<![CDATA[ABSTRAKBenih lele dumbo sangat rentan terhadap infeksi oleh berbagai penyakit, oleh karena itu daya tahan tubuhnya perlu dijaga bahkan ditingkatkan. Salah satu bahan untuk fungsi ini adalah vitamin B kompleks. Walaupun vitamin B kompleks dalam tubuh benih ikan lele dumbo dibutuhkan dalam jumlah sedikit, akan sangat fatal jika mengalami kekurangan atau kelebihan vitamin B kompleks, salah satu akibatnya nafsu makan menurun sehingga dapat menghambat pertumbuhan. Penelitian ini bertujuan untuk mengetahui penambahan dosis vitamin B kompleks yang terbaik pada pakan komersial terhadap pertumbuhan berat mutlak benih ikan lele dumbo (Clarias gareipinus) ukuran 2-3 cm. Penelitian ini menggunakan metode eksperimen dengan rancangan acak lengkap dengan 5 perlakuan dengan 5 ulangan. Perlakuan A ; penambahan vitamin B kompleks dengan dosis 40 mg/liter air tawar, perlakuan B; penambahan vitamin B kompleks dengan dosis 90 mg mg/liter air tawar, perlakuan C; penambahan vitamin B kompleks dengan dosis 140 mg/liter air tawar, perlakuan D; penambahan vitamin B kompleks dengan dosis 190 mg/liter air tawar dan perlakuan E; penambahan vitamin B kompleks dengan dosis 240 mg/liter air tawar. Hewan uji yang digunakan dalam penelitian ini adalah benih lele dumbo dengan bobot rata-rata 0,14 g/ekor. Padat tebar 1 ekor/liter dan media percobaan menggunakan air tawar dengan volume 3 liter/bak. Hasil penelitian menunjukkan bahwa perlakuan C memberikan hasil tertinggi terhadap pertumbuhan berat mutlak benih ikan lele dumbo (Clarias gareipinus) ukuran 2-3 cm dengan ukuran 10,52 gr. Data kualitas air diperoleh suhu air berkisar antara 28,1 0C – 28,3 0C, keasaman berkisar antara 8,2 – 8,3 dan oksigen terlarut berkisar antara 6,2 – 6,6 ppm.Kata kunci; vitamin B kompleks, pakan komersil, pertumbuhan berat mutlak, lele dumboABSTRACTDumbo catfish seeds are very susceptible to infection by a variety of diseases, hence their immune system needs to be maintained and even enhanced. One of the ingredients for this function is vitamin B complex. Although vitamin B complex in the body of dumbo catfish seeds is needed in small amounts, it will be fatal if it experiences a lack or excess of vitamin B complex, one of the consequences is decreased appetite so that it can hamper growth. This study aims to determine the addition of the best dose of vitamin B complex in commercial feed on the absolute weight growth of dumbo catfish seeds (Clarias gareipinus) size 2-3 cm. This study used an experimental method with a complete randomized design with 5 treatments with 5 repetitions. The treatment A; the addition of vitamin B complex at a dose of 40 mg/liter of fresh water, treatment B; the addition of vitamin B complex at a dose of 90 mg/liter of fresh water, treatment C; the addition of vitamin B complex at a dose of 140 mg/liter of fresh water, treatment D; the addition of vitamin B complex at a dose of 190 mg/liter of fresh water and treatment E; the addition of vitamin B complex at a dose of 240 mg/liter of fresh water. The test animals used in this study were dumbo catfish seeds with an average weight of 0.14 g/tail. Stocking density was 1 tail/liter and the experimental media used fresh water with a volume of 3 liters/basin. The test animal used in this study were dumbo catfish seeds with an average weight of 0,14 g/head. Stocking density was 1 tail/liter and the experimental media used fresh water with a volume of 3 liters/basin. The study results showed that treatment C gave the highest results on absolute weight growth of dumbo catfish (Clarias gareipinus) fry size 2-3 cm with a size of 10,52 g. Water quality data obtained water temperature ranged from 28,10C – 28,30C, acidity ranged from 8,2 – 8,3 and dissolved oxygen ranged from 6,2–6,6 ppm.Keywords: vitamin B complex, commercial feeding, absolute weight growth, dumbo catfish]]>
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