Tugas Akhir a.n dini anisa amaliasari (J0408221084)

Abstract

Ikan tiger catfish Pseudoplatysoma fasciatum merupakan ikan hias karnivora bernilai ekonomi tinggi dengan permintaan ekspor terus meningkat. Budidaya benihnya terkendala pertumbuhan tidak seragam dan kelangsungan hidup rendah. Penelitian bertujuan mengevaluasi efektivitas pakan alami optimal pada pendederan benih ikan tiger catfish. Penelitian dilaksanakan di Saenamina Fish Farm, Bogor, menggunakan rancangan acak lengkap (RAL) empat perlakuan: cacing sutera Tubifex sp. (CS), cacing darah larva Chironomus sp. (CB), cacing tanah Lumbricus rubellus (CT), dan ikan cere Gambusia affinis (IC), tiga ulangan selama 40 hari dengan 25 ekor benih per perlakuan berukuran 2,5 cm, pakan diberikan secara at-satiation. Parameter yang diamati meliputi bobot mutlak, panjang mutlak, laju pertumbuhan spesifik (LPS), sintasan (SR), efisiensi pakan (EP), feed conversion ratio (FCR), kualitas air, analisis usaha dan analisis keuntungan. Perlakuan CT memberikan performa terbaik dan berbeda nyata (P<0,05) dibandingkan CS dan CB, dengan bobot mutlak 6,08±1,03 g, panjang mutlak 5,59±0,94 cm, LPS 23,91±4,18%, SR 97,33±2,31%, EP (47,50±6,54%) dan FCR (2,14±0,3). Hasil terbaik cacing tanah terbukti efektif meningkatkan pertumbuhan dan kelangsungan hidup benih ikan tiger catfish pada fase pendederan.

The tiger catfish Pseudoplatysoma fasciatum is a carnivorous ornamental fish with high economic value with increasing export demand. Its seed cultivation is hampered by uneven growth and low survival. The study aimed to evaluate the effectiveness of optimal live feeds in tiger catfish seed nursery. The study was conducted at Saenamina Fish Farm, Bogor, using a completely randomized design (CRD) with four treatments: Tubifex sp. silkworms (CS), Chironomus sp. larval bloodworms (CB), Lumbricus rubellus earthworms (CT), and Gambusia affinis cere fish (IC), with three replications for 40 days with 25 fry per treatment sized 2,5 cm, and feed was provided at-satiation. The parameters observed included absolute weight, absolute length, specific growth rate (SGR), survival rate (SR), feed eficiency (FE), feed conversion ratio (FCR), water quality, business analysis and provit analysis. The CT treatment provided the best performance and was significantly different (P<0.05) compared to CS and CB, with an absolute weight of 6.08±1.03 g, an absolute length of 5.59±0.94 cm, an SGR of 23.91±4.18%, an SR of 97.33±2.31%, an FE (47,50±6,54%) and FCR (2,14±0,3). The best results of earthworms were proven to be effective in increasing the growth and survival of tiger catfish fry in the nursery phase.