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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
14/09/2018 |
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Data da última atualização: |
15/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ROMANELLO, N.; LOURENÇO JUNIOR, J. de B.; BARIONI JUNIOR, W.; BRANDÃO, F. Z.; MARCONDES, C. R.; PEZZOPANE, J. R. M.; PANTOJA, M. H. de A.; BOTTA, D.; GIRO, A.; MOURA, A. B. B.; BARRETO, A. do N.; GARCIA, A. R. |
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Afiliação: |
Narian Romanello, UFPA; José de Brito Lourenço Junior, UFPA; WALDOMIRO BARIONI JUNIOR, CPPSE; Felipe Zandonadi Brandão, UFF; CINTIA RIGHETTI MARCONDES, CPPSE; JOSE RICARDO MACEDO PEZZOPANE, CPPSE; Messy Hannear de Andrade Pantoja, UFPA; Daniela Botta, UFPA; Alessandro Giro, UFPA; Ana Beatriz Bossois Moura, UFF; Andréa do Nascimento Barreto, UFPA; ALEXANDRE ROSSETTO GARCIA, CPPSE. |
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Título: |
Thermoregulatory responses and reproductive traits in composite beef bulls raised in a tropical climate. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
International Journal of Biometeorology, v.62, p.1575-1586, 2018. |
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DOI: |
https://doi.org/10.1007/s00484-018-1557-8 |
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Idioma: |
Português |
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Conteúdo: |
It is believed that increased livestock production is limited by tropical climate. Thermal imbalance in bulls can lead to hyperthermia and alter testicularmetabolism, causing subfertility or infertility. Therefore, the thermoregulation of composite Canchim bulls (5/8 Charolais × 3/8 Zebu) raised in tropical climate as well as their consequences in the physiological, hematological, hormonal, and andrological parameters were evaluated monthly. The bulls (n = 18; 30.0 ± 1.5 months; 503.8 ± 23.0 kg) were kept on pasture, in a single group, from August 2015 to March 2016, comprising the winter, spring, and summer seasons. Biometeorological variables were continuously monitored, and the Temperature and Humidity Index (THI) was calculated. A greater thermal challenge occurred in spring and summer (THI ? 72.0). Nevertheless, the bulls exhibited normothermia (38.6 to 38.9 °C) in these seasons. The cortisol did not vary between seasons (7.0 vs. 8.7 vs. 6.8 ng/ mL; P > 0.05) and remained within the physiological patterns. Independent of the seasons, stress leukogram was also not observed, refuting the incidence of acute or chronic thermal stress. It is noteworthy that T3 and testosterone increased (P < 0.0001, P < 0.05) in spring and summer, the time that coincides with the breeding season, when there is increased metabolic requirement from the bulls. The progressive thermal challenge increase did not affect the scrotal thermoregulatory capacity, and in general, scrotal temperature remained at 5.2 °C below the internal body temperature. In summer, there was a 5% reduction in the minor sperm defects (P < 0.05) and DNA fragmentation in 2.4% of spermatozoa, a compatible value for high fertility bulls. The results show that the studied composite bulls can be considered as climatically adapted and constitute a viable alternative to be used in production systems in a tropical climate, even if the breeding seasons occur during the most critical thermal condition periods of the year. MenosIt is believed that increased livestock production is limited by tropical climate. Thermal imbalance in bulls can lead to hyperthermia and alter testicularmetabolism, causing subfertility or infertility. Therefore, the thermoregulation of composite Canchim bulls (5/8 Charolais × 3/8 Zebu) raised in tropical climate as well as their consequences in the physiological, hematological, hormonal, and andrological parameters were evaluated monthly. The bulls (n = 18; 30.0 ± 1.5 months; 503.8 ± 23.0 kg) were kept on pasture, in a single group, from August 2015 to March 2016, comprising the winter, spring, and summer seasons. Biometeorological variables were continuously monitored, and the Temperature and Humidity Index (THI) was calculated. A greater thermal challenge occurred in spring and summer (THI ? 72.0). Nevertheless, the bulls exhibited normothermia (38.6 to 38.9 °C) in these seasons. The cortisol did not vary between seasons (7.0 vs. 8.7 vs. 6.8 ng/ mL; P > 0.05) and remained within the physiological patterns. Independent of the seasons, stress leukogram was also not observed, refuting the incidence of acute or chronic thermal stress. It is noteworthy that T3 and testosterone increased (P < 0.0001, P < 0.05) in spring and summer, the time that coincides with the breeding season, when there is increased metabolic requirement from the bulls. The progressive thermal challenge increase did not affect the scrotal thermoregulatory capacity, and in general, scrotal temperature rem... Mostrar Tudo |
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Palavras-Chave: |
Homeothermy; Infrared thermography; Semen quality; Tropical livestock. |
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Thesagro: |
Sêmen. |
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Thesaurus Nal: |
Animal welfare; Thermoregulation. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 03072naa a2200349 a 4500
001 2095682
005 2023-12-15
008 2018 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s00484-018-1557-8$2DOI
100 1 $aROMANELLO, N.
