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Article Details

Article Details

  • Article Code : FIRAT-AKADEMI-8802-5481
  • Article Type : Araştırma Makalesi
  • Publication Number : 5A0169
  • Page Number : 104-111
  • Doi : 10.12739/NWSA.2022.17.3.5A0169
  • Abstract Reading : 904
  • Download : 233
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Issue Details

  • Year : 2022
  • Volume : 17
  • Issue : 3
  • Number of Articles Published : 5
  • Published Date : 1.07.2022

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Dergi Kapağı
Ecological Life Sciences

Serial Number : 5A
ISSN No. : 1308-7258
Release Interval (in a Year) : 4 Issues

Hasan KESİMOĞLU1 , Kenan KÖPRÜCÜ2

Keywords
Avrupa Yayın Balığı, Kortizol, Glikoz, Stoklama Yoğunluğu, Stres,

EFFECTS OF STOCKING DENSITY ON CORTISOL AND GLUCOSE LEVELS IN BLOOD SERUM OF EUROPEAN CATFISH (Silurus glanis Linnaeus, 1758)

Hasan KESİMOĞLU1 , Kenan KÖPRÜCÜ2

In this study, the serum cortisol and glucose levels in the European catfish (Silurus glanis) stocked at the different densities were investigated. For this purpose, a control (0.06kg fish/L) and D1 (0.08kg fish/L), D2 (0.10kg fish/L) and D3 (0.12kg fish/L) stoking groups were formed. Experiments were carried out in glass aquariums in triplicate. The water temperature in the aquariums was 22±2Co and the dissolved oxygen level was set to 9mg/L. In the experiment, fish with an initial weight of 64±2g were used. The daily feed amount to be given to the fish was calculated taking into account the feeding coefficient and live weights of the fish, and this amount was given to the fish for 60 days with three times. Blood samples to determine the cortisol and glucose levels in the serum were take from the fish at 1, 15, 30, 45 and 60 days of the experiment. The cortisol and glucose levels in blood serum samples was determined in ELISA using appropriate kits. During the trial no fish deaths were observed in any stocking group. However, it was determined that there was a significant increase in the cortisol (20.60-30.04mg/dl) and glucose (74.97-89.78mg/dl) levels in blood serum of fish at high stocking densities (p<0.05). The best results in terms of cortisol and glucose values were obtained from fish in the control and D1 stocking groups (p>0.05). This showed that stocking densities higher than 0.08kg/L cause stress in fingerling European catfish.

Keywords
European Catfish, Cortisol, Glucose, Stoking Density, Stress,

Details
   

Authors

Hasan KESİMOĞLU (1)

hasan_32_kemaliye@hotmail.com | 0000-0001-7639-047X

Kenan KÖPRÜCÜ (2) (Corresponding Author)
Fırat Üniversitesi
kkoprucu@firat.edu.tr | 0000-0002-5697-5224

Supporting Institution

 : The Firat University Scientific Research Projects Unit

Project Number

 : SÜF.16.11

Thanks

 : We are grateful to the Firat University Scientific Research Projects Unit for financially supported this project [INJ]Project No: SÜF.16.11[INJ].
References
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