Insect larvae meal as an alternative source of nutrients in the diet of Atlantic salmon (Salmo salar) postsmolt
Two insect meal (IM) products were tested as ingredient in diets for Atlantic salmon weighing ~250 g. The modern control diet contained 200 g kg−1 fish meal (FM100), which was stepwise replaced by insect meal A (IM A) as a 25% (A25), 50% (A50) or 100% (A100) FM replacement or insect meal B (IM B) as...
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Published in | Aquaculture nutrition Vol. 22; no. 6; pp. 1202 - 1213 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Oxford
Blackwell Publishing Ltd
01.12.2016
Hindawi Limited |
Subjects | |
Online Access | Get full text |
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Summary: | Two insect meal (IM) products were tested as ingredient in diets for Atlantic salmon weighing ~250 g. The modern control diet contained 200 g kg−1 fish meal (FM100), which was stepwise replaced by insect meal A (IM A) as a 25% (A25), 50% (A50) or 100% (A100) FM replacement or insect meal B (IM B) as a 25% (B25) or 100% (B100) FM replacement. Selected nutrient parameters and contaminants were measured in the diets. After 15 weeks, fish length and weight were recorded and visceral and hepatic indices calculated. Fatty acid and amino acid digestibility was calculated. Morphology of the liver, kidney, mid‐ and hind intestine was evaluated. Finally, a sensory testing of the fillets was conducted. A25, A50 and A100 performed equally well as the FM100 diet. The feed intake decreased moderately with increasing IM A inclusion; however, food conversion ratio decreased, resulting in an equal net growth of the fish. Histology did not show any differences between any of the dietary groups, and sensory testing of fillets from FM100, A100 and B25 did not reveal any significant differences in odour, flavour/taste or texture between groups. IM A was suitable to replace up to 100% of dietary FM, whilst IM B did not perform equally well. |
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Bibliography: | istex:19E6082BA6D86E43DBC352E8A23CF7007F82CD56 ArticleID:ANU12343 ark:/67375/WNG-KLTH027R-H ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1353-5773 1365-2095 |
DOI: | 10.1111/anu.12343 |