245 $aThermoregulatory responses and reproductive traits in composite beef bulls raised in a tropical climate.$h[electronic resource]
260 $c2018
520 $aIt is believed that increased livestock production is limited by tropical climate. Thermal imbalance in bulls can lead to hyperthermia and alter testicularmetabolism, causing subfertility or infertility. Therefore, the thermoregulation of composite Canchim bulls (5/8 Charolais × 3/8 Zebu) raised in tropical climate as well as their consequences in the physiological, hematological, hormonal, and andrological parameters were evaluated monthly. The bulls (n = 18; 30.0 ± 1.5 months; 503.8 ± 23.0 kg) were kept on pasture, in a single group, from August 2015 to March 2016, comprising the winter, spring, and summer seasons. Biometeorological variables were continuously monitored, and the Temperature and Humidity Index (THI) was calculated. A greater thermal challenge occurred in spring and summer (THI ? 72.0). Nevertheless, the bulls exhibited normothermia (38.6 to 38.9 °C) in these seasons. The cortisol did not vary between seasons (7.0 vs. 8.7 vs. 6.8 ng/ mL; P > 0.05) and remained within the physiological patterns. Independent of the seasons, stress leukogram was also not observed, refuting the incidence of acute or chronic thermal stress. It is noteworthy that T3 and testosterone increased (P < 0.0001, P < 0.05) in spring and summer, the time that coincides with the breeding season, when there is increased metabolic requirement from the bulls. The progressive thermal challenge increase did not affect the scrotal thermoregulatory capacity, and in general, scrotal temperature remained at 5.2 °C below the internal body temperature. In summer, there was a 5% reduction in the minor sperm defects (P < 0.05) and DNA fragmentation in 2.4% of spermatozoa, a compatible value for high fertility bulls. The results show that the studied composite bulls can be considered as climatically adapted and constitute a viable alternative to be used in production systems in a tropical climate, even if the breeding seasons occur during the most critical thermal condition periods of the year.
650 $aAnimal welfare
650 $aThermoregulation
650 $aSêmen
653 $aHomeothermy
653 $aInfrared thermography
653 $aSemen quality
653 $aTropical livestock
700 1 $aLOURENÇO JUNIOR, J. de B.
700 1 $aBARIONI JUNIOR, W.
700 1 $aBRANDÃO, F. Z.
700 1 $aMARCONDES, C. R.
700 1 $aPEZZOPANE, J. R. M.
700 1 $aPANTOJA, M. H. de A.
700 1 $aBOTTA, D.
700 1 $aGIRO, A.
700 1 $aMOURA, A. B. B.
700 1 $aBARRETO, A. do N.
700 1 $aGARCIA, A. R.
