| Main ref. | 117 | ||
| Country | Philippines |
||
| Name of Farm | Brackishwater Aqua. Center, U.P. Visayas |
Year |
1985 |
| Latitude |
|
Altitude (m) |
|
| Longitude | |||
| Type of culture | monoculture |
Sex (m) |
mixed sex |
| Culture system | experimental ponds |
||
Experiments in ponds |
|||
| Production units | 3 |
Area (ha) |
0.05 |
| Depth (m) | Volume3 |
||
| Main water source | river/creek |
Supplemental water source |
rainfall |
Temp (0C) |
Salinity |
pH |
Oxygen (mg/I) |
Oxygen (%) |
Alkalinity (mg/I CaCO3) |
|
Max |
||||||
Min |
||||||
Mod |
25.4 |
33.2 |
7.9 |
4.9 |
Description of culture system |
Agricultural lime and chicken manure were initially applied at the rate of 2 ton/ha. The inorganic fertilizer, 16-20-0 was applied once a week thereafter at the rate of 12.5 kg/ha/mo. Water was maintained at about 60 cm depth. |
Nutrient inputs |
|
Main food |
in-situ production |
Feed quantity |
|
(% BW/D): |
|
Feed quality (% crued protein) |
|
Fertilizer input (N) |
|
(P) |
|
Description of Nutrient input |
Natural food generated by the application of 16-20-0 alone. |
Production |
|
| Unit cycle | |
| Production period | 151 |
| Production cycle | 19 |
Comments |