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

Fish Feeds and Nutrition; Cool Weather Feeding of Channel Catfish

Published: 
June 1, 1975
U.S. Agency for International Development
In fish whose body temperature varies with water temperature, digestion and metabolism also are very much affected by water temperature. Fish feed less consistently during cool weather, and nutrient requirements, the ability to assimilate some types of food, and the deposition of body fat and...Read more

East African Fisheries Research

Published: 
May 29, 1975
U.S. Agency for International Development
GRANT, TECH ADVISORY ASSISTANCE ARE PROVIDED TO EAST AFRICA FRESHWATER FISHERIES ORGANIZATION (EAFFRO) TO DEVELOP CAPABILITY TO CONDUCT FISHSTOCK RESEARCH ON CONTINUING & INDEPENDENT BASIS. EAFFRO RESEARCH PROVIDES INFORMATION DATA BASE PERMITTING MEMBER STATES (KENYA, TANZANIA & UGANDA) TO...Read more

Fish Feeds and Nutrition; How Much Protein in Feeds for Channel Catfish?

Published: 
April 1, 1975
U.S. Agency for International Development
Technical reports have indicated that the optimum levels of protein feeds for growth of intensively-cultured channel catfish has ranged from 25 to 40 percent. These conclusions are based on specific percentages of protein found best for growth or profit under experimental conditions. The most...Read more

Project Paper: Central Helmand Drainage and Irrigation Improvement

Published: 
February 1, 1975
U.S. Agency for International Development
A project paper summarizing the drainage and irrigation improvement project in the Central Helmand of Afghanistan.Read more
Regional focus: 
AfghanistanSouth East Asia

Project Paper - Inland Fisheries Development

Published: 
February 1, 1975
U.S. Agency for International Development
A project paper on the Inland Fisheries Development Project, which aimed to improve the nutritious content of indigenous Jamaican foods through the creation of a viable inland fish industry.Read more
Regional focus: 
JamaicaLatin America and the Caribbean

Research and Development in Fresh-Water Fisheries

Published: 
February 1, 1975
U.S. Agency for International Development
This project tested the assumptions related to the Peruvian government's increased emphasis on developing inland fisheries.Read more
Regional focus: 
PeruLatin America and the Caribbean

Water Constraints to Corn Production in Central Brazil

Published: 
January 1, 1975
U.S. Agency for International Development
The area around Brasilia, Brazil is representative of millions of hectares in the tropics with very acid soils of extremely low fertility. The unfavorable water supplying properties of these soils together with the occurrence of wet season dry periods and limitations to root growth due to aluminum...Read more
Regional focus: 
BrazilLatin America and the Caribbean

Water Availability and Soil Suitability for Irrigation Water Impoundments in the Federal DistrICT of Brazil

Published: 
January 1, 1975
U.S. Agency for International Development
Agriculture on the Central Plateau of Brazil is poorly developed. The main reasons are the poor soil fertility and the high aluminum toxicity of the soils, restricting the rooting depth of many crops. Shallow rooting is responsible for the occurrence of serious soil-water stress conditions, even in...Read more
Regional focus: 
BrazilLatin America and the Caribbean

Inland Fisheries Project: Technical Report July-Dec. 1974

Published: 
January 1, 1975
U.S. Agency for International Development
Experiment designed to compare bangus production in newly constructed ponds with plankton as a food base.Read more
Regional focus: 
PhilippinesEast Asia and Pacific

Inland Fisheries

Published: 
January 1, 1975
U.S. Agency for International Development
This document outlines a three page appraisal report of a USAID aquaculture project in the Philippines. The project was not completed due to insufficient candidates for training.Read more
Regional focus: 
PhilippinesEast Asia and Pacific

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