1. Department of Animal Science; Faculty of Agriculture; Khon Kaen University; Khon Kaen Thailand
2. Department of Surgery and Theriogenology; Faculty of Veterinary Medicine; Khon Kaen University; Khon Kaen Thailand
3. Department of Livestock Development; Bureau of Biotechnology in Livestock Production; Bangkok Thailand
4. Department of Livestock Development; Veterinary Research and Development Center (Upper Northeastern Region); Khon Kaen Thailand
5. Animal Breeding and Reproduction Research Division; NARO Institute of Livestock and Grassland Science; Tsukuba Japan
6. Food and Fertilizer Technology Center; Taipei Taiwan