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Created
July 22, 2024 09:29
by
Researcher Metadata Database
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Added
MFalk_Brushaccelerometer_Aug6_R1_submitted.docx
July 22, 2024 09:29
by
Researcher Metadata Database
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Added Creator M. Falk
July 22, 2024 09:29
by
Researcher Metadata Database
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Added Creator Melissa Cantor
July 22, 2024 09:29
by
Researcher Metadata Database
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Added Creator M. Hayes
July 22, 2024 09:29
by
Researcher Metadata Database
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Added Creator J. Jackson
July 22, 2024 09:29
by
Researcher Metadata Database
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Added Creator J. H.C. Costa
July 22, 2024 09:29
by
Researcher Metadata Database
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Published
July 22, 2024 09:29
by
Researcher Metadata Database
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Updated
July 22, 2024 22:04
by
[unknown user]
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July 24, 2024 10:33
by
jts5573
Keyword
- transducer, calves, grooming brush, radiofrequency identification, precision technology
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Updated Creator M. Hayes
July 24, 2024 10:33
by
jts5573
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Updated Creator J. Jackson
July 24, 2024 10:33
by
jts5573
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Updated Creator J. H.C. Costa
July 24, 2024 10:33
by
jts5573
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August 02, 2024 09:53
by
jts5573
Description
The objective of this study was to develop and validate an automated recording system of grooming brushes used in dairy calves aged 5 to 6 weeks. Holstein calves (n = 8) housed at the University of Kentucky were fitted with an ultra-high frequency (UHF) radio frequency identification (RFID) ear tag. The calf automatic grooming brush was isolated in a corner of the pen. Current transducers were used to confirm and log brush activation and motion. Two video cameras continuously recorded brush use to create a true value for brush use by each calf during the experimental period. All RFID recordings of brush use alone and in combination with the transducer meter system were regressed against video recordings. After development and adjustment of the system, we predicted the regression of all RFID readings and video observations to be moderate due to false positive readings, and to improve with inclusion of a transducer meter. For daily brush time (min), the coefficient of determination for RFID readings against video observations was weak (r<sup>2</sup>= 0.26), and for daily brush visits, the correlation coefficient for the RFID reading system against video observations was moderate (r<sup>2</sup>=0.35). However, incorporation of a transducer meter data to eliminate false positive RFID readings resulted in a strong correlation coefficient for daily brush time (min r<sup>2</sup>=0.66). These results suggest that automatic grooming brush use in dairy calves has the potential to be automatically recorded using the UHF RFID system in combination with a transducer meter system. Future projects should include other variables and improve the UHF RFID recordings to avoid false negatives.
- The objective of this study was to develop and validate an automated recording system of grooming brushes used in dairy calves aged 5 to 6 weeks. Holstein calves (n = 8) housed at the University of Kentucky were fitted with an ultra-high frequency (UHF) radio frequency identification (RFID) ear tag. The calf automatic grooming brush was isolated in a corner of the pen. Current transducers were used to confirm and log brush activation and motion. Two video cameras continuously recorded brush use to create a true value for brush use by each calf during the experimental period. All RFID recordings of brush use alone and in combination with the transducer meter system were regressed against video recordings. After development and adjustment of the system, we predicted the regression of all RFID readings and video observations to be moderate due to false positive readings, and to improve with inclusion of a transducer meter. For daily brush time (min), the coefficient of determination for RFID readings against video observations was weak (r<sup>2</sup>= 0.26), and for daily brush visits, the correlation coefficient for the RFID reading system against video observations was moderate (r<sup>2</sup>=0.35). However, incorporation of a transducer meter data to eliminate false positive RFID readings resulted in a strong correlation coefficient for daily brush time (min r<sup>2</sup>=0.66). These results suggest that automatic grooming brush use in dairy calves has the potential to be automatically recorded using the UHF RFID system in combination with a transducer meter system. Future projects should include other variables and improve the UHF RFID recordings to avoid false negatives.
- Written for the 10th International Livestock Symposium
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August 02, 2024 09:53
by
jts5573
Work Title
Validation of radio frequency identification with a current transducer to quantify the use of an automatic grooming brush in pre-weaned dairy calves. In: 10th International Livestock Symposium
- Validation of radio frequency identification with a current transducer to quantify the use of an automatic grooming brush in pre-weaned dairy calves.