Saenab, Andi; Bogor Agricultural University; KG, Wiryawan; Department of Nutrition and Feed Technology, Faculty of Animal Science, Bogor Agricultural University; Y, Retnani; Department of Nutrition and Feed Technology, Faculty of Animal Science, Bogor Agricultural University; Wina, Elizabeth; Indonesian Research Institute for Animal Production, P.O. Box 221 Bogor 16002 Indonesia. (Indonesian Center for Animal Research and Development (ICARD), )