A wireless network for measuring rumen pH in dairy cows

D. Goense; W. Houwers; A. Klop; H.-C. Müller; D. Unsenos; W. Wehren

A wireless network for measuring rumen pH in dairy cows

于Precision livestock farming '09

著者：

D. Goense

D. Goense ¹Animal sciences group of Wageningen UR, PO box 65, 8200 AB Lelystad, the Netherlands

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W. Houwers

W. Houwers ¹Animal sciences group of Wageningen UR, PO box 65, 8200 AB Lelystad, the Netherlands

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A. Klop

A. Klop ¹Animal sciences group of Wageningen UR, PO box 65, 8200 AB Lelystad, the Netherlands

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H.-C. Müller

H.-C. Müller ²Fraunhofer-Institut für mikroelektronische Schaltungen und Systeme, Finkenstraße 61, 47057, Duisburg, Germany

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D. Unsenos

D. Unsenos ³ISIS IC GmbH, Handelsweg 1, D 46485 Wesel, Germany

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, and

W. Wehren

W. Wehren ⁴Landwirtschaftskammer Nordreinwestfalen, Landwirtschaftszentrum Haus Riswick, Elsenpaß 5, 47533 Kleve, Germany

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类型:: 章节

Page Range:: 115–125

DOI:: https://doi.org/10.3920/9789086866632_015

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The objective was to develop a continuous pH monitoring system for dairy cows based on wireless sensor technology. The requirement to pass body tissue with low energy resulted in the use of the 124 kHz frequency for the measuring bolus and a two radio repeater that used 2.4 GHz for further communication to a gateway. Messages from two of the three investigated boluses were missing for periods of four to ten minutes while two is intended. This can be overcome by proper tuning of radio power. The boluses proved to stay well in the reticulum part of the rumen of three cows during a one week experiment. The combined temperature and pH sensor, based on ISFET technology, showed clearly fluctuations in temperature due to drinking of the cows. Dynamics of pH are also visible. Further research will be required to determine how pH measurements by a bolus are to be compared to other methods used so far in research. The used pH sensors showed considerable drift and elimination of this problem has priority for further research and development.

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Precision livestock farming '09

ISBN:: 9789086866632

出版社:: Wageningen Academic

印刷出版日期:: 30 Oct 2009

Subjects
- Life Sciences
  - General
  - Animal & Veterinary

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A wireless network for measuring rumen pH in dairy cows

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