The author is a professor in the field of Animal Husbandry. Since 1986 until now he has been a lecturer at the Faculty of Animal Husbandry, Udayana University, Denpasar-Bali, Indonesia. Has done a lot of research, especially in the field of monogastric animal nutrition. Hundreds of publications have been published in international and national journals. Has successfully produced 10 intellectual property rights and has written 10 textbooks, especially in the field of animal husbandry. The book that won an award from the Indonesian Ministry of Higher Education entitled "Alternative Animal Feed Waste and Technology Applications" (ISBN.978-979-8286-51-3). The author is also still an editorial board in international journals, such as: (i) Pakistan Journal of Biological Sciences/Q3  (https://scialert.net/archivedetails.php?issn=1028-8880&issueno=347 ); (ii) International Journal of Pharmacology/Q3 (https://scialert.net/current.php?issn=1811-7775 ); (iii) Asian Journal of Animal Sciences/Thomson ISI (https://scialert.net/current.php?issn=1819-1878 ); (iv) Asian Journal of Poultry Science (https://scialert.net/current.php?issn=1819-3609 ); (v) International Journal of Nutrition and Food Sciences (http://www.sciencepublishinggroup.com/journal/index?journalid=153 ). Now the writer serves as Coordinator of the Doctoral Study Program in Animal Husbandry, Udayana University, Denpasar and actively researches, scientific publications, and writes textbooks.