Abstrak

Penelitian ini bertujuan untuk mengetahui pengaruh performa pertumbuhan terhadap benih ikan gabus haruan (Channa striata) yang diberi pakan alami cacing sutra (Tubifex sp.). Penelitian ini dilakukan dengan menggunakan metode Rancangan Acak Lengkap (RAL) dengan 4 perlakuan 3 ulangan. Pakan yang digunakan yaitu cacing sutra dan pakan komersil. Parameter penelitian meliputi perrtumbuhan berat relatif, pertumbuhan Panjang relatif, kelangsungan hidup, rasio konversi pakan, kualitas air dan tingkah laku respon pakan. Hasil penelitian ini diperoleh data pertumbuhan berat relatif perlakuan A (kontrol) 90,23%, B 43,26%, C 116,19%, D 230,44% berpengaruh nyata, pertumbuhan panjang relatif A 15,26, B 32,83%, C 45,92 %, D 49,50% berbeda nyata, kelangsungan hidup perlakuan A 27,78%, B 19,44%, C 22,44%, D 36,11% tidak berpengaruh nyata. Rasio konversi pakan A 2,91%, B 2,41%, C 4,94%, D 5,66%. Parameter kualitas air selama penelitian cukup optimal yaitu oksigen terlarut 4,45-5,57 mg/l. pH 6,78- 5,95. Suhu air 26,4-27,4^oC dan kandungan amoniak 0,05-0,44 mg/l.

Kata kunci :  gabus haruan, cacing sutra, pertumbuhan,  berat, panjang.

Abstract

This study aims to determine the effect of giving silk worms on the growth performance of snakehead fish fry (Channa striata) which are fed natural silk worms (Tubifex sp.).  This research was conducted using a completely randomized design (CRD) with 4 treatments and 3 replications.  The feed used is silk worms and commercial feed.  The research parameters included relative weight growth, relative length growth, survival, feed conversion ratio, water quality and feed response behavior.  The results of this study obtained data on the relative weight growth of treatment A (control): 90.23%, B 43.26%, C 116.19%, D 230.44% significant effect, relative length growth A 15.26, B 32.83%, C 45.92%, D 49.50% significantly different, survival of treatment A 27.78%, B 19.44%, C 22.44%, D 36.11% had no significant effect. While the feed conversion ratio A 2.91%, B 2.41%, C 4.94%, D 5.66%.  Parameters of water quality during the research was optimal, namely dissolved oxygen 4.45-5.57 mg/l.  pH 6.78- 5.95.  The water temperature is 26.4-27.4^oC, and the ammonia content is 0.05-0.44 mg/l.

Keywords: snake head fish, silk worms, growth, weight, length.