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    Evaluation of sesame (Sesamum indicum) seed meal as a replacer for soybean meal in the diets of rainbow trout (Oncorhynchus mykiss Walbaum, 1792)
    (Ege Üniversitesi, 2017) Dernekbasi, Seval; Karayücel, İsmihan; Akyüz, Ayse Parlak
    A 60-day feedingtrial was conducted to asses the potential nutritive value of sesame seed mealas a dietary replacement for soybean meal in the diets of rainbow trout (Oncorhynchus mykiss Walbaum, 1792). Alldiets were prepared to be isonitrogenous (49% protein), isolipidic (19% lipid)and isoenergetic (22 kJ g-1). Four different diets containing 0% (C), 10%(10SSM), 15% (15SSM) and 20% (20SSM) sesame seed meal were formulated forrainbow trout with a mean weight of 81.02±0.02 g and fish were hand fed feedtwice a day to apparent satiety under a natural light regime. At the end ofstudy, significant differences were found in final body weight, weight gain andspecific growth rate (SGR, %) between control group (C) and the experimentalgroups (p<0.05). While there were no significant differences between theexperimental groups in terms of feed conversion ratio (FCR) and proteinefficiency rate (PER) (p>0.05), Apparent Net Protein Retention (ANPR)differed significant between C and 10SSM and 15SSM and 20SSM groups(p<0.05). The moisture, protein, lipid and ash contents in the bodycomposition of the fish increased in all experimental groups. The moisture, lipidand ash content were not significantly differed among the groups (p>0.05)but protein contents of fish in 15SSM and 20SSM groups was significantly higherthan fish in control and 10SSM groups (p<0.05). There were also nodifferences in the digestibility of crude protein among groups (p>0.05).Comparable performance in growth, nutrient utilization and crude proteindeposition of rainbow trout fed by diet containing 15% sesame seed meal showedthat these meals could be used as this rate.