacterial gill disease outbreaks in ontario, canada government salmonid hatcheries. | early-rearing salmonids in ontario, canada government fish hatcheries have been persistently affected by bacterial gill disease (bgd), and outbreaks at these locations have often been associated with high morbidity and mortality. the causative agent of bgd, flavobacterium branchiophilum, is ubiquitous in fresh water, and outbreaks of bgd are considered to be associated with deleterious environmental conditions. this paper summarizes a 14-month rearing unit-level prospective nested matched case-c ... | 2010 | 20307909 |
| antimicrobial susceptibility of flavobacterium psychrophilum isolates from ontario. | flavobacterium psychrophilum is the etiological agent of bacterial coldwater disease (bcwd), an important disease in the ontario fish farming industry and in finfish aquaculture in temperate waters worldwide. the development of antimicrobial resistance by f. psychrophilum is a concern because management of outbreaks of bcwd often requires the use of antibiotics. seventy-two isolates of f. psychrophilum collected over a 16-year period from farmed salmonids with clinical signs of bcwd were tested ... | 2010 | 20575364 |