Tannins and Ruminant Production in Indonesia

摘要

Ruminant livestock in Indonesia are fed almost exclusively on forages, by cut-and-carry systems or grazing sub systems, although in the past five years, feedlot operations have been developed for fattening cattle fed with industrial by-products as supplements and forages. A very wide range of plant species was fed to ruminants depending upon areas, season, altitude and animal species. Currently, more than 50 species of plants are fed, including grasses, leguminous trees, herbs and leaves. Tannins in these plants were detected by protein precipitation in low (0-1