Sürdürülebilir Kalkınma Amaçları

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• MakaleYalnız künye2014Scopus SJRQ3/r/munzur/3993
  Use of Clove Oil and Eugenol to Anesthetize Fingerling Shabut Barbus grypus

  Ögretmen, Fatih; Gölbasi, Selami; Inanan, Burak E.; Kizak, Volkan; Kayim, Murathan

  In this study, the efficacy of four doses of clove oil and eugenol were compared to sedate fingerling Shabut Barbus grypus to various stages of sedation and recovery. The results from the present study indicated that effective concentrations were at 50L/L for eugenol (induction time: 58 8s; recovery time: 199 +/- 15s [mean +/- SD]) and clove oil (induction time: 76 +/- 6s; recovery time: 161 +/- 34s). The induction times decreased significantly with the increasing concentrations of clove oil and eugenol, while recovery times increased with increasing concentrations of anesthetic (P < 0.05). Exposure of fish to 75 or 100L/L clove oil or to 50, 75, or 100L/L eugenol resulted in mean induction times 1min. Fish did not become fully sedated within 3min when treated with 25L/L clove oil. Other concentrations of both anesthetics, fish reached to full induction at 3min and recovered from anesthesia 5min. Our results showed the clove oil and eugenol are effective anesthetics for fingerling Shabut when used at concentrations of 50-100L/L. Received March 25, 2013; accepted July 5, 2013

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• MakaleYalnız künye2013Scopus SJRQ3/r/munzur/4366
  The Effect of Different Feeding Protocols on Compensatory Growth of Black Sea Trout Salmo trutta labrax

  Kocabas, Mehmet; Basçinar, Nadir; Kayim, Murathan; Er, Halil; Sahin, Halit

  The objective of this study was to determine the effects of different feeding protocols on compensatory growth, feeding rate, and feed conversion efficiency of Black Sea Trout Salmo trutta labrax. To our knowledge, no previous feeding experiments with Black Sea Trout have incorporated a fasting period to simulate the handling and acclimation conditions experienced by farmed fish. Fifteen fish per tank (10.69 +/- 0.06cm and 13.22 +/- 0.14g, mean +/- SE) were stocked into 40-L fiberglass tanks. Fish were fed with different fasting-feeding regimes for 95 d and were equally allotted to four treatments (T-cont: control; T5-10: 5 d fasting, 10days feeding; T10-10: 10 d fasting, 10 d feeding; and T15-10: 15 d fasting, 10 d feeding) with three replicates per treatment. The results indicated that length (P = 0.0005), weight (P = 0.000), condition factor (P = 0.013), and specific growth rate (P = 0.014) were significantly affected by the interaction between feeding and time. All fasting treatments showed partial compensation during refeeding. There was an increase in daily feeding rate and feed conversion efficiency in fasting treatments compared with the control treatment. In contrast, at the end of the experiment specific growth rate, condition factor, and body weight in fasting treatments were significantly lower compared with the control treatment. We concluded that there was partial compensation of growth with regular refeeding after periods of feed deprivation (e.g., 5, 10, or 15 d) over a long term and a shorter fasting period may be preferred in order to achieve compensatory growth. Received November 9, 2012; accepted April 9, 2013

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