ISSN:
1573-143X
Keywords:
Atlantic salmon (Salmo salar)
;
Digestion
;
Enzymes
;
Growth
;
Morphometrics
;
Protein
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract Growth and in vitro digestion was examined in three iso-trypsin phenotypes (patterns 1, 2 and 2′) of Atlantic salmon, Salmo salar. Fish grew equally well during the 128 day experiment irrespective of phenotype. At day 64 and 91, weight-specific growth rate of 2′ phenotype animals were significantly lower (p 〈 0.05). At the end of the experiment, significant differences (p 〈 0.05) were noted between groups with respect to size. An in vitro method was used to examine protein digestion by the different trypsin phenotypes. Three fish meals (FM I 〉 FM II 〉 FM III) of high, medium and low quality, as defined by chemical analyses, were used. Phenotype 1 was able to differentiate between three fish meals ranking FM I 〉 FM II 〉 FM III. In contrast, phenotypes 2 and 2′ were not able to separate between meals. In vitro digestion efficiency was dependent upon the three salmon types, ranking phenotype 2 〉 1 = 2′.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1009269703297
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