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Öğe Effect of feeding frequency on the growth and survival of Himri Barbel Barbus luteus (Heckel, 1843), fry under laboratory conditions(Asian Network for Scientific Information, 2008) Gokcek, C. Kaya; Mazlum, Yavuz; Akyurt, IhsanThe effect of feeding frequency on the growth performance, feed conversion ratio and survival of Himri Barbel, Barbus luteus, was investigated. Thirty fry (0.26±0.03 g) were stocked in 12 (80-L) (80×40×40 cm) aquaria and fed 3, 4, 5 and 6 times a day respectively for 60 days. Final body weights and SGR were measured significantly lower at D (6 times/day) and C (5 times/day) than B (4 times/day) and A (3 times/day) treatments (p<0.05). There were no significant differences for the FCR and survival rates (p>0.05). The results showed that weight gain and growth performance of Himri Barbel, B. luteus, fry were decreased with increased feeding frequency. © Asian Network for Scientific Information, 2008.Öğe The effect of stocking density on yield, growth, and feed efficiency of himri barbel (Barbus luteus) nursed in cages(Israeli Journal Of Aquaculture-Bamidgeh, 2007) Gokcek, C. Kaya; Akyurt, IhsanHimri barbel (Barbus luteus Heckel, 1843) fingerlings (mean wt 15.73 g) were stocked at 40, 60, 80, or 100 fish per cage in 1-m(3) cages suspended in a reservoir lake to determine total yield, growth rate, and feed efficiency after seven months. Total yields increased as the stocking density increased and were 3.59, 4.80, 6.32, and 7.91 kg per cage, respectively. The highest mean fish weight was obtained in the lowest stocking density. Neither the food conversion ratio nor the mortality rate was affected by stocking density.