Aplikasi Pemberian Tubifex sp. dan Coelastrella oocystiformis terhadap Performa Pertumbuhan Larva Ikan Lele Sangkuriang Clarias gariepinus

Abstract

Ikan lele sangkuriang Clarias gariepinus menjadi komoditas unggulan masyarakat Indonesia karena dapat dipelihara dengan padat tebar yang tinggi. Ikan lele memerlukan ketersediaan pakan untuk mencegah kematian akibat kanibalisme. Penelitiaan ini bertujuan untuk mendapatkan dosis pemberian fitoplankton C. oocystiformis untuk meningkatkan performa pertumbuhan larva ikan lele. Penelitian menggunakan rancangan acak lengkap (RAL) dibagi ke dalam tiga perlakuan berbeda, yakni pemberian Tubifex sp. 100% (kontrol), pemberian C. oocystiformis 100% (P1), dan kombinasi Tubifex sp. 50% ditambah C. oocystiformis 50% (P2). Hasil penelitian menunjukan bahwa perlakuan P2 menghasilkan Survival Rate (SR) 90,30%, Pertumbuhan Panjang Mutlak (PPM) 1,36 cm, dan Spesific Growth Rate (SGR) 26,6% yang tidak berbeda nyata terhadap perlakuan kontrol. Pemberian fitoplankton pada penelitian ini dapat menurunkan total bakteri, ammonia, dan nitrit pada media pemeliharaan.

Sangkuriang catfish Clarias gariepinus is a leading commodity for Indonesian people because it can be maintained at high stocking densities. Catfish require the availability of food to prevent death due to cannibalism. This research aims to obtain a dose of C. oocystiformis phytoplankton to improve the growth performance of catfish larvae. The research used a Completely Randomised Design (CRD) divided into three different treatments, namely 100% Tubifex sp. feeding (control), 100% C. oocystiformis feeding (P1), and a combination of Tubifex sp. 50% plus C. oocystiformis 50% (P2). The research results showed that the P2 treatment produced a Survival Rate (SR) of 90.30%, Total Length Growth (PPM) of 1.36 cm, and Spesific Growth Rate (SGR) of 26.6% which were not significantly different from the control treatment. The provision of phytoplankton in this study can reduce total bacteria, ammonia and nitrite in the rearing media.