Concept study of an implantable microsystem for electrical resistance and temperature measurements in dairy cows, suitable for estrus detection
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10348/1553 |
Resumo: | In cattle breeding industry, where artificial insemination techniques are employed, the successful detection of estrus onset leads to considerable cost-saving in herd management. One of the most reliable approaches is based on the determination of progesterone concentration in milk. However, these methods rely on the biosensor concept where a biological substrate is used in a chemical-binding reaction to directly or indirectly produce some effect (electrical or light) that is used at the transducer level. These methods present several drawbacks concerning real-time measurements due to the complexity of the reactions involved and reagent/waste handling. Another approach is to combine measurements of temperature and electrical resistance of reproductive tissues to predict estrus. Using a low-power microsystem with wireless capabilities it is possible to take these measurements in situ and more frequently. The proposed microsystem comprises a second-order delta–sigma modulator for analog-to-digital conversion and a class-E radio-frequency (RF) transmitter operating in the ISM-band of 433MHz to transfer acquired data to a collar. Electrical resistance is measured by using a modifiedWenner array and temperature by the on-chip temperature sensor. System (including battery and antenna) package is made of a tissue-compatible material to allow implantation in the cow’s vulvar muscle. Since estrus prediction is based on relative changes of the two correlated parameters, calibration is not necessary. Some preliminary results regarding the measuring concept are presented. |
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Concept study of an implantable microsystem for electrical resistance and temperature measurements in dairy cows, suitable for estrus detectionMicrosystemElectrical resistivity sensorWireless interfaceEstrus predictionIn cattle breeding industry, where artificial insemination techniques are employed, the successful detection of estrus onset leads to considerable cost-saving in herd management. One of the most reliable approaches is based on the determination of progesterone concentration in milk. However, these methods rely on the biosensor concept where a biological substrate is used in a chemical-binding reaction to directly or indirectly produce some effect (electrical or light) that is used at the transducer level. These methods present several drawbacks concerning real-time measurements due to the complexity of the reactions involved and reagent/waste handling. Another approach is to combine measurements of temperature and electrical resistance of reproductive tissues to predict estrus. Using a low-power microsystem with wireless capabilities it is possible to take these measurements in situ and more frequently. The proposed microsystem comprises a second-order delta–sigma modulator for analog-to-digital conversion and a class-E radio-frequency (RF) transmitter operating in the ISM-band of 433MHz to transfer acquired data to a collar. Electrical resistance is measured by using a modifiedWenner array and temperature by the on-chip temperature sensor. System (including battery and antenna) package is made of a tissue-compatible material to allow implantation in the cow’s vulvar muscle. Since estrus prediction is based on relative changes of the two correlated parameters, calibration is not necessary. Some preliminary results regarding the measuring concept are presented.Elsevier2012-02-03T11:04:01Z2006-01-01T00:00:00Z2006info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10348/1553eng0924 - 4247Morais, RaulValente, AntónioAlmeida, José CarlosSilva, AméliaSoares, SalvianoReis, M.C.Valentim, RamiroAzevedo, Jorge Manuel Teixeira deinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-02T12:48:38Zoai:repositorio.utad.pt:10348/1553Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:04:39.743723Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Concept study of an implantable microsystem for electrical resistance and temperature measurements in dairy cows, suitable for estrus detection |
title |
Concept study of an implantable microsystem for electrical resistance and temperature measurements in dairy cows, suitable for estrus detection |
spellingShingle |
Concept study of an implantable microsystem for electrical resistance and temperature measurements in dairy cows, suitable for estrus detection Morais, Raul Microsystem Electrical resistivity sensor Wireless interface Estrus prediction |
title_short |
Concept study of an implantable microsystem for electrical resistance and temperature measurements in dairy cows, suitable for estrus detection |
title_full |
Concept study of an implantable microsystem for electrical resistance and temperature measurements in dairy cows, suitable for estrus detection |
title_fullStr |
Concept study of an implantable microsystem for electrical resistance and temperature measurements in dairy cows, suitable for estrus detection |
title_full_unstemmed |
Concept study of an implantable microsystem for electrical resistance and temperature measurements in dairy cows, suitable for estrus detection |
title_sort |
Concept study of an implantable microsystem for electrical resistance and temperature measurements in dairy cows, suitable for estrus detection |
author |
Morais, Raul |
author_facet |
Morais, Raul Valente, António Almeida, José Carlos Silva, Amélia Soares, Salviano Reis, M.C. Valentim, Ramiro Azevedo, Jorge Manuel Teixeira de |
author_role |
author |
author2 |
Valente, António Almeida, José Carlos Silva, Amélia Soares, Salviano Reis, M.C. Valentim, Ramiro Azevedo, Jorge Manuel Teixeira de |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Morais, Raul Valente, António Almeida, José Carlos Silva, Amélia Soares, Salviano Reis, M.C. Valentim, Ramiro Azevedo, Jorge Manuel Teixeira de |
dc.subject.por.fl_str_mv |
Microsystem Electrical resistivity sensor Wireless interface Estrus prediction |
topic |
Microsystem Electrical resistivity sensor Wireless interface Estrus prediction |
description |
In cattle breeding industry, where artificial insemination techniques are employed, the successful detection of estrus onset leads to considerable cost-saving in herd management. One of the most reliable approaches is based on the determination of progesterone concentration in milk. However, these methods rely on the biosensor concept where a biological substrate is used in a chemical-binding reaction to directly or indirectly produce some effect (electrical or light) that is used at the transducer level. These methods present several drawbacks concerning real-time measurements due to the complexity of the reactions involved and reagent/waste handling. Another approach is to combine measurements of temperature and electrical resistance of reproductive tissues to predict estrus. Using a low-power microsystem with wireless capabilities it is possible to take these measurements in situ and more frequently. The proposed microsystem comprises a second-order delta–sigma modulator for analog-to-digital conversion and a class-E radio-frequency (RF) transmitter operating in the ISM-band of 433MHz to transfer acquired data to a collar. Electrical resistance is measured by using a modifiedWenner array and temperature by the on-chip temperature sensor. System (including battery and antenna) package is made of a tissue-compatible material to allow implantation in the cow’s vulvar muscle. Since estrus prediction is based on relative changes of the two correlated parameters, calibration is not necessary. Some preliminary results regarding the measuring concept are presented. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-01-01T00:00:00Z 2006 2012-02-03T11:04:01Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10348/1553 |
url |
http://hdl.handle.net/10348/1553 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0924 - 4247 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137132722257920 |