1. Directorate General of Livestock and Animal Health, Ministry of Agriculture, Jakarta, Indonesia, Indonesia
2. Animal Science, Faculty of Animal and Agricultural Sciences, Universitas Diponegoro, Semarang, Central Java, Indonesia, Indonesia
3. Agribusiness, Faculty of Animal and Agricultural Sciences, Universitas Diponegoro, Semarang, Central Java, Indonesia, Indonesia
4. Faculties of Animal and Agricultural Science, Diponegoro University, Indonesia, Indonesia