DEPARTEMEN BIOLOGI FMIPA USU
v
PENGARUH SUPLEMENTASI BAKTERI ASAM LAKTAT ISOLAT UM 1 DAN INULIN TERHADAP KULTUR BENIH
IKAN NILA (Oreochromis niloticus)
ABSTRAK
Penelitian ini dilakukan untuk melihat efek pemberian pakan berupa probiotik Bakteri Asam Laktat (BAL) Isolat UM 1 dan prebiotik (Inulin) terhadap sintasan, laju pertumbuhan spesifik, dan efisiensi pakan dari benih ikan nila (Oreochromis niloticus). Perlakuan terdiri atas kontrol, probiotik, prebiotik dan sinbiotik yang ditambahkan ke dalam kultur benih ikan dimana masing-masing akuarium berisi 10 ekor benih ikan nila. Penelitian ini dilakukanpada akuarium (40 x 25 x 28 cm) selama 21 hari. Ikan tersebut diberi pakan perlakuan selama 15 hari sebelum diuji tantang. Ikan diuji tantang dengan bakteri patogen Aeromonas hydrophila, lalu diamati selama 5 hari. Hasil yang diperoleh menunjukkan bahwa pemberian suplemen pada pakan tidak berpengaruh terhadap tingkat kelangsungan hidup, laju pertumbuhan spesifik dan efisiensi pakan ikan nila selama masa pemeliharaan, namun memberikan hasil yang signifikan dalam meningkatkan tingkat kelangsungan hidup ikan setelah infeksi dengan Aeromonas hydrophila, yaitu pada perlakuan A (kontrol +) sebesar 42%, perlakuan C (probiotik) sebesar 89%, perlakuan D (prebiotik) sebesar 85% dan perlakuan E (sinbiotik) sebesar 96%. Penambahan probiotik, prebiotik dan sinbiotik pada pakan dapat meningkatkan tingkat kelangsungan hidup ikan hingga 54% akibat infeksi Aeromonas hydrophila.
Kata kunci: Aeromonas hydrophila, ikan nila, prebiotik, probiotik, sinbiotik.
DEPARTEMEN BIOLOGI FMIPA USU
vi
SUPPLEMENTATION EFFECT OF LACTIC ACID BACTERIA UM 1 ISOLATE AND INULIN FOR SEED CULTURE
OF TILAPIA FISH (Oreochromis niloticus)
ABSTRACT
This study was conducted to see the effect of feeding in the form of Lactic Acid Bacteria (LAB) probiotic UM 1 Isolate and prebiotic (inulin) on survival, specific growth rate and feeding efficiency of tilapia fish (Oreochromis niloticus). The treatment consisted of control, probiotic, prebiotic and sinbiotic addition have been added to aquarium that contained 10 tilapia fish. This research was conducted at the aquarium (40 x 25 x 28 cm) for 21 days. The fish were treated by different probiotic types of for 15 days before being tested challenged. After that, the fish were challenged with pathogenic bacteria Aeromonas hydrophila.
Observed for 5 days. The results obtained indicated that supplementation to the diet had no effect on the survival rate, specific growth rate and feeding efficiency of tilapia during the culture period, yet to yield significant results in improving the survival rate of fish after infected by Aeromonas hydrophila, namely the treatment of A ( control +) by 42%, treatment C (probiotic) by 89%, treatment D (prebiotic) by 85% and treatment E (sinbiotic) by 96%. The addition of probiotic, prebiotic and sinbiotic on feed can increase the survival rate of fish up to 54% due to infection of Aeromonas hydrophila.
Keywords: Aeromonas hydrophila, prebiotic, probiotic, sinbiotic, tilapia.
