Gioacchini G, Lombardo F, Avella MA, Olivotto I, Carnevali O (2010) Welfare improvement using alginic acid in rainbow trout ( Oncorhynchus mykiss) juveniles. Gioacchini G, Smith P, Carnevali O (2008) Effects of Ergosan on the expression of cytokine genes in the liver of juvenile rainbow trout ( Oncorhynchus mykiss) exposed to enteric red mouth vaccine. Fish Shellfish Immunol 18(4):311–325įurne M, Hidalgo MC, Lopez A, Garcı-Gallego M, Morales AE, Domezain A, Domezaine J, Sanz A (2005) Digestive enzyme activities in Adriatic sturgeon Acipenser naccarii and rainbow trout Oncorhynchus mykiss. AOAC, Washingtonīagni M, Romano N, Finoia MG, Abelli L, Scapigliati G, Tiscar PG, Sarti M, Marino G (2005) Short- and long-term effects of a dietary yeast beta-glucan (Macrogard) and alginic acid (Ergosan) preparation on immune response in sea bass ( Dicentrarchus labrax). Asian Fish Sci 17:271–278Īssociation of Official Analytical Chemists (AOAC) (1998) Official methods of analysis, 16th edn. Aquaculture 280:185–189Īhilan B, Shine G, Santhanam R (2004) Influence of probiotics on the growth and gut microflora load of juvenile gold fish ( Carassius auratus). Present study suggests that Ergosan effectively promotes growth performance, lipase activity and gastrointestinal structure in rainbow trout.Ībdel-Tawwab M, Abdel-Rahman MA, Nahla-Ismael EM (2008) Evaluation of commercial live bakers’ yeast, Saccharomyces cerevisiae as a growth and immunity promoter for Fry Nile tilapia, Oreochromis niloticus (L.) challenged in situ with Aeromonas hydrophila. In Ergosan-treated group, higher percentage of goblet cell was shown in proximal intestine and pyloric caeca. Light microscopy demonstrated that both groups of fish displayed normal morphology of proximal intestine and pyloric caeca. Lipase activity and leukocyte and erythrocyte count also increased in juvenile fish fed Ergosan-treated diet compared to control ( P < 0.05). 111.22 g) and decreased feed conversion ratio (1.43 vs. Results of this study showed that Ergosan supplementation significantly increased weight gain (94.27 g vs. Rainbow trout (mean weight 100–110 g) were fed basal diet (control) and diet treated with Aquavac Ergosan (5 g kg −1 of diet) for 50 days. Present study examined the effects of Ergosan on growth performance, digestive enzyme activities, hematological parameters and gastrointestinal structure of rainbow trout.
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