Correlation Analysis Between Milking Levels and Automatic Milking System of Dairy Cattle
2015
Nam, I.S., Department of Animal Life and Environment Science, Hankyong National University, Anseong, Republic of Korea | Chang, K.M., Department of Animal Life and Environment Science, Hankyong National University, Anseong, Republic of Korea | Son, Y.S., Division of Biotechnology, Korea University, Seoul, Republic of Korea | Ki, K.S., National Institute of Animal Science, R.D.A, Suwon, Republic of Korea | Jung, H.Y., National Institute of Animal Science, R.D.A, Suwon, Republic of Korea | Kang, H.S., National Institute of Animal Science, R.D.A, Suwon, Republic of Korea | Park, S.M., National Institute of Animal Science, R.D.A, Suwon, Republic of Korea
Total three hundred and fourteen dairy cows were used in this study to analysis of correlation between milking levels and automatic milking system (AMS). Cows were divided into five groups according to their milking levels (over 50 kg/day, 49~40 kg/day, 39~30 kg/day, 29~20 kg/day, 19~10 kg/day). All groups were compared with daily milking number, rejected number by AMS, residence time at AMS, milking time, flow rate of milk. Daily milking number and milking time were higher in the group of over 50 kg and 49~40 kg than that of other groups (p0.05). There are no correlation on rejected number by AMS, residence time at AMS and flow rate of milk between milking levels and AMS. In addition, we found that the milk yield affected to feed intake and rumination of dairy cows. In conclusion, present results indicated that installation of AMS on dairy farms with high milk producing cows might be affected positively.
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