Modification of cereal grains for use in formulated fish feeds

摘要

Currently about one-third of the global wild fish harvest Above: Effect of striped rust on barley plants. Disease resistance is an important trait. Below: A field of experimental barley. is used to produce fish-meal and oils, of which about 40 percent and 75 percent respectively are used to raise farmed fish. Because fish meal and fish oil supplies are finite, and will be insufficient to meet the increasing demand from aquaculture and other clients, ingredients from terrestrial plants will be required. In the January 2002 issue of Hatchery International, we examined the selection offish with enhanced genetic traits for digesting plant-based feed formulations. In this issue we examine the other side of the coin, the selection and development of suitable plants for formulating fish feeds.