Effects of Algae Meal as Feed Additive on Growth, Feed Efficiency, and Body Composition in Red Sea Bream

Abstract

The efficacy of three different algae (Ascophyllum nodosum, Porphyra yezoensis, and Ulva pertusa) were compared in fingerling red sea bream Pagrus major. Oregon moist diet containing 5% of algae meal were fed for 41 days and the effects were monitored in terms of growth, feed efficiency, and body composition.Feeding algae commonly elevated body weight grain, and tended to increase feed efficiency and muscle protein deposition. Algae-fed groups were higher in liver glycogen and triglyceride accumulation in muscle. Feeding Porphyra showed the most pronounced effects on growth and energy accumulation, followed by Ascophyllum and Ulva. The results suggest the practical efficacy of using algae as a feed additive for the effective use of nutrients in cultured fish.

Growth performance, body composition and fatty acid profile of liver and muscle in tilapia, Oreochromis mossambicus (Peters, 1852) fed algal meal incorporated diets

“…It was possible to include algal meal up to 40% of the total diet without any adverse effect on the growth of tilapia which is in agreement with earlier report on rohu (Mishra, 2000). However, Mustafa et al (1995) included algal meal up to a level of 5% for red sea bream. Wee and Wang (1987) successfully used soaked Leucaena leaf meal up to 25% of the total protein which accounts up to a level of 31% of the total diet in the tilapia diet.…”

“…Wee and Wang (1987) successfully used soaked Leucaena leaf meal up to 25% of the total protein which accounts up to a level of 31% of the total diet in the tilapia diet. Based on the nutritional value of marine algae (Brown et al, 1997), their use in mariculture has been emphasised (Mustafa et al, 1995). However, the use of freshwater algae for the culture of fish is limited which may be because of the fact that their nutritional value is not well known (Ahlgren, 1992).…”

“…Fish mobilises saturated and monoenoic fatty acid as source of energy and retains polyunsaturated fatty acids (PUFA) in the body (Steffens, 1997). It has been confirmed that inclusion of algae in the diet significantly improves growth rate in red sea bream (Mustafa et al, 1995) and common carp (Oramary et al, 2016). On the other hand, the deficiency of dietary PUFA has been reported to affect body compositional changes in fish (Lund et al, 2014).…”

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“…Recently, several studies have been focused on n-3 LC-PUFA production from microalgae (Kyle and Gladue, 1991;Kyle et al, 1992;de Swaaf, 2003;Pulz and Gross, 2004;Ratledge, 2004;Spolaore et al, 2006;Ganuza and Izquierdo, 2007;Castillo et al, 2009) and its effectiveness on partial or complete replacement of fish oil in marine fish feeds (Mustafa et al, 1995;Navarro and Sarasquete, 1998;Miller et al, 2007;Atalah et al, 2007;Ganuza et al, 2008;Eryalçın et al, 2013). Microorganism produced n-3 LC-PUFA oils in marine feeds should be obtained by not only one species but also more than one microorganism species, in order to sustain better n-3 LC-PUFA composition and to create a wide range of fatty acid composition (Harel et al, 2002).…”

Phenolcarbonic Aceds and Total Phenolics of Plant Origin in Intestine Contents of three Cyprinid Fishes from the Danube River

“…[7][8] Some recent data indi cate the presence of different algal species in fish diet and their effects on growth of fish, accumulation of fats and proteins in fish and some blood parameters. [9][10][11][12] The present study deals with the composition of phenol carbonic acids and the determination of total plant phenol ics in the intestine content of some Danubian cyprinids which prey mainly on microalgae. A possible role of these algal phenolics in fishes is discussed, considering data of positive and negative influences of plant phenolics on animal and human organisms.…”