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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
02/07/2019 |
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Data da última atualização: |
24/01/2023 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
RODRIGUES, J. P. P.; PEREIRA, L. G. R.; DINIZ NETO, H. do C.; LOMBARDI, M. C.; LAGE, C. F. de A.; COELHO, S. G.; SACRAMENTO, J. P.; MACHADO, F. S.; TOMICH, T. R.; MAURÍCIO, R. M.; CAMPOS, M. M. |
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Afiliação: |
João Paulo Pacheco Rodrigues, Universidade Federal do Sul e Sudeste do Pará; LUIZ GUSTAVO RIBEIRO PEREIRA, CNPGL; Hilton do Carmo Diniz Neto, UFMG; Mayara Campos Lombardi, UFMG; Camila Flávia de Assis Lage, UFMG; Sandra Gesteira Coelho, UFMG; João Paulo Sacramento, UFSJ; FERNANDA SAMARINI MACHADO, CNPGL; THIERRY RIBEIRO TOMICH, CNPGL; Rogério Martins Maurício, UFSJ; MARIANA MAGALHAES CAMPOS, CNPGL. |
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Título: |
Technical note: Evaluation of an automatic system for monitoring rumination time in weaning calves. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Livestock Science, v. 219, p. 86-90, jan. 2019. |
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DOI: |
10.1016/j.livsci.2018.11.017 |
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Idioma: |
Inglês |
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Conteúdo: |
Rumination time is a relevant marker for health evaluation. The use of rumination monitoring systems can decrease labor costs when measuring rumination time. The objectives of this study were to: i) validate the Hr-Tag rumination monitoring system for estimating rumination time in Zebu calves during the weaning period and ii) to evaluate the Hr-Tag capacity to identify differences in daily rumination patterns during the weaning period. Thirty-two Gyr calves averaging 69 ± 7.6 kg body weight and 77.0 ± 4.0 days were used. Calves were fed 4.7 ± 0.5 L/day of whole milk and ad libitum commercial textured starter ration up to 83 days old (pre-weaning period). During the weaning period (84?86 days old) the same starter was used, but corn silage was also available and only half the milk dose was offered. After weaning (87?92 days old, post-weaning period) only corn silage and starter were used. For the Hr-Tag system validation, the rumination time obtained by Hr-Tag was compared with visual observations at four 2 h intervals (0600 to 0800, 0800 to 1000, 1400 to 1600, and 1600 to 1800 h) at pre- and post-weaning. Two observers were used in all visual evaluations. To compare daily rumination pattern at pre-weaning, weaning and post-weaning, only the Hr-Tag data was used. Rumination time values between observers were highly correlated (ρ = 0.956; P < 0.001). Visual and Hr-Tag rumination time did not follow a similar probability distribution (P < 0.001), but they were correlated (ρ = 0.702; P < 0.001). The Hr-Tag system overestimated rumination time, mainly when the calves had visual rumination activity close to or equal to zero. The Hr-Tag detected differences in rumination time between weaning periods (P < 0.05). In conclusion, the Hr-Tag system overestimates rumination time in weaning calves, mainly by recording nonexistent rumination. However, the Hr-Tag system recorded rumination values correlated to visual observations and detected differences in rumination activity among weaning periods. MenosRumination time is a relevant marker for health evaluation. The use of rumination monitoring systems can decrease labor costs when measuring rumination time. The objectives of this study were to: i) validate the Hr-Tag rumination monitoring system for estimating rumination time in Zebu calves during the weaning period and ii) to evaluate the Hr-Tag capacity to identify differences in daily rumination patterns during the weaning period. Thirty-two Gyr calves averaging 69 ± 7.6 kg body weight and 77.0 ± 4.0 days were used. Calves were fed 4.7 ± 0.5 L/day of whole milk and ad libitum commercial textured starter ration up to 83 days old (pre-weaning period). During the weaning period (84?86 days old) the same starter was used, but corn silage was also available and only half the milk dose was offered. After weaning (87?92 days old, post-weaning period) only corn silage and starter were used. For the Hr-Tag system validation, the rumination time obtained by Hr-Tag was compared with visual observations at four 2 h intervals (0600 to 0800, 0800 to 1000, 1400 to 1600, and 1600 to 1800 h) at pre- and post-weaning. Two observers were used in all visual evaluations. To compare daily rumination pattern at pre-weaning, weaning and post-weaning, only the Hr-Tag data was used. Rumination time values between observers were highly correlated (ρ = 0.956; P < 0.001). Visual and Hr-Tag rumination time did n... Mostrar Tudo |
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Palavras-Chave: |
Chewing; Hr-Tag system; Precision livestock; Validation. |
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Thesaurus Nal: |
Behavior. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03087naa a2200313 a 4500
001 2110279
005 2023-01-24
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1016/j.livsci.2018.11.017$2DOI
100 1 $aRODRIGUES, J. P. P.
