Preliminary investigation of an idiopathic muscle disease in farmed burbot Lota lota

Pietsch, Constanze; Tschudi, F.; Baumann, S.; Schmidt-Posthaus, H. (2020). Preliminary investigation of an idiopathic muscle disease in farmed burbot Lota lota Diseases of Aquatic Organisms, 140, pp. 179-186. Inter-Research 10.3354/dao03494

Text d140p179.pdf - Published Version Restricted to registered users only until January 2026. Available under License Publisher holds Copyright. Download (2MB) | Request a copy

The rearing of less established fish species in recirculating aquaculture systems (RASs) is increasing, but may require adaptations of the rearing facilities if health impairments occur. We observed several health issues in burbot Lota lota reared for up to 2 yr in a RAS and used microbiological, histological and molecular-biological methods to identify the causative agents. Minor skin trauma led to the development of ulcers. In addition, several fillets of burbot showed pronounced granulomatous inflammation and calcification with signs of muscle fiber degeneration which resembled a condition called ‘sandy flesh disease’ in North American walleye. Several infectious agents were able to be excluded as a cause for the disease. Carnobacterium maltaromaticum was isolated in high numbers in some of the affected muscle tissue. However, the role of this bacterium or other causative agents or husbandry conditions remains to be elucidated.

Item Type:	Journal Article (Original Article)
Division/Institute:	School of Agricultural, Forest and Food Sciences HAFL School of Agricultural, Forest and Food Sciences HAFL > Agriculture School of Agricultural, Forest and Food Sciences HAFL > Agriculture > Livestock and Horses
Name:	Pietsch, Constanze0000-0002-3572-8945; Tschudi, F.; Baumann, S. and Schmidt-Posthaus, H.
Subjects:	Q Science > QL Zoology S Agriculture > SH Aquaculture. Fisheries. Angling
ISSN:	0177-5103
Publisher:	Inter-Research
Language:	English
Submitter:	Simon Lutz
Date Deposited:	21 Dec 2020 12:00
Last Modified:	23 Nov 2021 02:18
Publisher DOI:	10.3354/dao03494
Uncontrolled Keywords:	Aquaculture · Rearing conditions · Skin alterations · Sandy flesh disease
ARBOR DOI:	10.24451/arbor.13962
URI:	https://arbor.bfh.ch/id/eprint/13962