Modeling optimal dietary pigmentation strategies in farmed Atlantic salmon: Application of mixed-integer non-linear mathematical programming techniques

The most important visual quality characteristic of Atlantic salmon is the red/pink flesh color. The primary source of this coloration in salmon is caused by deposition of relatively large amounts of pigments, such as astaxanthin, obtained from their diet. Astaxanthin is expensive, and in commercial...

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Veröffentlicht in:Aquaculture Jg. 261; H. 1; S. 118 - 124
Hauptverfasser: Forsberg, Odd Inge, Guttormsen, Atle G.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Amsterdam Elsevier B.V 16.11.2006
Elsevier Science
Elsevier Sequoia S.A
Schlagworte:
algorithms
Animal aquaculture
animal morphology
Animal productions
Animal, plant and microbial ecology
Aquaculture
Astaxanthin
Biological and medical sciences
Coloration
Commercial fish farms
Diet
feed supplements
fish culture
fish farms
Fundamental and applied biological sciences. Psychology
General aspects
General aspects. Techniques
Marine
Mathematical models
Mathematical programming
Methods and techniques (sampling, tagging, trapping, modelling...)
nonlinear models
Phytochemicals
pigmentation
Salmo salar
Salmon
Commercial fish farms
Astaxanthin
Coloration
Mathematical programming
Salmonidae
Farming animal
Xanthophyll
Salmo salar
Modeling
Pigmentation
Vertebrata
Optimal strategy
Diet
Pisces
Pisciculture
Aquaculture
ISSN:0044-8486, 1873-5622
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Zusammenfassung:The most important visual quality characteristic of Atlantic salmon is the red/pink flesh color. The primary source of this coloration in salmon is caused by deposition of relatively large amounts of pigments, such as astaxanthin, obtained from their diet. Astaxanthin is expensive, and in commercial farming practice, dietary color pigments comprises about 15–20% of the total feed cost. One important operational process in commercial fish farms is therefore to minimize pigment costs. Based on recent models on the effects of dietary pigment concentration and fish size on visual color perception of Atlantic salmon, this study has built a mathematical programming model designed to optimize dietary astaxanthin concentrations throughout the grow-out period that results in well-pigmented fish at minimum cost. We have applied a mixed-integer non-linear programming algorithm to solve this problem. Various managerial implications of applying optimization models in product quality management of farmed salmon are discussed.
Bibliographie:http://dx.doi.org/10.1016/j.aquaculture.2006.06.049
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ISSN:0044-8486
1873-5622
DOI:10.1016/j.aquaculture.2006.06.049