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Now showing items 11-20 of 31
Shorter immersion times increase yields of the blacklip pearl oyster, Pinctada margaritifera (Linne.), from spat collectors in Solomon Islands
Type: Journal Article
In Solomon Islands, "spat" (juveniles) of the blacklip pearl oyster, Pinctada margaritifera, suffer high levels of mortality while on collectors, presumably due to predation by ranellid gastropods, xanthid and portunid ...
Effect of substituting animal protein sources with soybean meal in diets of Oreochromis karongae (Trewavas 1941)
Type: Journal Article
Three diets were formulated using locally available feed ingredients in Malawi to test the effect of replacing animal protein (fish meal, meat and bone meal) with soybean meal (10:0, 5:5, 0:10% of diet) as the protein ...
Integrating fish and azolla into rice-duck farming in Asia
Type: Journal Article
Several countries in Asia practice integrated rice-duck farming. On-farm resources such as duck manure and feed waste are not adequately used and recycled in the system. This indicates the potential for research to increase ...
Technical efficiency of tilapia growout pond operations in the Philippines
Type: Journal Article
The determination of efficient production levels for tilapia growout operations, given the existing technology, is necessary to examine alternative options to increase productivity. If farmers are not making efficient use ...
Evaluation of the carcass and commercial characteristics of carps
Type: Journal Article
The role of carcass evaluation techniques in aquaculture research programs, especially in genetics, breeding, production management, feeding and nutrition, cannot be overemphasized. Knowledge of production efficiencies and ...
Some reproductive aspects of Chrysichthys nigrodigitatus (Lacépède) from Cross River, Nigeria
Type: Journal Article
Between May and October 1990, fecundity, egg size and condition factor of Chrysichthys nigrodigitatus (Lacépède) in the Cross River, Nigeria, were studied. The fecundity (F) of this population varied from 3 046 eggs (total ...
Reviving the Macrobrachium rosenbergii (de Man) fishery in Vembanad Lake, India
Type: Journal Article
In Vembanad Lake and its confluent rivers (Kerala, India), the catches of Macrobrachium rosenbergii (de Man) were reported to have dwindled to a mere 39 t in the 1980s from average landings of 300 t during the 1960s. This ...
Aquaculture vis-a-vis agriculture
Type: Journal Article
The effect of aquaculture, especially shrimp farming, on agriculture has caused heated debate among aquaculturists, agriculturists, and non-governmental organizations. As data on the negative impact of shrimp farming on ...
Socioeconomics and production efficiency of tilapia hatchery operations in the Philippines
Type: Journal Article
With the recent availability of genetically improved Nile tilapia strain in the Philippines, it is important to look at the existing profile of tilapia hatchery operations in the country to help examine the potential ...
Bioconversion efficiency and growth in the white shrimp Penaeus indicus (Milne Edwards), fed with decomposed mangrove leaves
Type: Journal Article
Food conversion efficiency and growth in the white shrimp Penaeus indicus fed with decomposed mangrove leaves of Avicennia marina and A. officinalis were monitored under laboratory conditions. It was observed that test ...