학술논문
In vitro modelling of the influence of alternative feeds (Hermetia illucens, Arthrospira platensis) on the resistance of different rainbow trout populations (Oncorhynchus mykiss) against the viral haemorrhagic septicaemia virus and Yersinia ruckeri.
Document Type
Academic Journal
Author
Bauer J; Fish Disease Research Unit, University of Veterinary Medicine Hannover, Hannover, Germany.; Adamek M; Fish Disease Research Unit, University of Veterinary Medicine Hannover, Hannover, Germany.; Miebach AC; Fish Disease Research Unit, University of Veterinary Medicine Hannover, Hannover, Germany.; Gährken J; Aquaculture and Water Ecology, University of Goettingen, Goettingen, Germany.; Wessels S; Aquaculture and Water Ecology, University of Goettingen, Goettingen, Germany.; Tetens J; Aquaculture and Water Ecology, University of Goettingen, Goettingen, Germany.; Dietz C; Department of Animal Sciences, Animal Nutrition Physiology, University of Goettingen, Goettingen, Germany.; Sünder A; Department of Animal Sciences, Animal Nutrition Physiology, University of Goettingen, Goettingen, Germany.; Matras M; National Veterinary Research Institute, Puławy, Poland.; Stachnik M; National Veterinary Research Institute, Puławy, Poland.; Reichert M; National Veterinary Research Institute, Puławy, Poland.; Steinhagen D; Fish Disease Research Unit, University of Veterinary Medicine Hannover, Hannover, Germany.
Source
Publisher: Blackwell Scientific Publications Country of Publication: England NLM ID: 9881188 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1365-2761 (Electronic) Linking ISSN: 01407775 NLM ISO Abbreviation: J Fish Dis Subsets: MEDLINE
Subject
Language
English
Abstract
Replacing fishmeal, a finite resource with high market demand, in the diet of carnivorous rainbow trout with proteins from alternative sources may be a challenge for these fish. Therefore, this study investigated whether replacing fishmeal with protein derived from Hermetia illucens or Arthrospira platensis could promote disease susceptibility in local trout populations with different growth performance. This was assessed in vitro by measuring susceptibility to infection with the viral haemorrhagic septicaemia virus (VHSV) or the bacterium Yersinia ruckeri. Analysis of fin tissue explants and primary cell cultures from scales from the three trout populations infected in vitro with VHSV and gill explants infected with Y. ruckeri showed no significant differences in virus replication or bacterial counts. Evaluation of the virucidal or bactericidal effect of skin mucus showed a significant reduction in viral load and bacterial count for all samples with mucus addition, but no significant difference was observed between the experimental groups. This study documents no apparent impairment of innate immune mechanisms in the skin and gills of trout after feeding a diet replacing fishmeal with Arthrospira or Hermetia proteins. This underlines the potential of these alternative protein sources for the further development of sustainable trout aquaculture.
(© 2023 The Authors. Journal of Fish Diseases published by John Wiley & Sons Ltd.)
(© 2023 The Authors. Journal of Fish Diseases published by John Wiley & Sons Ltd.)