Effect of different stocking densities on hematological parameters and growth performance of great sturgeon (Huso huso)

Abstract

A 5-week study was conducted to determine the effects of different stocking density on hematological parameters and growth performance of great sturgeon. Fish were cultured in duplicates of fiberglass tanks under stocking densities of 50, 75, 100 and 125 fish/m3 as T1, T2, T3 and T4 respectively. Based on the results, significant increase (p<0.05) in total body weight and total length were related to low density group. The lowest mean body weight (103.26 g) and length (29.65 cm) were recorded in T4. At the end of the experiment, Results of hematological analysis showed changes in the stocking density had non-significant impact on values of WBC and MCH (p>0.05). The highest mean corpuscular hemoglobin concentration (MCHC) was also recorded in T4. The highest level of hemoglobin, hematocrit (7.25 g dL-1 and 22.2%) were significantly associated with T1 (p<0.05).

Effect of stocking density on growth performance, plankton abundance, body composition and haematological parameters of Etroplus suratensis (Bloch, 1790)

“…niloticus (Azim et al, 2003), and in golden mullet Liza aurata (Richard et al, 2010). The decreased growth of fish with increasing stocking density may be due to intraspecific competition for food and space (Biswas et al, 2013; Bolasina et al, 2006; Chakraborty & Mirza, 2007; Coulibaly et al, 2007; Naderi et al, 2017; Uddin et al, 2007; Zhang et al, 2010). In another growth study, increased combined net yield and decreased individual harvesting weight of prawn ( Macrobrachium rosenbergii ) and tilapia ( O .…”