773 $tInternational Journal of Biometeorology$gv.62, p.1575-1586, 2018.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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| Registros recuperados : 11 | |
| 2. |  | CARVALHEIRA, L. de R.; WENCESLAU, R. R.; RIBEIRO, L. dos S.; CARVALHO, B. C. de; BORGES, A. M.; CAMARGO, L. S. de A. Daily vaginal temperature in Girolando cows from three different genetic composition under natural heat stress. Translational Animal Science, v. 5, n. 3, txab138, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 3. | | TEIXEIRA, T. A.; FONSECA, J. F. da; SOUZA-FABJAN, J. M. G. de; CARVALHEIRA, L. de R.; FERNANDES, D. A. de M.; BRANDÃO, F. Z. Efficiency of different hormonal treatments for estrus synchronization in tropical Santa Inês sheep. Tropical Animal Health and Production, Heidelberg, v. 48, n. 3, p. 545-551, Mar. 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 4. | | SOUZA, E. D. de; BATISTA, R. I. T. P.; NETTO, P. M. O.; QUINTAO, C. C. R.; LOURO, I. D.; CAMARGO, L. S. de A.; CARVALHEIRA, L. de R. Inhibition of HSP90 associated to heat shock during in vitro maturation of bovine oocytes alters the relative amount of transcripts in 8-cell stage embryos. In: ANNUAL MEETING OF THE BRAZILIAN EMBRYO TECNNOLOGY SOCIETY, 14., 2017, Cabo de Santo Agostinho. Proceedings... Cabo de Santo Agostinho: SBTE, 2017. p. 882.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 5. | | SOUZA, E. D. de; SOUZA, J. F. da S. e; OLIVEIRA NETTO, P. M. de; CARVALHEIRA, L. de R.; BATISTA, R. I. T. P.; QUINTAO, C. C. R.; LOURO, I. D.; CAMARGO, L. S. de A. Inhibition of Hsp90 during in vitro maturation under thermoneutral or heat shock conditions compromises the developmental competence of bovine oocytes. Zygote, v. 30, n. 6, p. 854-862, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 6. | | RIBEIRO, L. dos S.; BRANDÃO, F. Z.; CARVALHEIRA, L. de R.; GOES, T. J. de F.; TORRES FILHO, R. de A.; QUINTAO, C. C. R.; PIRES, M. de F. A.; CAMARGO, L. S. de A.; CARVALHO, B. C. de. Chromium supplementation improves glucose metabolism and vaginal temperature regulation in Girolando cows under heat stress conditions in a climatic chamber. Tropical Animal Health and Production, v. 52, p. 1661-1668, 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 7. | | RIBEIRO, L. dos S.; BRANDÃO, F. Z.; CARVALHEIRA, L. de R.; LEMOS, D. R. de; SOUZA, G. T. de; BATISTA, R. I. T. P.; CAMARGO, L. S. de A.; CARVALHO, B. C. de. Chromium supplementation modulates glucose metabolism in heatstressed Girolando dairy cows. Semina: Ciências Agrárias, v. 41, n. 5, p. 2445-2452, 2020. Short communications.| Tipo: Nota Técnica/Nota Científica |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 8. | | FABJAN, J. M. G. de S.; BALARO, M. F. A.; BARBOSA, T. G. B.; FONSECA, J. F. da; FIGUEIRA. L. M.; TEXEIRA, T. A.; CARVALHEIRA. L. de R.; BRANDÃO, F. Z. Potencial do GnRH em sincronizar a emergência folicular e ovulação em protocolo superovulatório "dia 0" em ovinos. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 29., 2015, Gramado. Anais... [S.l.]: SBTE, 2015. p. 352.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 9. | | GUIMARÃES, C. R.; AZEVEDO, R. A. de; CAMPOS, M. M.; MACHADO, F. S.; PEDROSO, A. M.; CARVALHEIRA, L. de R.; TOMICH, T. R.; PEREIRA, L. G. R.; COELHO, S. G. Reduction of crude protein in diets fed to lactating Holstein-Gyr cows. Pesquisa Agropecuária Brasileira, v. 53, n. 7, p. 858-865, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Gado de Leite; Embrapa Unidades Centrais. |
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| 10. | | CARVALHEIRA, L. de R.; SANTOS, G. B. dos; JASMIM; GUIMARÃES, C. R.; CAMPOS, M. M.; MACHADO, F. S.; PEDROSO, A. M.; SILVA, T. E. da; NOGUEIRA, L. A. G.; RODRIGUES, A. L. R.; CARVALHO, B. C. de. Diet crude protein reduction on follicular fluid and cumulus-oocyte complexes of mid-lactating Girolando cows. Animal Reproduction, v. 19, n. 3, e20210088, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 11. | | CARVALHEIRA, L. de R.; SANTOS, G. B. dos; GUIMARÃES, C. R.; RODRIGUES, A. L. R.; MACHADO, F. S.; CAMPOS, M. M.; VARGAS, M. W.; NOGUEIRA, L. A. G.; CARVALHO, B. C. de. Efeito de diferentes níveis de proteína degradável e não degradável no rúmen sobre a concentração de nitrogênio ureico no plasma, fluido folicular e vialibildade de oócitos em vacas Girolando (Bos taurus taurus x Bos taurus indicus) em lactação In: CONGRESSO BRASILEIRO DE REPRODUÇÃO ANIMAL, 21., 2015, Belo Horizonte. Anais... Belo Horizonte: CBRA, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 11 | |
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