Electronic Theses and Dissertation

Penelitian ini bertujuan untuk mengetahui pemberian kombinasi pakan (pelet, ikan rucah dan Tubifex sp.) dengan persentase yang berbeda terhadap laju pertumbuhan dan sintasan benih ikan gabus. Penelitian dilaksanakan pada bulan Desember 2021 sampai dengan Januari 2022 di Laboratorium Pembenihan Ikan, Fakultas Kelautan dan Perikanan, Universitas Syiah Kuala. Penelitian ini menggunakan metode Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 3 ulangan. Perlakuan kombinasi pakan yaitu A sebagai kontrol (100% pelet), B (50% pelet, 25% ikan rucah dan 25% Tubifex sp.), C (25% pelet, 25% ikan rucah dan 50% Tubifex sp.), D (25% pelet, 50% ikan rucah dan 25% Tubifex sp.) dan E (25% pelet, 37,5% ikan rucah dan 37,5% Tubifex sp.). Pemeliharaan ikan dilakukan selama 40 hari, serta pemberian pakan 10% dari berat tubuh dengan frekuensi pemberian pakan 3 kali sehari. Parameter yang diamati yaitu pertumbuhan panjang mutlak, pertambahan berat mutlak, laju pertumbuhan spesifik, rasio konversi pakan, efisiensi pakan dan kelangsungan hidup. Hasil penelitian menunjukkan bahwa pemberian kombinasi pakan (pelet, ikan rucah dan Tubifex sp.) pada benih ikan gabus berpengaruh nyata (P0,05) terhadap kelangsungan hidup. Perlakuan E dengan pemberian kombinasi pakan 25% pelet, 37,5% ikan rucah dan 37,5% Tubifex sp. menghasilkan nilai terbaik pada parameter pertumbuhan panjang mutlak, pertumbuhan berat mutlak, laju pertumbuhan spesifik, rasio konversi pakan dan efisiensi pakan. Sedangkan nilai kelangsungan hidup tertinggi terdapat pada perlakuan B, C dan E dengan nilai rataan 97,78%.

Kata kunci: Ikan gabus, Ikan rucah, Tubifex sp., Kombinasi pakan, Kinerja pertumbuhan.

The study aims to determine the combination of feed (pellets, trash fish and Tubifex sp.) with different percentages on the growth rate and survival rate of snakehead fish fry. This research was conducted from December 2021 to January 2022 at the Fish Hatchery Laboratory, Faculty of Marine and Fisheries, Universitas Syiah Kuala. This study used a completely randomized design (CRD) method with 5 treatments and 3 replications. Feed combination treatments were A as control (100% pellet), B (50% pellet, 25% trash fish and 25% Tubifex sp.), C (25% pellet, 25% trash fish and 50% Tubifex sp.), D (25% pellets, 50% trash fish and 25% Tubifex sp.) and E (25% pellets, 37.5% trash fish and 37.5% Tubifex sp.). Fish maintenance was carried out for 40 days, and feeding 10% of body weight with a frequency of feeding 3 times a day. Parameters observed were absolute length growth, absolute weight growth, specific growth rate, feed conversion ratio, feed efficiency and survival. The results showed that the combination of feed (pellets, trash fish and Tubifex sp.) on snakehead fish seeds had a significant effect (P0.05) on survival. Treatment E with combination of feed 25% pellets, 37.5% trash fish and 37.5% Tubifex sp. reach the best value on the parameters of absolute length growth, absolute weight growth, specific growth rate, feed conversion ratio and feed efficiency. Meanwhile, the highest survival value was found in treatments B, C and E with an average value of 97.78%. Keywords: Snakehead, Trash fish, Tubifex sp., Feed combination, Growth performance.