Effects of Partial Replacement of Fish Meal Protein by Microalgae on Growth, Feed Intake, and Body Composition of Atlantic Cod
By Abigail B. Walker, D. Berlinsky. North American Journal of Aquaculture, 2011
125 citations recorded by the source corpus.
Abstract A feeding trial was conducted with juvenile Atlantic cod Gadus morhua (initial mean weight, 40.7 g) in which a combination of dried Nannochloropsis sp. and Isochrysis sp. replaced fish meal protein in isonitrogenous, isocaloric diets. Three experimental diets (55% protein, 16.5% fat; calculated gross energy = 5,328 kcal/kg) were formulated to replace 0, 15, or 30% of dietary fish meal protein. At the conclusion of the 84-d study, no differences in survival, feed conversion ratios, viscerosomatic indices, and n-3 and n-6 fatty acids in the muscle were found among the treatment groups. Feed intake and growth, which were proportional to the level of algal incorporation, were significantly reduced in the algae-fed fish and were probably due to palatability problems. Feed intake improved in the fish fed the diet with 15% fish meal protein replacement as the study progressed, but hepatosomatic indices indicate that those fed the diet with 30% replacement were approaching starvation. Received July 13, 2...
Subfields: Aquatic Science, Global and Planetary Change, Physiology
View Paper: https://www.semanticscholar.org/paper/c80ba3f25dab706b1e75200e0383cd8895de96ed
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In Aquatic Science
Citations in the corpus
- Microalgae in aquafeeds for a sustainable aquaculture industry (2018, background): “Feed intake and growth improved in the carnivorous fish (juvenile Atlantic cod, Gadus morhua) fed the diet with 15% fishmeal protein replacement by algal meal (combination of dried Nannochloropsis sp. and Isochrysis sp.) (Walker and Berlinsky 2011).”
- A Review on the Use of Microalgae for Sustainable Aquaculture (2019, background): “For example, in the culture of Atlantic cod, with the increase of microalgae content (0%–30%) in fish-meal, most growth parameters, including final body weight, absolute feed intake, and specific growth rate, decreased but mortality increased [90].”