Search
Now showing items 431-440 of 441
Establishment of cell lines from catfish (Clarias batrachus) and snakeheads (Ophicephalus striatus)
(Asian Fisheries Society, 1999)
Primary cell cultures from catfish (Clarias batrachus) and snakeheads (Ophicephalus striatus) were prepared from whole fry and fingerling organ tissues of the brain, fins, gonad, heart, kidney, liver, skin and spleen. Four ...
Rheological properties of agar from Gracilariopsis heteroclada (Zhang et Xia) Zhang et Xia (Gracilariales, Rhodophyta) treated with powdered commercial lime and aqueous alkaline solution
(Walter de Gruyter, 1992)
Rheological properties were measured for 1.5% agar gels from Gracilariopsis heteroclada pre-treated with powdered commercial lime (CaCO<sub>3</sub>) during sun drying, and a combination of two alkaline solutions during ...
Gathering of economically important seaweeds in Western Visayas, Philippines
(San Carlos Publications, 1992)
A survey was conducted in 12 coastal municipalities of Western Visayas, Philippines from March to July 1990 to determine the seaweed gathering practices of fishermen. There were 83 gatherers involved in this small-scale ...
Effect of rotenone and saponin on the shell quality of juvenile tiger shrimp, Penaeus monodon
(Society of Israeli Aquaculture and Marine Biotechnology, 1993)
Tiger shrimp (Penaeus monodon) juveniles were exposed to varying concentrations of rotenone and saponin to determine their effects on survival and shell quality. The highest concentrations tested, 50 ppm rotenone and 100 ...
Effect of salinity, dietary lipid source and level on growth of milkfish (Chanos chanos) fry
(Elsevier, 1998)
Six semi-purified microparticulate diets containing coconut oil (CO), cod liver oil (CLO), and their 1:1 combination (CO+CLO) at 9% and 18% levels were fed to milkfish fry or late postlarvae in freshwater (0 ‰), brackishwater ...
Essentiality of phosphorus, magnesium, iron, zinc, and manganese in milkfish diet
(Japanese Society of Fisheries Science, 1999)
Six semi-purified casein based diets were formulated to contain either a complete mineral mixture (control) or mineral premixes from which a specific test mineral was deleted to obtain phosphorus(P)-free, magnesium(Mg)-free, ...
Sargassum studies in Currimao, Ilocos Norte, Northern Philippines I. Seasonal variations in the biomass of Sargassum carpophyllum J. Agardh, Sargassum ilicifolium (Turner) C. Agardh and Sargassum siliquosum J. Agardh (Phaeophyta, Sargassaceae)
(Walter de Gruyter, 1999)
Three species of Sargassum (S. carpophyllum, S. ilicifolium and S. siliquosum were collected each month for a period of one year from the inter- and subtidal zones of Pangil, Currimao, Ilocos Norte, The Philippines. Average ...
Economic analysis of stake and rack-hanging methods of farming oysters (Crassostrea iredalei) in the Philippines
(Elsevier, 1998)
The cost efficiency of stake and rack-hanging methods of farming oysters are compared. Annual costs and returns data for both methods were obtained from a socioeconomic survey conducted in 1991 at the Aquaculture Department of the Southeast Asian Fisheries Development Center (SEAFDEC/AQD). On average, 14 kg m<sup>−2</sup> (shell-on) and 22 kg m<sup>−2</sup> (shell-on) were produced using the stake and rack-hanging methods, respectively. The translog cost function for 58 oyster farms was estimated using iterative seemingly unrelated regression (SUR). Statistical analysis indicates that the higher production from the rack-hanging method is significantly different (α=0.10) from the production using the stake method. The cost-efficient method varied based on production levels. At output levels less that 9044 kg (shell-on), the rack-hanging method had lower average cost per unit, and for higher production levels the stake method had the lower average costs. Similar conclusions were drawn from the marginal cost analysis. Results imply when production is less than 9044 kg, then the most efficient technology is the rack-hanging method and if production is greater than 9044 kg, the most efficient method is the stake method....
Incorporation of fatty acids from dietary neutral lipid in eye, brain and muscle of postlarval turbot fed diets with different types of phosphatidylcholine
(Springer, 1998)
Previous results demonstrated the stimulating effect of soybean phosphatidylcholine (PC) on the utilization of dietary neutral lipid in larval and postlarval fish. The present study further investigated the effect of the ...
Metazoan parasites of Glossogobius giurus (Hamilton-Buchanan) from Naujan Lake, Oriental Mindoro, Philippines
(National Academy of Science and Technology, 1992)
Thirty-five specimens of Glossogobius giurus (TL = 10.8-23.4 cm, wt. = 8.8-66.3 g) collected from Naujan Lake, Oriental Mindoro from May 1991 to February 1992 were examined for metazoan parasites. The parasite species ...