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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
11/11/2021 |
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Data da última atualização: |
11/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CARVALHEIRA, L. de R.; WENCESLAU, R. R.; RIBEIRO, L. dos S.; CARVALHO, B. C. de; BORGES, A. M.; CAMARGO, L. S. de A. |
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Afiliação: |
LUCIANO DE REZENDE CARVALHEIRA, Universidade Federal de Minas Gerais; RAPHAEL ROCHA WENCESLAU, Universidade Federal de Minas Gerais; LILIAN DOS SANTOS RIBEIRO, Universidade Federal Fluminense; BRUNO CAMPOS DE CARVALHO, CNPGL; ÁLAN MAIA BORGES, Universidade Federal de Minas Gerais; LUIZ SERGIO DE ALMEIDA CAMARGO, CNPGL. |
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Título: |
Daily vaginal temperature in Girolando cows from three different genetic composition under natural heat stress. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Translational Animal Science, v. 5, n. 3, txab138, 2021. |
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DOI: |
https://doi.org/10.1093/tas/txab138 |
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Idioma: |
Inglês |
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Conteúdo: |
The present trial evaluated the effect of crossbred composition and Temperature and Humidity Index (THI) on vaginal temperature (VT) of Girolando dairy cows maintained under tropical pasture during warm seasons. The VT was monitored along 41 to 96 h in 615 Girolando cows with different Holstein (H) × Gir genetic composition (1/2 H = 284, 3/4 H = 248, and 7/8 H = 83) from six Brazilian farms in the summer of 2016 and 2017. VT of each cow at each hour of the day and the respective THI were averaged per hour across all monitoring days to generate an averaged value for VT and THI during 24 h. A linear mixed model with repeated measures using restricted maximum likelihood (REML) method for (co)variance components estimation procedure was employed. The final model adjusted the VT for the effects of cow, time, THI, farm, year, pregnancy status, body condition score (BCS), milk yield, genetic composition, and genetic composition*time interaction. Fixed effects were evaluated by ANOVA and tested with Tukey test in R software version 3.6.1 (R Core Team, 2019). Overall mean of VT, air temperature (AT), and THI were 39.06 ± 0.52 °C, 25.63 ± 0.40 °C, and 75.06 ± 3.96, respectively. VT had moderate positive correlation with THI (r² = 0.45, P < 0.001) and AT (r² = 0.46, P < 0.001). The VT had estimated linear increase of 0.05 °C for each THI unit increase (P < 0.001). Least square mean of VT varied among the farms (P < 0.001), pregnancy status (P < 0.001), and BCS (P < 0.05) but not for Milk yield (P > 0.05). The daily average VT was affected by genetic composition (P < 0.001) with highest temperature for 3/4 H (39.08 ± 0.06 °C a) and 7/8 H (39.09 ± 0.06 °C a) and lowest temperature for 1/2 H (38.95 ± 0.06 °C b). The difference of VT among the three crossbred groups varied in function of the time of the day, from 12:00 to 20:00 h (P < 0.001), with 3/4 Holstein and 7/8 Holstein cows reaching similar VT, above to the upper limit 39.1 °C and higher than 1/2 Holstein cows during all this period. In conclusion, Girolando cows are sensitive to heat stress in tropical condition during warm seasons. Moreover, Girolando cows with genetic composition higher than 3/4 Holstein display reduced thermoregulatory efficiency. Therefore, Girolando cows in tropical dairy farms require strategies to mitigate heat stress according to their genetic composition. MenosThe present trial evaluated the effect of crossbred composition and Temperature and Humidity Index (THI) on vaginal temperature (VT) of Girolando dairy cows maintained under tropical pasture during warm seasons. The VT was monitored along 41 to 96 h in 615 Girolando cows with different Holstein (H) × Gir genetic composition (1/2 H = 284, 3/4 H = 248, and 7/8 H = 83) from six Brazilian farms in the summer of 2016 and 2017. VT of each cow at each hour of the day and the respective THI were averaged per hour across all monitoring days to generate an averaged value for VT and THI during 24 h. A linear mixed model with repeated measures using restricted maximum likelihood (REML) method for (co)variance components estimation procedure was employed. The final model adjusted the VT for the effects of cow, time, THI, farm, year, pregnancy status, body condition score (BCS), milk yield, genetic composition, and genetic composition*time interaction. Fixed effects were evaluated by ANOVA and tested with Tukey test in R software version 3.6.1 (R Core Team, 2019). Overall mean of VT, air temperature (AT), and THI were 39.06 ± 0.52 °C, 25.63 ± 0.40 °C, and 75.06 ± 3.96, respectively. VT had moderate positive correlation with THI (r² = 0.45, P < 0.001) and AT (r² = 0.46, P < 0.001). The VT had estimated linear increase of 0.05 °C for each THI unit increase (P < 0.001). Least square mean of VT varied among the farms (P < 0.001), pregnancy status (P < 0.001), and BCS (P < 0.05) but not for Mi... Mostrar Tudo |
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Palavras-Chave: |
Temperatura corporal; Tropical environment. |
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Thesagro: |
Bovino; Cruzamento; Pastagem; Vaca Leiteira. |
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Thesaurus Nal: |
Dairy cows; Grazing; Pastures. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/227660/1/Daily-vaginal.pdf
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Marc: |
LEADER 03304naa a2200301 a 4500
001 2136039
005 2021-11-11
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1093/tas/txab138$2DOI
100 1 $aCARVALHEIRA, L. de R.
