tailieunhanh - Combined effects of temperature and salinity and induced stress on some hematological parameters of tra catfish (pangasianodon hypophthalmus) fingerlings

Three separate experiments were carried out to assess combined effects of temperature and salinity and induced stress on blood variables of Tra catfish (Pangasianodon hypophthalmus) fingerlings. Some hematological parameters included Haemoglobin concentration, glucose and pH levels which were tested in different conditions. The experiment 1 aimed to test how blood variables change in different temperature (24, 28-30, 32 oC) and salinity (0, 6 and 12 ppt) while the experiment 2 induced catfish fingerlings to different stress time (5, 15 and 30 min.). | Combined effects of temperature and salinity and induced stress on some hematological parameters of tra catfish (pangasianodon hypophthalmus) fingerlings AGU International Journal of Sciences – 2019, Vol 7 (3), 37 – 46 COMBINED EFFECTS OF TEMPERATURE AND SALINITY AND INDUCED STRESS ON SOME HEMATOLOGICAL PARAMETERS OF TRA CATFISH (Pangasianodon hypophthalmus) FINGERLINGS Dang The Luc1 1 An Giang University, VNU - HCM Information: ABSTRACT Received: 17/10/2018 Three separate experiments were carried out to assess combined effects of Accepted: 08/07/2019 temperature and salinity and induced stress on blood variables of Tra catfish Published: 11/2019 (Pangasianodon hypophthalmus) fingerlings. Some hematological parameters Keywords: included Haemoglobin concentration, glucose and pH levels which were tested Pangasianodon hypophthalmus, in different conditions. The experiment 1 aimed to test how blood variables temperature, salinity, change in different temperature (24, 28-30, 32 oC) and salinity (0, 6 and 12 Haemoglobin, glucose, stress ppt) while the experiment 2 induced catfish fingerlings to different stress time (5, 15 and 30 min.). Additionally, combined effects of all factors (temperature, salinity and induced stress) on fish blood parameters were also determined in the experiment 3. Results showed that in normal condition, the mean Hb concentration and glucose levels of blood varied from – g/dL, and from – mmol/L, respectively and mean pH ranged from – . The concentration of Hb, glucose and pH levels changed when temperature increased from 24 to 32oC. After 30 stress minutes, there was only glucose levels influenced. Moreover, there were significant interaction effects among temperature, salinity and stress level on blood variables. The findings revealed that the physiology of Tra catfish fingerling could be affected after 5 stress minutes at temperature of 24oC and 32oC with

• Sinh học
• Temperature hematological parameters of tra catfish
• Salinity and induced stress on some hematological parameters of tra catfish
• Pangasianodon hypophthalmus fingerlings
• Negative correlation between Hb concentrations
• Stress for aquatic animal