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Dietary protein requirements for growth performance and effects oncarcass composition of young Siamese spiny eel, Macrognathussiamensis (G?nther, 1861) |
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| รหัสดีโอไอ | |
| Creator | 1. Theerachai Pongjanyakul 2. Jongkon Boonngarm 3. Praneet Ngamsnae 4. Kanjana Payooha 5. Jarungjit Grudpan |
| Title | Dietary protein requirements for growth performance and effects oncarcass composition of young Siamese spiny eel, Macrognathussiamensis (G?nther, 1861) |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2564 |
| Journal Title | Songklanakarin Journal of Science and Technology (SJST) |
| Journal Vol. | 43 |
| Journal No. | 2 |
| Page no. | 453-459 |
| Keyword | Siamese spiny eel (Macrognathus siamensis), dietary protein requirement, growth performances |
| URL Website | https://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | The study on protein requirement of young Siamese spiny eel, Macrognathus siamensis (G?nther, 1861) wasconducted using six different protein level (35, 40, 45, 50, 55 and 60 % protein) with average gross energy of 450 kcal?100/g.The results demonstrated the maximum specific growth rate (SGR), % weight gain and daily weight gain were achieved at 55%protein while the fishes fed with 35% protein was the lowest. It was estimated by broken line regression that dietary protein levelproducing maximum growth was 46.50% protein. There was no significant difference (P>0.05) on survival rate amongsttreatments. Protein efficiency ratio (PER) and apparent net protein retention (ANPR) were not significantly (P>0.05) affected bydiet protein levels. No significant (P>0.05) effect of dietary protein levels was found on carcass moisture, crude protein, crudelipid and ash. However, carcass moisture, protein and ash were apparently increased in all fish groups after feeding trial,comparing to fish before the experiment. |
