Effect of autoclaved Ulva meal on growth performance, nutrient utilization and fatty acid profile of rainbow trout, Oncorhynchus mykiss

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“…Previous researches have declared that a low level dietary inclusion of Ulva meal (3-5 %) enhanced growth, feed utilization, immune response, and lipid mobilization in numerous finfish species such as gilthead seabream (Wassef et al, 2005), tilapia (Ergün et al, 2009), rainbow trout , mugil Mugil cephalus (Wassef et al, 2001), black sea bream Acanthopagrus schlegeli (Nakagawa et al, 1993) and snakehead Channa striatus (Hassan and Hashim, 1995). Other studies have shown that a 5% or 10% inclusion of dietary Ulva meal had no negative effects on the growth performance of juvenile European seabass Dicentrarchus labrax (Valente et al, 2006), tilapia , and rainbow trout, Oncorhynchus mykiss of different sizes (Güroy et al, 2013;Dantagnan et al, 2009;SolerVila et al, 2009).…”

“…Some dietary macroalge meals are improved the growth, lipid metabolism, physiological activity, stress response, disease resistance and carcass quality of various fish species (Ergün et al, 2009;Güroy et al, , 2013). Inclusion of dietary low level Ulva meal has been found to enhance growth performance and lipid deposition for several fish species including rainbow trout Oncorhynchus mykiss and tilapia Oreochromis niloticus Azaza et al, 2008;Ergün et al, 2009).…”

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“…As a result of the biochemical analysis, the differences between the crude protein and crude fat values of the experimental groups were not significant and the addition of Laurencia obtusa in the feed did not significantly affect the flesh quality. In other studies, it has been reported that the effect of macroalgae added to feeds on fish meat, particularly, lipid values (Ergün et al, 2009;Güroy et al, 2013). In different studies, it has been reported that skin pigmentation values increased in fish that were fed with feeds containing natural carotenoid sources (Gomes et al, 2002;Hancz, et al 2003;Diler, Hoşsu, Dilek, Emre, & Sevgili, 2005;Tejera, et al 2007;Kalinowski, Izquierdo, Schuchardt and Robaina, 2007;Lee et al, 2010).…”

“…In studies with green algae Ulva rigida; Ergün et al (2009) have reported that 5% inclusion of Ulva meal at both dietary lipid levels improved the growth performance, feed efficiency, and body composition of Nile tilapia (Oreochromis niloticus). In another study, Güroy, Ergün, Merrifield, and Güroy, (2013) have stated that the dietary inclusion of Ulva meal at levels of up to 10% can be used without significant negative effects on the growth performance of rainbow trout. At the end of the study, it was determined that the feed containing Laurencia obtusa, had an effect on feed intake and, therefore, on the growth of fish.…”

Effect of Use Fresh Macro Algae (Seaweed) Ulva fasciata and Enteromorpha flaxusa With or Without Artificial Feed on Growth Performance and Feed Utilization of Rabbitfish (Siganus rivulatus) fry

“…According to Chapman and Chapman [42], 100 g seaweed provides more than the daily requirement of Vitamin A, B1 and B12 and two thirds of Vitamin C. Also seaweeds are natural sources of hydrosoluble and liposoluble vitamins, such as thiamine and riboflavin, b-carotene and tocopherols, as well as of long-chain polyunsaturated essential fatty acids from the omega-3 (ω-3) (family such as eicosapentaenoic acid [43]. Moreover, Some dietary macroalge meals are improved the growth, lipid metabolism, physiological activity, stress response, disease resistance and carcass quality of various fish species [44][45][46]. So gut weed can be used as a direct feed or as ingredient in diets for herbivorous fish according to Teimouri et al [47].…”