245 $aTechnical note$bEvaluation of an automatic system for monitoring rumination time in weaning calves.$h[electronic resource]
260 $c2019
520 $aRumination time is a relevant marker for health evaluation. The use of rumination monitoring systems can decrease labor costs when measuring rumination time. The objectives of this study were to: i) validate the Hr-Tag rumination monitoring system for estimating rumination time in Zebu calves during the weaning period and ii) to evaluate the Hr-Tag capacity to identify differences in daily rumination patterns during the weaning period. Thirty-two Gyr calves averaging 69 ± 7.6 kg body weight and 77.0 ± 4.0 days were used. Calves were fed 4.7 ± 0.5 L/day of whole milk and ad libitum commercial textured starter ration up to 83 days old (pre-weaning period). During the weaning period (84?86 days old) the same starter was used, but corn silage was also available and only half the milk dose was offered. After weaning (87?92 days old, post-weaning period) only corn silage and starter were used. For the Hr-Tag system validation, the rumination time obtained by Hr-Tag was compared with visual observations at four 2 h intervals (0600 to 0800, 0800 to 1000, 1400 to 1600, and 1600 to 1800 h) at pre- and post-weaning. Two observers were used in all visual evaluations. To compare daily rumination pattern at pre-weaning, weaning and post-weaning, only the Hr-Tag data was used. Rumination time values between observers were highly correlated (ρ = 0.956; P < 0.001). Visual and Hr-Tag rumination time did not follow a similar probability distribution (P < 0.001), but they were correlated (ρ = 0.702; P < 0.001). The Hr-Tag system overestimated rumination time, mainly when the calves had visual rumination activity close to or equal to zero. The Hr-Tag detected differences in rumination time between weaning periods (P < 0.05). In conclusion, the Hr-Tag system overestimates rumination time in weaning calves, mainly by recording nonexistent rumination. However, the Hr-Tag system recorded rumination values correlated to visual observations and detected differences in rumination activity among weaning periods.
650 $aBehavior
653 $aChewing
653 $aHr-Tag system
653 $aPrecision livestock
653 $aValidation
700 1 $aPEREIRA, L. G. R.
700 1 $aDINIZ NETO, H. do C.
700 1 $aLOMBARDI, M. C.
700 1 $aLAGE, C. F. de A.
700 1 $aCOELHO, S. G.
700 1 $aSACRAMENTO, J. P.
700 1 $aMACHADO, F. S.
700 1 $aTOMICH, T. R.
700 1 $aMAURÍCIO, R. M.
700 1 $aCAMPOS, M. M.
773 $tLivestock Science$gv. 219, p. 86-90, jan. 2019.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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| Registros recuperados : 36 | |
| 1. |  | SANTOS, D. S. dos; FARIAS, R. G. Alterações fisiológicas de bananeiras cultivadas em diferentes níveis de sombreamento. In: REUNIÃO ANUAL DE CIÊNCIA, TECNOLOGIA, INOVAÇÃO E CULTURA NO RECÔNCAVO DA BAHIA - RECONCITEC, 2., 2012, Cruz das Almas. Energias Renováveis, Educação, Tecnologia e Sociedade. Cruz das Almas, BA: UFRB, 2012. Apresentação em pôster.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 8. | | FARIAS, R. G.; SANTOS, D. S. dos; ROMANO, M. R.; SOARES FILHO, W. dos S. Avaliação de sobrevivência e desempenho de "SEEDLINGS" de Umbuzeiro ( Spondias tuberosa ) após dois períodos de incubação de substrato contendo farelo de mamona. CONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão, 2012. p. 268| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Algodão; Embrapa Mandioca e Fruticultura. |
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| 10. | | SANTOS, D. S. dos; ROCHA, M. J. S.; OLIVEIRA, M. I. B. de; CHAGAS, E. C. Levantamento de acantocefalose em tambaqui (Colossoma macropomum) criado em pisciculturas do município de Rio Preto da Eva, AM. In: JORNADA DE INICIAÇÃO CIENTIFICA DA EMBRAPA AMAZÔNIA OCIDENTAL, 13., 2016, Manaus. Anais... Brasília, DF: Embrapa, 2017. p. 77-78.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 14. | | SANTOS, D, S, dos; ROMANO, M. R.; CORDEIRO, Z. J. M. Fitomassa seca de híbridos de bananeira sob telas de sombreamento. In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 8., 2014, Cruz das Almas, Ba. Pesquisa: despertando mentes para a inovação e transformando o futuro: [anais]. Cruz das Almas, BA, Embrapa Mandioca e Fruticultura, 2014.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 15. | | SANTOS, D, S. dos; LIMA, J. do C.; CORDEIRO, Z. J. M. Crescimento de mudas de bananeiras cultivar Prata Anã Clone Gorutuba, submetidas ao uso de lixiviado de engaço. In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 9., 2015: Cruz das Almas, BA. Pesquisa: para quê? para quem? : resumos. Brasília, DF : Embrapa, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 19. | | TOMAZI, M.; SALTON, J. C.; RETORE, M.; BAYER, C.; SANTOS, D. S. dos. Mitigation of greenhouse gases with integrated crop. In: WORLD CONGRESS ON INTEGRATED CROP-LIVESTOCK-FOREST SYSTEMS; INTERNATIONAL SYMPOSIUM ON INTEGRATED CROP-LIVESTOCK SYSTEMS, 3., 2015, Brasília, DF. Towards sustainable intensification: proceedings. Brasília, DF: Embrapa, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| Registros recuperados : 36 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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