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Online Real-time Monitoring of Milk Quality during Milking by Near-infrared Spectroscopy

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/71268

Title: Online Real-time Monitoring of Milk Quality during Milking by Near-infrared Spectroscopy
Authors: Kawasaki, M. Browse this author
Kawamura, S. Browse this author →KAKEN DB
Nakatsuji, H. Browse this author
Natsuga, M. Browse this author
Keywords: milk quality
somatic cell counts
milk urea nitrogen
robustness of calibration
Issue Date: 2005
Publisher: American Society of Agricultural Engineers (ASAE)
Journal Title: ASAE meeting paper
Start Page: No. 053045
Abstract: Recently, there has been a need by dairy farmers for a method to assess milk quality in real time during milking. We have constructed an on-line near-infrared (NIR) spectroscopic sensing system on an experimental basis. The NIR system can be used for real-time monitoring of milk quality items such as fat, protein, lactose, somatic cell count, and milk urea nitrogen during milking with sufficient precision and accuracy. We tried to improve the robustness of calibration (CAL) models for measurement of milk quality items using NIR spectrum data obtained from two dairy herds. When CAL models developed from data obtained from one herd were used for validation of data obtained from the same herd, the milk quality items could be measured with high levels of accuracy. On the other hand, when the CAL models were used for validation of data obtained from the other herd, the levels of accuracy in measurements of all milk quality items except fat were low. The low levels of accuracy may be caused by factors such as differences in cow individuality, lactation stage, calving times, feeding stage and experimental period (temperatures in the dairy barn). To develop robust calibration models for measurement of milk quality items, therefore, data acquisition from various milk spectra caused by these factors is necessary.
Description: Written for presentation at the 2005 ASAE Annual International Meeting Sponsored by ASAE
Rights: Technical presentations are not subject to the formal peer review process by ASAE editorial committees; therefore, they are not to be presented as refereed publications. Citation of this work should state that it is from an ASAE meeting paper. EXAMPLE: Author's Last Name, Initials. 2005. Title of Presentation. ASAE Paper No. 05xxxx. St. Joseph, Mich.: ASAE.
Type: article
URI: http://hdl.handle.net/2115/71268
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 川村 周三

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