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Now showing items 81-90 of 193
Dietary manipulation to control the chronic soft-shell syndrome in tiger prawn, Penaeus monodon Fabricius.
(Asian Fisheries Society, 1990)
Penaeus monodon collected from brackishwater ponds in Iloilo, Philippines, were induced to become soft-shelled in the laboratory for 3-4 weeks. Eight isocaloric and isonitrogenous diets containing 0:0; 0:1; 1:0; 1:0.2; ...
Growth and external reproductive parameters in pond-reared Penaeus monodon
(Marine Science Institute, University of the Philippines, 1994)
Pond-reared Penaeus monodon males and females were sampled regularly over a 4 month period of length and weight measurments to the body and external reproductive organs; joining of the petasmata and the presence of sperm ...
Induction of sex inversion in juvenile grouper, Epinephelus malabaricus, (Bloch and Schneider) by bi-weekly injections of 17 alpha-methyltestosterone
(Society for the Study of Endocrinology, Metabolism and Reproduction, University of Hong Kong, 1989)
Groupers (Family Serranidae) are protogynous hermaphrodites. Natural sex inversion of different species occurs at 2-11 years of age . The scarcity of wild mature males and the length of time to change sex underline the ...
Food consumption of seaperch, Lates calcarifer, in captivity.
(Pudoc, 1989)
In the Philppines, feeds and constitutes some 70% of the total capital cost in aquacultural, which illustrates the central ipmortance of such inputs and at the same time justifies a major research effort to study the field ...
Institutional capacity development for sustainable aquaculture and fisheries: Strategic partnership with local institutions
(Terrapub, 2008)
Many people living in the rural areas in the Philippines, as in other developing countries in Southeast Asia, depend on aquatic resources for their food and livelihood. For the past two decades, the Aquaculture Department ...
Culture and screening of food organisms as potential larval food for finfish and shellfish
(South China Sea Fisheries Development and Coordinating Programme, 1982)
The culture of food organisms for fin and shellfish larvae is discussed in detail. Some of the artificial and enriched media that have been developed and tested for microalgae culture are enumerated and some isolation ...
Recent developments in design and management of small-scale hatchery for Penaeus monodon in the Philippines
(South China Sea Fisheries Development and Coordinating Programme, 1982)
It is a common belief that the zoea of Penaeus monodon are completely filter feeders. Thus, diatoms like chaetoceros and phytoflagellates are maintained at high feeding densities as much as 80 000 cells/ml in hatchery tanks ...
Status of breeding and larval rearing of groupers
(Network of Aquaculture Centres in Asia-Pacific, 2002)
Attempts to breed groupers in captivity started about four decades ago. Ukawa et al. (1966) described the successful fertilization and embryonic development of the red grouper Epinephelus akaara. Fueled by the high market ...
Osmoregulation in Penaeus monodon: Effects of molting and external salinity
(Asian Fisheries Society, 1986)
The effect of molting on osmotic, chloride, calcium and total protein concentrations in the hemolymph of the shrimp Penaeus monodon was investigated. Regardless of medium salinity, tissue water as well as osmotic and ...
Amino acid and fatty acid profiles in aquaculture nutrition studies
(Asian Fisheries Society, 1989)
The amino acid profile is an important parameter in the evaluation of protein quality and in requirement studies. Amino acid profiles are usually determined in 2 steps: hydrolysis of the protein to constituent amino acids ...