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Identification of the Rumination in Cattle Using Support Vector Machines with Motion-Sensitive Bolus Sensors
The reticuloruminal function is central to the digestive efficiency in ruminants. For cattle, collar- and ear tag-based accelerometer monitors have been developed to assess the time spent ruminating on an individual animal. Cattle that are ill feed less and so ruminate less, thus, the estimation of...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6427569/ https://www.ncbi.nlm.nih.gov/pubmed/30866541 http://dx.doi.org/10.3390/s19051165 |
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author | Hamilton, Andrew W. Davison, Chris Tachtatzis, Christos Andonovic, Ivan Michie, Craig Ferguson, Holly J. Somerville, Laura Jonsson, Nicholas N. |
author_facet | Hamilton, Andrew W. Davison, Chris Tachtatzis, Christos Andonovic, Ivan Michie, Craig Ferguson, Holly J. Somerville, Laura Jonsson, Nicholas N. |
author_sort | Hamilton, Andrew W. |
collection | PubMed |
description | The reticuloruminal function is central to the digestive efficiency in ruminants. For cattle, collar- and ear tag-based accelerometer monitors have been developed to assess the time spent ruminating on an individual animal. Cattle that are ill feed less and so ruminate less, thus, the estimation of the time spent ruminating provides insights into the health of individual animals. pH boluses directly provide information on the reticuloruminal function within the rumen and extended (three hours or more) periods during which the ruminal pH value remains below 5.6 is an indicator that dysfunction and poor welfare are likely. Accelerometers, incorporated into the pH boluses, have been used to indicate changes in behaviour patterns (high/low activity), utilised to detect the onset of oestrus. The paper demonstrates for the first time that by processing the reticuloruminal motion, it is possible to recover rumination periods. Reticuloruminal motion energy and the time between reticuloruminal contractions are used as inputs to a Support Vector Machine (SVM) to identify rumination periods with an overall accuracy of 86.1%, corroborated by neck mounted rumination collars. |
format | Online Article Text |
id | pubmed-6427569 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64275692019-04-15 Identification of the Rumination in Cattle Using Support Vector Machines with Motion-Sensitive Bolus Sensors Hamilton, Andrew W. Davison, Chris Tachtatzis, Christos Andonovic, Ivan Michie, Craig Ferguson, Holly J. Somerville, Laura Jonsson, Nicholas N. Sensors (Basel) Article The reticuloruminal function is central to the digestive efficiency in ruminants. For cattle, collar- and ear tag-based accelerometer monitors have been developed to assess the time spent ruminating on an individual animal. Cattle that are ill feed less and so ruminate less, thus, the estimation of the time spent ruminating provides insights into the health of individual animals. pH boluses directly provide information on the reticuloruminal function within the rumen and extended (three hours or more) periods during which the ruminal pH value remains below 5.6 is an indicator that dysfunction and poor welfare are likely. Accelerometers, incorporated into the pH boluses, have been used to indicate changes in behaviour patterns (high/low activity), utilised to detect the onset of oestrus. The paper demonstrates for the first time that by processing the reticuloruminal motion, it is possible to recover rumination periods. Reticuloruminal motion energy and the time between reticuloruminal contractions are used as inputs to a Support Vector Machine (SVM) to identify rumination periods with an overall accuracy of 86.1%, corroborated by neck mounted rumination collars. MDPI 2019-03-07 /pmc/articles/PMC6427569/ /pubmed/30866541 http://dx.doi.org/10.3390/s19051165 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Hamilton, Andrew W. Davison, Chris Tachtatzis, Christos Andonovic, Ivan Michie, Craig Ferguson, Holly J. Somerville, Laura Jonsson, Nicholas N. Identification of the Rumination in Cattle Using Support Vector Machines with Motion-Sensitive Bolus Sensors |
title | Identification of the Rumination in Cattle Using Support Vector Machines with Motion-Sensitive Bolus Sensors |
title_full | Identification of the Rumination in Cattle Using Support Vector Machines with Motion-Sensitive Bolus Sensors |
title_fullStr | Identification of the Rumination in Cattle Using Support Vector Machines with Motion-Sensitive Bolus Sensors |
title_full_unstemmed | Identification of the Rumination in Cattle Using Support Vector Machines with Motion-Sensitive Bolus Sensors |
title_short | Identification of the Rumination in Cattle Using Support Vector Machines with Motion-Sensitive Bolus Sensors |
title_sort | identification of the rumination in cattle using support vector machines with motion-sensitive bolus sensors |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6427569/ https://www.ncbi.nlm.nih.gov/pubmed/30866541 http://dx.doi.org/10.3390/s19051165 |
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