Productivity and Efficiency
According to the U.S. Environmental Protection Agency, water efficiency is the smart use of our water resources through water-saving technologies and simple steps. Using water efficiently will help ensure reliable water supplies today and for future generations. Topics addressed in this theme provide insights, lessons, and guidance on how diverse stakeholders are working to improve water management and reduce water use.
Productivity and Efficiency Resources
Developments in the Culture of Channel Catfish, Ictalurus Punctatus Rafinesque, in Cages Suspended in Ponds
Published:
January 1, 1969U.S. Agency for International Development
Since 1966, a study has been conducted in earthen ponds of the Auburn University Agricultural Experiment Station, Auburn, Alabama, to evaluate the potential of suspended cages for culturing catfish, from fingerlings to marketable size, and to develop the basic techniques necessary for the extension...Read more
Economic Evaluation of Brazil Aquaculture Project (11/19/73-12/3/73)
Published:
January 1, 1968U.S. Agency for International Development
ANALYZES THE ECONOMIC VIABILITY OF PROPOSED FARMER-OWNED AND OPERATED AQUACULTURE ENTERPRISES IN NORTHEAST BRAZIL. THE EVALUATION PRESENTS ESTIMATED FIXED AND VARIABLE COSTS AS WELL AS AN ILLUSTRATIVE PROFIT AND LOSS STATEMENT. FIGURES ARE BASED ON THE ASSUMPTION THAT EACH FARMER WOULD BUILD AND...Read more
Regional focus:
Brazil, Latin America and the CaribbeanRelationship Between Rate of Feeding, Rate of Growth, and Rate of Conversion in Feeding Trials With 2 Species of Tilapia: T.Mossambica Peters and T.Nilotica Linneaus
Published:
January 1, 1968U.S. Agency for International Development
An experiment was conducted to determine the relationship between feeding rate, growth rate and conversion in two species of tilapia.Read more
Testing Plant Materials for Detection of Oxygen - Deficient Water in Ponds
Published:
January 1, 1968U.S. Agency for International Development
This report provides an easy method of determining the extent of oxygen deficiency in ponds, using the staining qualities of plant materials.Read more
Evaluation of Eight Species of Fish for Aquatic Weed Control
Published:
January 1, 1968U.S. Agency for International Development
A study to determine the value of herbivorous fishes in biological control of aquatic weeds.Read more
Control of Snails By the Redear (Shellcracker) Sunfish
Published:
January 1, 1968U.S. Agency for International Development
This study analyzes the biological control of two species of native pond snails using the redear sunfish. The feeding habits of redears were studied under varied conditions in aquaria. Snails alone were fed to the redears at rates up to 8 percent of their body weight for seven days and with few...Read more
Feeds and Feeding of Warm - Water Fish in North America
Published:
January 1, 1968U.S. Agency for International Development
Research on the nutrition of warm-water fish in North America is still in its infancy. The first controlled experiments were not conducted until the early 1950's. Almost all of the research work on the nutrition of warm-water fish has been concerned with the channel catfish. This review also...Read more
Vitamins Essential for Growth of Channel Catfish
Published:
January 1, 1966U.S. Agency for International Development
Symptoms were identified in channel catfish fed diets deficient in the water-soluble vitamins pyridoxine, pantothenic acid, riboflavin, thiamine, folic acid, nicotinic acid, B-12, or choline.Read more
Aquatic Weed Control in Fish Ponds
Published:
January 1, 1966U.S. Agency for International Development
Results of 30 years of aquatic weed control research in fish ponds at this Station are summarized. This summary includes a listing of important algae genera and aquatic weed species, and information on pond construction features of significance in aquatic weed control, as well as mechanical,...Read more
Development of Commercial Farming of Tilapia in Jamaica, 1979-1983
U.S. Agency for International Development
This report covers the development of commercial farming of tilapia in Jamaica. A common reaction to the idea of commercial fish farming in Jamaica is to question its appropriateness in a small country surrounded by the sea. This island, however has long been a heavy importer of fish. The clear...Read more
Regional focus:
Jamaica, Latin America and the CaribbeanDon't see what you're looking for? You can search USWP member sites, request a resource, or contact the USWP.