245 $aDaily vaginal temperature in Girolando cows from three different genetic composition under natural heat stress.$h[electronic resource]
260 $c2021
520 $aThe present trial evaluated the effect of crossbred composition and Temperature and Humidity Index (THI) on vaginal temperature (VT) of Girolando dairy cows maintained under tropical pasture during warm seasons. The VT was monitored along 41 to 96 h in 615 Girolando cows with different Holstein (H) × Gir genetic composition (1/2 H = 284, 3/4 H = 248, and 7/8 H = 83) from six Brazilian farms in the summer of 2016 and 2017. VT of each cow at each hour of the day and the respective THI were averaged per hour across all monitoring days to generate an averaged value for VT and THI during 24 h. A linear mixed model with repeated measures using restricted maximum likelihood (REML) method for (co)variance components estimation procedure was employed. The final model adjusted the VT for the effects of cow, time, THI, farm, year, pregnancy status, body condition score (BCS), milk yield, genetic composition, and genetic composition*time interaction. Fixed effects were evaluated by ANOVA and tested with Tukey test in R software version 3.6.1 (R Core Team, 2019). Overall mean of VT, air temperature (AT), and THI were 39.06 ± 0.52 °C, 25.63 ± 0.40 °C, and 75.06 ± 3.96, respectively. VT had moderate positive correlation with THI (r² = 0.45, P < 0.001) and AT (r² = 0.46, P < 0.001). The VT had estimated linear increase of 0.05 °C for each THI unit increase (P < 0.001). Least square mean of VT varied among the farms (P < 0.001), pregnancy status (P < 0.001), and BCS (P < 0.05) but not for Milk yield (P > 0.05). The daily average VT was affected by genetic composition (P < 0.001) with highest temperature for 3/4 H (39.08 ± 0.06 °C a) and 7/8 H (39.09 ± 0.06 °C a) and lowest temperature for 1/2 H (38.95 ± 0.06 °C b). The difference of VT among the three crossbred groups varied in function of the time of the day, from 12:00 to 20:00 h (P < 0.001), with 3/4 Holstein and 7/8 Holstein cows reaching similar VT, above to the upper limit 39.1 °C and higher than 1/2 Holstein cows during all this period. In conclusion, Girolando cows are sensitive to heat stress in tropical condition during warm seasons. Moreover, Girolando cows with genetic composition higher than 3/4 Holstein display reduced thermoregulatory efficiency. Therefore, Girolando cows in tropical dairy farms require strategies to mitigate heat stress according to their genetic composition.
650 $aDairy cows
650 $aGrazing
650 $aPastures
650 $aBovino
650 $aCruzamento
650 $aPastagem
650 $aVaca Leiteira
653 $aTemperatura corporal
653 $aTropical environment
700 1 $aWENCESLAU, R. R.
700 1 $aRIBEIRO, L. dos S.
700 1 $aCARVALHO, B. C. de
700 1 $aBORGES, A. M.
700 1 $aCAMARGO, L. S. de A.
