Effect of stocking density on growth performance of monosex tilapia (Oreochromis niloticus) with Indian spinach (Basella alba) in a recirculating aquaponic system

Abstract

An experiment was conducted to compare effect of stocking density on growth performance of monosex tilapia (Oreochromis niloticus) with Indian spinach (Basella alba) in a recirculating aquaponic system. The experiment was set-up for 8 weeks under 4 treatments with three replications, where stocking density of tilapia were 30, 50, 70 and 90 fish/tank (300 litre) in treatments T1, T2, T3 and T4, respectively. Water from the tank was recirculated through a vegetable growing tray. Each of the tray was 0.15 m 3 in size, which was planted with 12 plants (Indian spinach). The fish of all the treatments was fed two times a day. During the experimental period,the range of water temperature was 27.1 to 31.50 C, pH 7.48 to 8.28, ammonia 0.2 to 2.0 mg/l and dissolve oxygen 5.11 to 6.58 mg/l. At the end of the experiment, average weight gain, final length, specific growth rate (%/day), survival rate was significantly higher in T1 (30 fish/tank) treatment while the net yield of fish and plant biomass was higher in T2 (50 fish/tank) treatment.Therefore, the study suggests that stocking density of 50 fish/tank for tilapia, i.e. 167 fish/m 3 , is suitable for production of both plant and fish in a recirculating aquaponic system.

Effect of stocking density of fish on water quality and growth performance of European Carp and leafy vegetables in a low-tech aquaponic system

“…In other AP systems, the mortality of Koi Carp increased (from 0% to 2%) when the density of fish increased from 2.1 kg m -3 to 2.8 kg m -3 [40]. Similar results were found by Rayhan et al [41], who observed a significant increase in the mortality (from 0% to 7.2%) of juveniles of tilapia with increasing stocking density from 0.52 kg m -3 to 1.58 kg m -3 . However, considering the available information for fish cultured in different systems, a direct relationship between stocking density and mortality was not fully demonstrated [37, 44, 46].…”

“…In accordance with our findings, Hussain et al [40] have reported that the SGR of Koi Carp ( Cyprinus carpio ) (initial weight of 4.24 g) cultured in AP was strongly reduced with increasing density of fish from 1.4 kg m -3 to 2.1 kg m -3 to 2.8 kg m -3 . Other authors observed a significant reduction of SGR with increasing stocking density in juveniles of tilapia farmed in AP [41].…”

Yerleşim Sıklığının Sprague Dawley Ratlarda Büyüme Performansı, Bazı Serum Oksidatif ve Nitrosatif Stres Parametreleri Üzerine Etkisi

“…Although there are different studies investigating the effects of the stocking density on various behavioral and physiological changes in rodents (Arakawa, 2005;Smith et al, 2005;Whitaker et al, 2007), domestic hens (Simsek et al, 2014;Eugen et al, 2019), quail (Ayasan et al, 2000;Toplu and Fidan, 2008;Bahsi et al, 2016), fishes (Jia et al, 2016;Rayhan et al, 2018), pigs (Cornale et al, 2015;Kim et al, 2016;Larsen et al, 2018), broiler (Qaid et al, 2016;Li et al, 2019) and primates (Yamagiwa, 1999;Duncan et al, 2013), no studies have investigated its effect on antioxidant capacity. In the present study, therefore, the effect of the stocking density on the antioxidant capacity in the rats was examined.…”

APLIKASI KOMPOSISI FILTER YANG BERBEDA TERHADAP KUALITAS AIR, PERTUMBUHAN DAN KELULUSHIDUPAN IKAN NILA (Oreochromis niloticus) PADA SISTEM RESIRKULASI

“…Budidaya dengan intensifikasi merupakan pilihan yang memungkinkan dalam meningkatkan produksi budidaya dengan lahan yang terbatas (Al-Hafedh dan Alam, 2007;Kumar et al, 2010;Klanian dan Adame, 2013). Sistem budidaya intensif dicirikan dengan tingginya kepadatan ikan dan adanya pakan tambahan dari luar (Nasution et al, 2014;Rayhan et al, 2018). Limbah budidaya dengan padat tebar tinggi apabila dibiarkan terus menerus secara berkelanjutan dapat menjadi racun bagi ikan (Alfia et al, 2013;Nasution et al, 2014).…”

“…; Rachmawati dan Samidjan (2017); danRayhan et al (2018), yaitu: , laju pertumbuhan relatif (RGR), tingkat konsumsi pakan (TKP), rasio konversi pakan (FCR), kelulushidupan (SR), kemudian dianalisis menggunakan analisis sidik ragam (ANOVA) untuk melihat pengaruh perlakuan. Sebelum dianalisis sidik ragamnya, dilakukan uji normalitas, homogenitas, dan additivitas.…”