The Potency of Fibre Feeds and Their Needs by The Ruminants in Indonesia

Abstract

From the stand point of the quality of fibre feed ingredients in each provinvc in Indonesia, to fulfill the maintenance requirements of ruminants animal unit (AU), the AU are sufficiently provided by the other are insuffficiently supplied by certain other fibre feed ingredients. In general, from the stand point of dry-matter (DM) requirement of the AU from the fibre feeds, in the West Part of Indonesia, the situation can be described as follows: in this part the grasslands area are as large as
652,749 hectares (ha) in 1993 yielding 8,533,786 tons DM of fibre feeds for the DM needs of 3,896,706 AU/year, and the agricultural crops land are as large as 15,480,787 ha yielding 22,683,734 tons of fiber feeds DM for the DM needs of
10,357,869 AU/year. In this part there are 5,939,507 AU, so that the remaining fiber feeds DM would still be providing for another (3,896,706 + 10,357,869 - 5,939,507) = 8,315,068 AU/year. ln the East Part of Indonesia, the description of the status is like the following: the grasslands areas are as large as 1,693,148 ha in 1993 yielding 6,884,546 tons of fiber feeds DM for the need of 3,143,628 AU/year and the areas of agricultural crops land are as large as 2,947,086 ha yielding 4,761,877 tons of fiber feeds DM for fulfilling the needs of 2,174,374 AU/year. In this part the AU are as much as 2,398,100 AU, so that the remaining DM fiber feeds would still be sufficient for another (3,l43,628 + 2,174,374 - 2,398,100) = 2,919,902 AU/year. To fulfill the maintenance requirement of the ruminants the quality of the grasslands should be improved so that their content of crude protein (CP) and total digestible nutrients (TDN) should be at least 7% and 42% respectively, and for production the contents
should be at least 12% and 55%, respectively; by planting legumes in the grass-dominating pastures, and also by better management of pasture utilization.