Research Article:The effect of Biofloc system on water quality, growth and hematological indices of Juvenile great sturgeon (Huso huso)
Publish place: Iranian Journal of Fisheries Sciences، Vol: 20، Issue: 5
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
View: 201
This Paper With 16 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_JIFRO-20-5_016
تاریخ نمایه سازی: 23 بهمن 1400
Abstract:
The basis of biofloc technology is biomaterials, dead organic particles, microbes, algae, protozoa and other organisms. The biofloc acts as a biological filter and is an environment for bacteria that can remove the ammonia. In this study, for evaluate the effect of biofloc system on physical and chemical parameters of water, growth performance and blood indices, ۱۲۰ juvenile Huso huso with an initial mean weight of ۱۶۸.۲±۲.۹ g were introduced in ۶ fiberglass tanks with volume ۲۰۰۰ liters and reared for ۸ weeks. Treatments included control and a biofloc system with ۳ replications in each treatment. During the experiment, physical and chemical parameters of water, growth, and blood indices in fish were measured. Based on the results, a significant decrease was observed in feed conversion ratio (FCR). Specific growth rate (SGR), weight gain and weight gain percentage increased significantly in biofloc system compared to the control (p<۰.۰۵). The lowest number of white blood cells, neutrophils and the highest number of red blood cells, hematocrit and mean corposcular volume (MCV) were observed in the biofloc treatment and there was a significant difference compared to control treatment (p<۰.۰۵). Physicochemical parmeters results such as pH, NO۳, NH۳, NH۴ and TAN values showed a significant difference in biofloc system compared to the control (p<۰.۰۵). In addition, biofloc treatment had more bacteria than the control (p<۰.۰۵). Salinity, nitrogen to phosphorus ratio, alkalinity and orthophosphate levels showed no significant difference between control and biofloc system (p>۰.۰۵). However, the total amount of suspended solids (TDS) in biofloc treatment was significantly higher in bifloc system than the control (P<۰.۰۵). Therefore, biofloc system can be selected as the better treatment than control according to its good performance in farmed beluga.
Keywords:
Authors
M. Aghabarari
North Tehran Branch, Islamic Azad University, Tehran, Iran
S. Abdali
North Tehran Branch, Islamic Azad University, Tehran, Iran
A. Yousefi Jourdehi
International Sturgeon Research Institute of the Caspian Sea, Agricultural Research, Education and Extension Organization,
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :