| NIM | B1J008016 |
|---|
| Namamhs | DIDI HUMAEDI YUSUF |
|---|
| Judul Artikel | PERKEMBANGAN POST-LARVA IKAN NILEM (Osteochilus hasselti C.V.) DENGAN POLA PEMBERIAN PAKAN BERBEDA |
|---|
| Abstrak (Bhs. Indonesia) | Kegagalan adaptasi dalam pemanfaatan pakan dapat mengakibatkan kematian larva. Fase post-larva merupakan masa transisi perkembangan yang kritis karena pada fase tersebut ada peralihan penyerapan nutrisi internal ke pemanfaatan pakan eksternal. Penelitian ini bertujuan untuk mengetahui perkembangan dan sintasan post-larva ikan Nilem (Osteochilus hasselti C.V.) yang diberi pakan dengan pola pemberian pakan berbeda. Penelitian dilaksanakan secara eksperimental dengan rancangan acak lengkap (RAL). Perlakuan yang diuji terdiri atas pakan berupa (P1) 100% Sprirulina sp., (P2) 75% Sprirulina sp. + 25% pellet serbuk, (P3) 50% Sprirulina sp. + 50% pellet serbuk (P4) 25% Sprirulina sp +75% pellet serbuk, dan (P5) 100% pellet serbuk. Larva umur 1 hari dipelihara selama 8 minggu dengan padat penebaran 17 ekor/L dan pemberian pakan 5% dari total berat biomassa. Perkembangan post-larva dievaluasi dengan mengamati perkembangan morfologi larva, pertambahan panjang tubuh (setiap minggu), berat biomassa (setiap 2 minggu), dan menghitung sintasan pada minggu ke 8. Data morfologi dianalisis secara deskriptif. Data pertambahan panjang tubuh, berat biomassa dan sintasan dianalisis menggunakan anova dua arah dilanjutkan dengan uji BNT. Hasil penelitian menunjukkan bahwa pakan secara signifikan berpengaruh terhadap perkembangan post-larva (p<0,05). Perkembangan post-larva terbaik didapat pada perlakuan pemberian pakan 100% pellet serbuk. Perkembangan post-larva teramati pada minggu pertama mulut membuka, kulit sudah terpigmentasi, gelembung renang (vesica metatoria) berbentuk bilobus, sirip ekor (caudal fin) dan sirip punggung (dorsal fin) sudah terdiferensiasi. Sirip sudah lengkap pada minggu ketiga dan morfologi post-larva sama seperti ikan dewasa. Pertambahan panjang tubuh dan berat biomassa post-larva tertinggi didapatkan pada kelompok yang diberi pakan berupa 100% pellet dan sintasan terbaik didapatkan pada perlakuan pakan kombinasi (P3) 50% Spirulina sp.+ 50% pellet serbuk . |
|---|
| Abtrak (Bhs. Inggris) | Failure of adaptation in feed utilization can result in larval mortality. Post-larval stage is a critical period of fish development in which transition from internal feeding to external feeding occurs. This study aimed to determine the growth and survival of hard-lipped barb (Osteochilus hasselti C.V.) post-larvae fed with different feeding patterns. The experiment was conducted on an experimental basis with a completely randomized design (CRD). The treatments consisted of (P1) 100% Spirulina sp., (P2) 75% Spirulina sp. + 25% pellet powder, (P3) 50% Spirulina sp. + 50% powder pellet, (P4) 25% +75% sp Spirulina pellet powder, and (P5) 100% powder pellets. Day 1 post-hatching larvae were reared in aquaria with density of 17 fish / L for 8 weeks. The larvae were fed as much as 5% of the total weight of biomass. Post-larval development was evaluated by observing the development of the larvae morphology, the body length (every week), the biomass weight (every 2 weeks), and calculating their survival rate at week 8. Morphological data were analyzed descriptively. Data on body length, biomass weight and survival were analyzed using two-way ANOVA followed by LSD test. The results showed that the feeding pattern significantly affected the development of post-larvae (p<0.05). The most advance post-larval development was obtained from the post-larvae fed with 100% pellet powder. In this group, morphological characters of post-larvae in the first week were the mouth start opening, the skin was pigmented, and gall bladder in bi-lobes shaped, caudal fin and dorsal fins were differentiated. Completion of fins development was achieved by the third week when the post-larvae have adult morphological character. The highest body length and biomass weight of the post-larvae was obtained in the group fed with100% of pellets and the highest survival rate was found in the group fed with combination of 50% Spirulina sp. + 50% pellet powder (P3). |
|---|
| Kata kunci | Osteochilus hasselti C.V., perkembangan, sintasan, Spirulina platensis, post-larva |
|---|
| Pembimbing 1 | Dra. Gratiana E. Wijayanti, M.Rep.Sc., Ph.D |
|---|
| Pembimbing 2 | Drs. Sugiharto, M.Si |
|---|
| Pembimbing 3 | |
|---|
| Tahun | 2013 |
|---|
| Jumlah Halaman | 11 |
|---|
| Tgl. Entri | (belum diset) |
|---|