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Response of two generations of selection to increased body weight in channel catfish, Ictalurus punctatus, compared to hybridization with blue catfish, I. furcatus, Males
Type: Journal Article
Two generations of selection for increased body weight in Kansas (AU-KS-2) and Marion (AU-MS-2) lines of channel catfish, Ictalurus punctatus, resulted in a 12% and 11% increase in body weight at market size, respectively. ...
Weed control by adult and juvenile tilapia Tilapia rendalli in rainfed ponds
Type: Journal Article
Two studies were conducted in consecutive years over the time period 14 January to 1 July to determine whether labor-savings and fish growth enhancement could be achieved by stocking Tilapia rendalli directly into ponds ...
Making experiment station results more useful to African fish farmers
Type: Journal Article
Rather than using more or less ideal conditions for setting experimental controls, the use of conditions similar to those likely to be encountered by farmers should produce research results which are realistically achievable ...
Training in African aquaculture development
Type: Journal Article
The article focuses on the types of training needed in African aquaculture development. The author suggested that rather than needing less training, extension agents and others who operate in the idiosyncratic world of the ...
Integrated resources management, integrated agriculture-aquaculture and the African farmer
Type: Journal Article
Despite the expenditure of huge amounts of money and human effort, the Green Revolution has largely failed to benefit the vast majority of the rural poor in Africa: those smallholding farmers who sell little, if any, of ...
How can research best serve the needs of aquaculture in subsaharan Africa?
Type: Journal Article
Discussion on whether research is the answer to best serve the needs of aquaculture in SubSaharan Africa is presented. New methods of user-participatory, on-farm research being tested by ICLARM and other agencies in Asia ...
Species selection for smallholder aquaculture
Type: Journal Article
Systems for selection of species for smallholder aquaculture are presented. These are: food fits; management decisions; and economic criteria. Food fits suggests categorizing pond food resources into a few categories based ...
Fry production of Shire River tilapia Oreochromis shiranus at two broodstock sex ratios
Type: Journal Article
Optimal sex ratio in tilapia breeding ponds depends upon stocking density. However, under certain circumstances, altering the male: female sex ratio from a more or less natural 1:1 to 1:2 or even higher has been shown to ...
The context of smallholding integrated aquaculture in Malawi: a case study of SubSaharan Africa
Type: Journal Article
What direction should SubSaharan African agriculture take — industrialized or smallholder agriculture? The author says that a compromise, using the best elements of each, would be best, but in order to develop a strategy, ...
Farming fish to save water
Type: Journal Article
Author's comment on the farming of fish as a efficient means in terms of water use.