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Now showing items 41-50 of 77
Food consumption/biomass ratios of the pelagic fish community of Lake Malawi/Niassa
Type: Journal Article
An empirical model relating food requirements to morphometric indices of metabolic rate was used to calculate consumption/biomass ratios (Q/B) for 16 species of fish that make the pelagic fish community in Lake Malawi/Niassa. ...
Water quality, fish production and economics of Nile Tilapia, Oreochromis niloticus, and African catfish, Clarias gariepinus, monoculture and polyculture
Type: Journal Article
Tilapia is the main cultured fish species in Egypt, contributing 43.5% of farmed fish production and 24% of total fisheries production. The main problem facing tilapia producers is early reproduction before fish reach ...
Production priorities overshadow genetic quality at African fish hatcheries
Type: Journal Article
Based largely on FAO programs that address rural poverty, small-scale hatcheries have been developed in Africa to produce catfish and tilapia fingerlings. Production practices that fail to maintain genetic diversity, ...
Aquaculture, employment, poverty, food security and well-being in Bangladesh: A comparative study
Type: Report
This study addresses five research questions about the nature of aquaculture development in Bangladesh. The questions are designed to test central narratives from the literature on aquaculture, poverty and food security, ...
Mycoflora and mycotoxins in finished fish feed and feed ingredients from smallholder farms in East Africa
Type: Journal Article
In this article, the authors provide a pioneer snapshot of the co-occurrence of aflatoxins, fumonisin and ochratoxin A, as well as other mycotoxins, in fish feed and ingredients from East Africa. A total of 52 samples of ...
The commercial use of chicken processing wastes to raise hybrid catfish (Clarias gariepinus x Clarias macrocephalus) in Thailand
Type: Journal Article
The article highlights the commercial use of chicken processing wastes on nursery and growout operations of hybrid catfish (Clarias gariepinus x Clarias macrocephalus) farm in Thailand.
USAID_Improving Biosecurity: A Science-based Approach to Manage Fish Disease Risks and Increase the Socio-economic Contribution of the Nigerian Catfish and Tilapia Industries (Chadag)_Semi-annual Research Project Report_October 2020 - March 2021
Type: Report
Semi-annual Donor Report for the period of October 2020-March 2021 for the project: "Improving Biosecurity: A Science-based Approach to Manage Fish Disease Risks and Increase the Socio-economic Contribution of the Nigerian ...
FishBase species profile: Clarias gariepinus (Burchell, 1822) North African catfish
Type: Journal Article
In this issue NAGA introduces a new page on profiles of fish species. This page will be a permanent feature of the NAGA and will be based on information derived from FishBase (http://www.fishbase.org), the world’s premier ...
Comparative analysis of the environmental costs of fish farming and crop production in arid areas
Type: Conference Paper
Using published data, 20 crop and 19 fish production systems were compared for efficiency of water and nutrient (nitrogen) use. In agriculture, rain-fed cassava was most efficient, followed by rain-fed beans, pivot-irrigated ...
Survival of Clarias gariepinus fry in earthern ponds: effects of composts and leaks
Type: Journal Article
To inform decisions on improving the yields of African catfish Clarias gariepinus fingerlings in earthen ponds, the hypothesis that composts and leaks were partly responsible for usually low and variable fry survivals was ...