| publication name | Influences of calcium/phosphorus ratio on supplemental microbial phytase efficiency for Nile tilapia (Oreochromis niloticus) |
|---|---|
| Authors | Hassan, M. S., Soltan, M. A., Agouz, H. M. and Badr, A. M. |
| year | 2013 |
| keywords | |
| journal | |
| volume | Not Available |
| issue | Not Available |
| pages | Not Available |
| publisher | Not Available |
| Local/International | Local |
| Paper Link | http://www.sciencedirect.com/science/article/pii/S1687428513000848 |
| Full paper | download |
| Supplementary materials | Not Available |
Abstract
A 3 × 3 factorial feeding trial was conducted to evaluate the effects microbial phytase (MP) supplementation fed with Ca/P ratio on growth, digestibility, vertebral mineralization and some blood parameters in Nile tilapia Oreochromis niloticus. Three levels of phytase (0, 500 and 1000 Ukg-1 diet) were combined with three Ca/P ratios (0.3:1, 0.6:1 and 0.9:1), respectively. The Ca/P ratios were achieved by supplementing calcium propionate at (0, 5 and 10 g kg-1 diet). After a 84-day feeding trial, tilapia fish fed 500 and 1000 Ukg-1 diet at Ca/P ratio (0.6:1) had significantly higher growth rate, feed intake (FI) crud protein, vertebrae ash and phosphorus than other groups. Interaction between Ca/P and MP are significantly (p