Effects of Stocking Density on Blood Cortisol, Glucose and Cholesterol Levels of Beluga juveniles (Huso huso Linnaeus, 1758) CulturedIn tropical climate
محل انتشار: کنفرانس بین المللی توسعه پایدار، راهکارها و چالش ها با محوریت کشاورزی، منابع طبیعی، محیط زیست و گردشگری
سال انتشار: 1393
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 795
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شناسه ملی سند علمی:
ICSDA01_0149
تاریخ نمایه سازی: 16 خرداد 1394
چکیده مقاله:
This study was conducted to investigate the influence of stocking density (1.5, 3, and 6 kg.m-2) on biochemical serum parameters including: Cortisol, Glucose and Cholesterol level of great sturgeon (Huso huso) juveniles in khouzestan province of Iran (Torrid Zone) for a period of 8 weeks. The mean weight of fish at the start of trial was 143±0.29gr (Mean±S.E). After 8 weeks of rearing, the mean weight was 527.27±6.82gr, 467.91± 18.81gr and 431.02±24.25gr (Mean±S.E) in densities 1.5, 3, and 6 kg.m-2 respectively. For purposes biochemical of blood plasma, concentration of cortisol, glucose and Cholesterol serum at the start trial was 8.57±1.1ng.ml-1, 70.12±3.6mg.dl-1, 46±17.5mg.dl-1(Mean±S.E) respectively. The results of this study showed that plasma Cortisol and glucose concentration were significantly difference between treatments-time, only in 30th day of rearing at treatment 3kg.m-2(P<0.05), but in 60th day had no significant difference among treatments-time (P>0.05). Cholesterol serum level has significant difference at density1.5kg.m-2in 30th and 60th day of rearing as compared to densities 3and6kg.m-2(P<0.05), but in densities 3and6kg.m-2Cholesterol concentration had no significant difference among treatments-time (P>0.05). Our results showed that rearing density has not a major effect on the growth, biochemical parameters of (H. huso).Unlike many other fish, great sturgeon exhibited lower stress responses to high stocking density. There is cortisol concentration the best index in relationship with physiological condition of species cultured and appointment stocking density.
کلیدواژه ها:
نویسندگان
Mazdak Aalimahmoudi
Science and Research Branch of Islamic Azad University, Department of Natural Resources on Aquaculture and Fisheries, Ahwaz, Iran.
Jasem ghafleh marammazi
the South Aquaculture Research Center (SIARC), P.O.Box: ۶۱۶۴۵-۸۶۶, Ahwaz, Khouzestan, Iran
Seyed Abdolsaheb mortazavizadeh
the South Aquaculture Research Center (SIARC), P.O.Box: ۶۱۶۴۵-۸۶۶, Ahwaz, Khouzestan, Iran
Narges javadzadeh poorshalkoohi
Departments of Fisheries, College of Agriculture, Ahwaz Branch, Islamic Azad University, Ahwaz, Iran
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