ABSTRAK

Ikan patin (Pangasius hypophtalmus) termasuk ikan yang mudah dibudidayakan sebab bernilai ekonomis tinggi. Salah satu kunci terpenting yang perlu menjadi perhatianuntuk mendorong pertumbuhan serta keberlangsungan hidup yang optimal benih ikan patin yaitu pemberian pakan alami. Penelitian ini bertujuan guna menganalisis pengaruh variasi pemberian pakan alami cacing sutra(Tubifex sp.) pada pertumbuhan serta keberlangsungan hidup benih ikan patin. Model yang dipergunakan pada riset ini yaitu Rancangan Acak Lengkap (RAL) melibatkan tiga perlakuan serta tiga ulangan, yakni pemberian cacing sutra sebesar 3% (A), 5% (B), dan 7% (C). Hasil penelitian memperlihatkan bahwasanya pertumbuhan berat relatif serta panjang relatif paling tinggidiperoleh dalam perlakuan C masing-masing sebanyak 555,9% dan 95,6%. Rasio konversi pakan terbaik diperoleh di perlakuan A besarnya 1,87% dan tingkat keberlangsungan hidup benih ikan patin mencapai 100% seluruh perlakuan. Kualitas air selama penelitian dari awal hingga akhir berada pada kisaran optimal dengan pH 7,2–8,0, DO 6,0–7,2 mg/L, suhu 24,5–30,5°C, serta amoniak 0,01–0,06 mg/L.

Kata kunci : Ikan Patin, Cacing Sutra, Pertumbuhan, Kelangsungan Hidup.

ABSTRACT

Catfish (Pangasius hypophtalmus) as a fish that is easy to farm owing to its high market value. One of the most important keys that needs to be considered to encourage optimal growth and survivability of catfish fry is the provision of natural feed. This research seeks to assess the effect of variations in the provision of natural feed silkworms (Tubifex sp.) on the growth and survivability of catfish fry. A Completely Randomized Design (CRD) was applied in this research involving three treatments and three replications, namely the provision of silkworms at 3% (A), 5% (B), and 7% (C). The study found that the highest relative weight growth and relative length growth were obtained in treatment C at 555.9% and 95.6%, respectively. The most efficient feed conversion ratio was obtained in treatment A at 1.87, and the survival rate of catfish fry reached 100% in each treatments. Water quality throughout the study from beginning to end was in the optimal range with pH 7.2–8.0, DO 6.0–7.2 mg/L, temperature 24.5–30.5°C, and ammonia 0.01–0.06 mg/L.

Keywords :Patin catfish, Silk Worms, Growth, Survival Rate.