1. Graduate School of Nutrition and Feed Science, Faculty of Animal Science, IPB University, Jalan Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia; Department of Livestock and Animal Health Services of Central Java Province, Jalan Jenderal Gatot Subroto, Tarubudaya, Ungaran 50517, Indonesia.
2. Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Jalan Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia.
3. Department of Anatomy, Physiology, and Pharmacology, Faculty of Veterinary Medicine, IPB University, Jalan Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia.