1. Agus Setiad:
Faculty of Animal and Agricultural Science, Diponegoro University, Semarang, Indonesia
2. Siswanto Imam Santoso:
Faculty of Animal and Agricultural Science, Diponegoro University, Semarang, Indonesia
3. Sumarsono L. D. Mahfudz:
Faculty of Animal and Agricultural Science, Diponegoro University, Semarang, Indonesia
4. A. B. Susanto:
Department of Marine Science, Diponegoro University, Semarang, Indonesia