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    Beneficial effects of Oral Allspice, Pimenta dioica powder supplementation on the hemato-immunological and serum biochemical responses of Oreochromis mossambicus
    (Wiley, 2016) Gullu, Kenan; Acar, Umit; Kesbic, Osman Sabri; Yılmaz, Sevdan; Agdamar, Sevan; Ergün, Sebahattin; Turker, Ali
    The present study investigated the effects of dietary allspice powder supplementation on welfare status of Tilapia, Oreochromis mossambicus assessed by hemato-immunological and serum biochemical parameters. Five diets were formulated to contain 0 (control), 5, 10, 15 or 20g of allspicekg(-1) of fish feed. Fish were fed experimental diets for 60days. Supplementation of allspice powder at 10gkg(-1) positively influenced the serum glucose, plasma lysozyme activity and myeloperoxidase activity. Dietary allspice powder at 15gkg(-1) also positively influenced the serum biochemical parameters (total protein, albumin and globulin) and plasma lysozyme activity. However, 20gkg(-1) allspice powder group had significantly lower values of respiratory burst activity and red blood cell count than other experimental groups (P<0.05). In conclusion, the results of the present study demonstrated that supplementation of allspice powder at 10 or 15gkg(-1) for 60days, had beneficial effects on improvement of some immunological and serum biochemical status of O. mossambicus. These findings suggest that dietary supplementation of allspice powder might further improve the resistance to fish pathogens.
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    Öğe
    Optimal Dietary Protein Levels in Juvenile Electric Blue Cichlid (Sciaenochromis fryeri)
    (Israeli Journal Of Aquaculture-Bamidgeh, 2008) Gullu, Kenan; Guroy, Derya; Ceiik, Ihsan; Tekinay, Ahmet Adem
    A feeding trial was conducted to determine the dietary protein requirement of juvenile electric blue cichlids (Sciaenochromis fryeri). Groups of fish (0.50 +/- 0.01 g) were fed one of four isocaloric diets containing protein levels ranging 35-50% for 12 weeks. According to the broken-line model, the dietary protein requirement was estimated as 38.8%. The feed conversion ratio ranged from 1.73 in the 50%-protein group to 2.16 in the 35% group. There were statistically significantly differences in feed intake and protein efficiency ratio. In general, the protein efficiency ratio decreased as the dietary protein level increased. For optimum growth, feed conversion, and protein utilization, a diet containing 39-40% protein, 11% crude lipid, and 20.7 MJ gross energy/kg diet is recommended for juvenile S. fryeri.