Comparison of Milk Yield and Milk Composition Between Before and After Auto Milking System(AMS) USA in Dairy Cow
2011
Ki, K.S., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Jeong, Y.H., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Park, S.J., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Kim, S.B., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Lee, W.S., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Lee, H.J., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Lim, D.H., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Kim, H.S., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Kwon, E.G., National Institute of Animal Science, RDA, Cheonan, Republic of Korea | Cho, M.Y., Dairy Cattle Improvement Center, Goyang, Republic of Korea | Yeo, J.M., Korea National College of Agriculture and Fisheries, Hwaseong, Republic of Korea
The present study was conducted to investigate effects of auto milking system (AMS) on milk yield and milk composition in dairy cow using dairy herd improvement (DHI) record. DHI records for 147 cows were compared between a year before and after AMS use. AMS significantly increased daily milk yield compared with the conventional milking system (30.4kg vs 34.3 kg for CMS and AMS, respectively). There were no significant differences in the contents of milk fat (3.7% vs 3.8% for CMS and AMS) and milk protein(3.2% vs 3.2% for CMS and AMS) between CMS and AMS. But the yields of milk fat and milk protein were significantly higher for AMS than for CMS. Average somatic cell counts were 169,400/ml (1st grade) before AMS use but increased by 314,400/ml (2nd grade) after AMS use. Overall, AMS increased milk yield and the yields of milk fat and protein without affecting milk composition but also increased somatic cell count.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Korea Agricultural Science Digital Library