1. Department of Biosystems Machinery Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
2. XCore System Co., Ltd., Sejong 30141, Republic of Korea
3. Animal Products Research and Development Division, National Institute of Animal Science, Wanju 55365, Republic of Korea
4. Department of Smart Agricultural Systems, Chungnam National University, Daejeon 34134, Republic of Korea