773 $tTranslational Animal Science$gv. 5, n. 3, txab138, 2021.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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| Registros recuperados : 132 | |
| 1. |  | CARVALHO, B. C. de. Leite 4.0. Balde Branco, v. 55, n. 658, p. 24-25, 2019.| Tipo: Artigo de Divulgação na Mídia |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 5. | | CAMPOS, M. M.; MACHADO, F. S.; PEREIRA, L. G. R.; CARVALHO, B. C. de. Eficiência alimentar: ferramenta para aumento de bioeficiencia em gado de leite. In: FERNANDES, E. N.; MARTINS, C. E.; NOBRE, M. M.; NOVAES, E.; LOPES, F. C. F.; MENDONCA, L. C.; PEREIRA, L. G. R.; MACHADO, M. A.; TEIXEIRA, S. R.; TALONE, A.; SILVA, F. H.; FIORINI, J. P.; MARTINS, M. C. (ed.). Desafios para a sustentabilidade ambiental, social e econômica da cadeia produtiva do leite. Juiz de Fora: Embrapa Gado de Leite, 2012. p. 145-159.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 7. | | MACHADO, F. S.; PEREIRA, L. G. R.; CAMPOS, M. M.; CARVALHO, B. C. de. Exigências nutricionais de bovinos leiteiros para produção sustentável nos trópicos. In: PEREIRA, L. G. R.; NOBRE, M. M.; NEVES, A. L. A.; CAMPOS, M. M.; MENDONCA, L. C.; GOMIDE, C. A. de M.; SANTOS, G. G. dos; SIQUEIRA, K. B. (Ed.). Pesquisa, desenvolvimento e inovação para a sustentabilidade da bovinocultura leiteira. Juiz de Fora: Embrapa Gado de Leite, 2011. p. 173-187.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 13. | | COELHO, M. C.; DAMASCENO, M. D.; MORENO, A. M.; DORNELES, E.; GUIMARÃES, A. S.; CARVALHO, B. C. de. Avaliação da prevalência de endometrite citológica no pós-parto de vacas leiteiras alojadas em sistemas Compost barn (resultados preliminares). In: WORKSHOP DE INICIAÇÃO CIENTÍFICA DA EMBRAPA GADO DE LEITE, 28., 2023, Juiz de Fora. Anais... Juiz de Fora: Embrapa Gado de Leite, 2024. p. 13-18. (Embrapa Gado de Leite. Eventos Técnicos & Científicos, 1). Pibic/Fapemig.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 17. | | ANJOS, J. L. dos; SOBRAL, L. F.; CARVALHO, H. W. L. de; OLIVEIRA, I. R. de; CARVALHO, B. C. de. Nitrogênio e fósforo na produção de girassol em solos dos tabuleiros costeiros. In: REUNIÃO NACIONAL DE PESQUISA DO GIRASSOL, 18., SIMPÓSIO NACIONAL SOBRE A CULTURA DO GIRASSOL, 6., 2009. Pelotas. Anais... Pelotas: Embrapa Clima Temperado, 2009. 388 p. Editado por Ana Claudia Barneche de Oliveira, Ana Paula Afonso Scheneid da Rosa e Márcia Vizzotto. p. 149-153. Artigo em anais.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 19. | | SANTOS, G. B.; BRANDÃO, F. Z.; CARVALHO, B. C. de; MACHADO, F. S.; VARAGO, F. C.; VARGAS, M. W. População folicular e produção de oócitos em vacas primíparas 3/4 e 7/8 Holandês x Gir no pós-parto. CONGRESSO BRASILEIRO DE REPRODUÇÃO ANIMAL, 20., 2013, Uberlandia. Anais... Belo Horizonte: CBRA, 2013. p. 187.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 20. | | SANTOS, G. B.; CARVALHO, B. C. de; VARGAS, M. W.; MACHADO, F. S.; PIRES, M. de F. A.; VARAGO, F. C.; ALVES, B. R. C.; CAMPOS, M. M. Avaliação automatizada do comportamento ingestivo de vacas da raça Holandês com metrite. In: CONGRESSO INTERNACIONAL DO LEITE, 13., 2015, Porto Alegre. Anais... Juiz de Fora: Embrapa Gado de Leite, 2015. 4 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 132 | |
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