PENGARUH PEMBERIAN JENIS PAKAN BERBEDA TERHADAP PERTUMBUHAN BIOMASSA CACING SUTERA (Tubifexsp.)

ANHAR SANTANA HARAHAP, Ir. Sukardi, M.P. ; Senny Helmiati, S.Pi., M.Si.

2015 | Skripsi | S1 BUDIDAYA PERIKANAN

Cacing sutera (Tubifex sp.) merupakan salah satu jenis pakan alami yang diperlukan dalam budidaya ikan khususnya pembenihan karena dapat menunjang kelangsungan hidup benih ikan. Media hidup cacing sutera terdiri dari lumpur dan bahan organik. Penelitian ini bertujuan untuk mengetahui pertumbuhan biomassa cacing sutera (Tubifex sp.) dengan pemberian pakan berbeda (pakan ikan komersil, kotoran ayam, ampas tahu) serta mencari jenis pakan terbaik yang menghasilkan biomassa tertingi. Penelitian ini dilaksanakan selama 30 hari di Stasiun Penelitian (Research Station) dan Laboratorium Ekologi Perairan Jurusan Perikanan Fakultas Pertanian Universitas Gadjah Mada. Cacing sutera ditebar sebanyak 59 g per ukuran wadah 98cmx12cmx10 cm dengan debit air 500 ml/menit. Rancangan Acak Lengkap digunakan dalam penelitian ini, terdiri dari 4 perlakuan jenis pakan dan 3 kali ulangan. Perlakuan 1 (pemberian pakan ikan komersil), perlakuan 2 (pemberian pakan kotoran ayam), perlakuan 3 (pemberian ampas tahu), dan perlakuan 4 (tanpa pemberian pakan).Hasil penelitian menunjukkan bahwa jenis pakan yang diberikan berpengaruh terhadap produksi Tubifex. Produksibiomassa terbaik terdapat pada perlakuan 1 sebesar 370,98±20,96 atau 6, 28 kali lipat

The silkworm (Tubifex sp.) is one of natural feed needed for fish cultivation, especially for the breeding it helps the life of the fish seed. The media to support silk worms growth consists of mud and organic mateials. The purpose of this research is to know the growth of silk worms biomass with the different type of feeds (commercial fish feed, chicken manure, and tofu dregs) and also to find the best feed which will produce the highest biomass. This research was done for 30 days in the research station and Laboratory of Water Ecology, Fisheries Department, Faculty of Agriculture, Gadjahmada University. The silk worm is spread around 59 grams on each place size 98cm2x12cm2x10cm2 with water debit 500ml/minute. The Complete Randomized Design in this research consistsof four treatments of feed types and three times of repetition. The first treatment is the feeding of commercial fish feed, the second treatment is the feeding of chicken manure, the third treatment is the feeding tofu dregs, and the fourth treatment is without giving any feed. The result shows that the feed given is affecting on the Tubifex sp. production. The best biomass production is obtained from the first treatment in the amount of 370,98±20,96 or 6,28 times better.

Kata Kunci : ampas tahu, biomassa, kotoran ayam, pakan komersil, tanpa pakan, Tubifex sp