Sürdürülebilir Kalkınma Amaçları

• 1

• MakaleAçık Erişim2018Scopus SJRQ3/r/munzur/3382
  In vitro effect of L-tryptophan on the quality and fertilizing capacity of sperms of endangered species of trouts

  Kutluyer, Filiz

  The present study was focused on determining the effect of L-tryptophan on quality of sperm and its fertilizing capacity in endangered trout Salmo coruhensis, Anatolian trout Salmo rizeensis and rainbow trout Oncorhynchus mykiss. Different activation media (NaCl, 0.3%; NaHCO3, 1%) were supplemented with L-tryptophan [Control (0), 0.5, 1, 2, 3, 4 and 5 mM] for assessing sperm motility and its duration, fertility and hatching rate of eggs. The results from the present study indicated that addition of L-tryptophan increased the motility rate and duration in O. mykiss, S. rizeensis and S. coruhensis compared to control group. Highest sperm motility rate and its duration, and fertility and hatching rate of eggs of O. mykiss, S. rizeensis and S. coruhensis were 0.5 mM, 5 mM and 2 mM, respectively. To conclude, sperm quality and fertility were positively affected by quantitative changes different concentrations of L-tryptophan. In addition, L-tryptophan can be used in activation medium for O. mykiss, S. rizeensis and S. coruhensis. Copyright 2018 Zoological Society of Pakistan.

  • 
  AtıfScopus12·WoS12·OpenAlex10

  İncele
• MakaleYalnız künye2014Scopus SJRQ3/r/munzur/4656
  Age Determination of Red-Spotted Trout (Salmo macrostigma) Inhabiting Munzur Stream, Turkey

  Basusta, Asiye; Basusta, Nuri; Aydin, Rahmi; Ozer, Ebru I.; Girgin, Hulya

  The goal of this study was to determine the best bone structure for age determination in Salmo macrostigma. During the study, comparative age determinations were performed on a total of 243 fish samples by using the operculum, suboperculum, preoperculum, interoperculum and vertebrae bony structures. In comparing the ages of five bony structures, the least agreement was 90.79% at the ages of the interoperculum-vertebrae and preoperculum-interoperculum. The most agreement was 99.59% at the ages of operculum-suboperculum. The biggest age difference amongst bony structures was 2. The clearest age ring was observed on the operculum and suboperculum bones.

  AtıfWoS1

  İncele
• MakaleYalnız künye2014Scopus SJRQ3/r/munzur/4794
  Length-Weight Relationship and Condition Factor of Hippocampus hippocampus and Hippocampus guttulatus Inhabiting Eastern Black Sea

  Basusta, Asiye; Özer, Ebru I.; Girgin, Hulya; Serdar, Osman; Basusta, Nuri

  In this study,. length weight relationships, of two seahorse species were determined inhabiting Eastern Black Sea. Hippocampus hippocampus (38) and Hippocampus guttulatus (139) individuals were obtained by commercial fishermen in the Eastern Black Sea. Length-weight relationships of H hippocampus were found as W=0.012TL(2 41) (R-2=0,90) and length-weight relationships of H. guttulatus were found as W=0.005TL(2.84) (R-2=0.91). for all individuals. The type of growth for both sexes was negative allometric growth (b<3) for these species. Average condition factors of H. hippocampus and H. guttulatus have shown 0.38 and 0.41, respectively.

  AtıfWoS13

  İncele
• MakaleYalnız künye2010Scopus SJRQ3/r/munzur/4942
  Variation in Advertisement Call Properties of the Japanese Quail

  Sezer, M.; Tekelioglu, O.

  The aim of this study was to investigate the amount variation in four spectral and six temporal properties of advertisement calls between and within-male Japanese quail and to establish the effect of age of sexual maturation to these properties. The first, second, third syllables and damping parts were 68.2, 74.3, 501.1 and 95.9 ms long, on average, and had peak frequencies of 1719.9, 1989.9, 2203.2 and 2352.7 Hz, respectively. There was high between individual variations in all call traits. In relation to within-male variation, there were high medians and low ranges for spectral properties while low medians and high ranges for temporal properties. Moderate positive correlations between syllable lengths and age of sexual maturation, low negative correlations between interval lengths and age of sexual maturation were observed. Repeatability of the advertisement call characteristics were hid, but estimates for spectral properties were slightly lower (0.66-0.82) than that for temporal properties (0.89-0.96). These results suggest that temporal call parameters have the potential to be used in individual identity and these traits might carry information used by females in mate choice. Spectral properties could be recognized as stable call properties that may be used in efficient transmission or species recognition.

  AtıfWoS3

  İncele