Journal ArticleDOI
Effects of graded levels of standard soybean meal on intestinal structure, mucosal enzyme activities, and pancreatic response in Atlantic salmon (Salmo salar L.)
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A negative, dose-dependent effect of SBM was observed on nearly all performance parameters with a notable exception of feed intake and the results suggest that caution should be exercised in the use of even low levels of extracted SBM in salmon feeds.Abstract:
Duplicate tanks of c.280 g Atlantic salmon (Salmo salar L.) were fed for 60 days on diets in which fishmeal was substituted with graded levels of extracted soybean meal (SBM) comprising 0%, 10%, 15%, 20%, 25% or 35% of total protein. The effects on feed intake, growth, feed conversion, apparent digestibility and utilization of macronutrients and energy, pathohistological response of the distal intestine (DI), activities of digestive enzymes in the mid and distal intestinal mucosa, and faecal trypsin and plasma insulin concentrations were studied. A negative, dose-dependent effect of SBM was observed on nearly all performance parameters with a notable exception of feed intake. The lowest SBM inclusion level of 10% resulted in moderate pathohistological changes in the DI. Each subsequent increase in SBM level increased the number of fish displaying severe changes. In contrast to the mid-intestine (MI), all enzyme activities in the distal intestinal mucosa decreased dose-dependently with increasing SBM inclusion. Faecal trypsin increased up to an SBM inclusion level of 20% and then levelled off. Plasma insulin increased from 0% to 15% SBM inclusion and then decreased. The results suggest that caution should be exercised in the use of even low levels of extracted SBM in salmon feeds.read more
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Expanding the utilization of sustainable plant products in aquafeeds: a review
Delbert M. Gatlin,Frederic T. Barrows,Paul B. Brown,Konrad Dabrowski,T. Gibson Gaylord,Ronald W. Hardy,Eliot M. Herman,Gongshe Hu,Åshild Krogdahl,Richard Nelson,Kenneth E. Overturf,Michael B. Rust,Wendy M. Sealey,Denise I. Skonberg,Edward Souza,David A.J. Stone,Rich Wilson,Eve Syrkin Wurtele +17 more
TL;DR: This document reviews various plant feedstuis, which currently are or potentially may be incorporated into aquafeeds to support the sustainable production of various ¢sh species in aquaculture and strategies and techniques to optimize the nutritional composition and limit potentially adverse eiects of bioactive compounds are described.
Journal ArticleDOI
Utilization of plant proteins in fish diets: effects of global demand and supplies of fishmeal
TL;DR: For some species of farmed fish, continued reduction in fishmeal and fish oil levels is likely and complete replacement of fishmeal in feeds for marine species is more difficult and will require further research efforts to attain.
Journal ArticleDOI
A feed is only as good as its ingredients – a review of ingredient evaluation strategies for aquaculture feeds
TL;DR: Issues relating to feed intake are the key performance criteria in palatability assessments, and it is important that such experiments maintain sufficient stringency to allow some self-discrimination of the test feeds by the fish.
Journal ArticleDOI
Important antinutrients in plant feedstuffs for aquaculture: an update on recent findings regarding responses in salmonids
TL;DR: Anoverview ofantinutritivefac-tors (ANFs) relevant for ¢sh nutrition is presented and strengthening of the knowledge base is urgently needed to understand the eiects and to overcome or modify these eiECTs.
Journal ArticleDOI
Effect of fish meal replacement by plant protein sources on non-specific defence mechanisms and oxidative stress in gilthead sea bream (Sparus aurata)
Ariadna Sitjà-Bobadilla,Samuel Peña-Llopis,Pedro Gómez-Requeni,Françoise Médale,Sadasivam Kaushik,Jaume Pérez-Sánchez +5 more
TL;DR: Partial or total replacement of fish meal by a mixture of plant protein (PP) sources (corn gluten, wheat gluten, extruded peas, rapeseed meal and sweet white lupin) balanced with indispensable amino acids was examined in juvenile gilthead sea bream over the course of a 6-month growth trial as mentioned in this paper.
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Über die quantitative Bestimmung von Lipoiden (Mikromethode) mittels der vielen natürlichen Lipoiden (allen bekannten Plasmalipoiden) gemeinsamen Sulfophosphovanillin-Reaktion
Nepomuk Zöllner,Katharina Kirsch +1 more
TL;DR: The Sulfophosphovanillin reaction (SPV-Reaktion) von Chabrol u.Charonnat wurde auf Chemismus und Anwendungsmoglichkeiten untersucht as mentioned in this paper.
Journal ArticleDOI
Partial or total replacement of fish meal by soybean protein on growth, protein utilization, potential estrogenic or antigenic effects, cholesterolemia and flesh quality in rainbow trout, Oncorhynchus mykiss
Sadasivam Kaushik,Jean-Pierre Cravedi,Jean-Paul Lallès,J. Sumpter,Benoit Fauconneau,M. Laroche +5 more
TL;DR: Physical and sensory quality of fish flesh were little affected by dietary treatments, and plasma vitellogenin levels were not significantly affected by the dietary levels of protein from soybean.
Journal ArticleDOI
Toxicology rethinks its central belief
TL;DR: Hormesis demands a reappraisal of the way risks are assessed for the first time in 25 years.
Journal ArticleDOI
Digestibility determination in fish using chromic oxide marking and analysis of contents from different segments of the gastrointestinal tract
TL;DR: It was concluded that absorption occurs in all parts of the alimentary tract, and that it is important to limit the stripping of faeces for analysis in digestibility studies to the hindmost part of rectum, i.e. from the ventral fin to anus.
Journal ArticleDOI
Development and regression of soybean meal induced enteritis in Atlantic salmon, Salmo salar L., distal intestine: a comparison with the intestines of fasted fish
G Baeverfjord,Åshild Krogdahl +1 more
TL;DR: The development of a pathological condition in the distal intestine of Atlantic salmon, Salmo salar L., induced by dietary soybean meal, was studied and a pathogenesis involving immunological mechanisms is suggested.
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