PRODUCTION PERFORMANCE AND BLOOD PROFILE OF CLIMBING PERCH Anabas testudineus Bloch CULTURED IN PEAT POND WITH DIFFERENT STOCKING DENSITIES

Abstract

Climbing perch is one of economically-valued local fish in Indonesia, particularly in Borneo, Sumatra, and Java Islands. The fish has the potential to be developed as freshwater aquaculture species. The purpose of this experiment was to evaluate the production performance and blood profile of climbing perch cultured in peat pond with different stocking densities. The research was conducted in Kereng Bangkiray Village, Sebangau District, Palangkaraya City, Central of Borneo. Nine fish ponds sized 5.0 m x 5.0 m x 1.5 m were used. Nets with a mesh size of 1 cm measuring 2.0 m x 1.5 m x 1.0 m was installed in each fish pond for the experiment. The treatment consisted of different stocking densities, namely 15 fish/m2, 30 fish/m2, and 45 fish/m2. Fish with the body weight of 20 ± 1.25 g were used. Fish were cultured for four months. An artificial diet containing 30% protein was given with a feeding rate of 5%. The experiment was designed in a complete randomized design. The result showed that the production performances (i.e. survival, specific growth rate, absolute weight, and biomass) were significantly higher at the densities of 15 and 30 fish/m2 than that of 45 fish/m2 (P<0.05). Blood profile such as glucose, erythrocyte, leucocyte, and hemoglobin were higher at the density of 45 fish/m2 except for hematocrit which was higher at the densities of 30 and 15 fish/m2. Water quality parameters such as dissolved oxygen, nitrite, nitrate, and ammonia at the densities of 15 and 30 fish/m2 showed better values than that of 45 fish/m2 stocking density. To optimize the productivity and maintain the optimum water quality condition, the optimal stocking density for climbing perch culture is suggested at 30 fish/m2.

Feeding incidence and biological performance of Nilem carp, Osteochilus haseltii larvae to juvenile stages cultured under different aeration rate

“…Water current is correlation to dissolved oxygen where the strong water current has result in high dissolved oxygen [24]. On the other hand, the densities has resulted in low growth [25]. The same result at the present experiment shows that the lowest growth at 1,000 ml/minute although the dissolved oxygen is high.…”

The effects of differences in water exchange on the productivity of glass eel stage in Anguilla bicolor bicolor culture

“…Blood glucose plays an essential role as an indicator of fish physiology, especially the stress response on grass carp fish [17]. Similar research has also been reported that the glucose level in fish is related to the stress response caused by some factors such as high stocking density [18], environmental disturbance [19], salinity [20], and pollutant of heavy metal [20]. Since blood glucose is often used for the stress response thus, the present experiment is also the blood glucose will be used as a parameter to describe the physiological response related to water exchange.…”

Effect of salinity on growth, survival, haemato‐biochemical and antioxidative status ofAnabas testudineus(Bloch, 1792) juveniles reared in inland saline water

“…Physio‐chemical parameters play a dynamic role in regulating physiological homeostasis in animals (Singha et al, 2020). Among the different physico‐chemical parameters of water, temperature plays a vital role (optimum 26–30°C) in maintaining the metabolic activity in poikilothermic fish (Boyd, 1990; Widiyati et al, 2019). During trial, temperature was maintained within the optimal range of 28.5–30.0°C.…”

“…During trial, temperature was maintained within the optimal range of 28.5–30.0°C. The optimum range of pH for koi culture ranges from 6 to 9 (Widiyati et al, 2019) and pH value during the trial ranged from 7.39 to 7.84. Total alkalinity (mg CaCO 3 /l) value in the present experiment ranged from 126.0 to 213.50, with an increasing trend with rising salinity.…”

“…The fish has shorter life cycle, faster growth rate, omnivorous feeding habit, highly nutritious food value and tolerance towards adverse environmental conditions making this species a good option for aquaculture diversification in inland water areas (Bhaskar et al, 2015). Anabas is reported to exhibit faster growth rate in mild saline water compared with freshwater (Widiyati et al, 2019). Several studies have also been reported that growth and survival of A. testudineus are not hampered in saline water up to 15 ppt salinity (Chotipuntu & Avakul, 2010;Dubey et al, 2015).…”