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| Registros recuperados : 12 | |
| 2. |  | PANTOJA, M. H. de A.; MOURA, A. B. B.; ROMANELLO, N.; ESTEVES, S. N.; BARIONI JUNIOR, W.; GARCIA, A. R. Termorregulação de ovinos naturalizados ou exóticos avaliada por termometria de infravermelho em duas estações do ano. In: CONGRESSO DE ZOOTECNIA DE PRECISÃO, 1., 2016, Florianópolis, SC. Anais... Florianópolis, SC: STCAS, 2016. p. 1-7.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 3. | | MOURA, A. B. B.; PANTOJA, M. H. A.; ROMANELLO, N.; LEMES, A. P.; ESTEVES, S. N.; FONSECA, J. F. da; BRANDÃO, F. Z.; GARCIA, A. R. Correlations between testicular surface temperatures measured by infrared thermography and seminal parameters in rams of distinct genotypic groups. Animal Reproduction, v. 13, n. 3, p. 560, Jul./Sept. 2016. Proceedings of the 30th Annual Meeting of the Brazilian Embryo Technology Society (SBTE); Foz do Iguaçu, PR, Brazil, August 25th to 27th, 2016, and 32nd Meeting of the European Embryo Transfer Association (AETE); Barcelona, Spain,...| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 4. | | ROMANELLO, N.; BOTTA, D.; MOURA, A. B. B.; PANTOJA, M. H. de A.; BARRETO, A. do N.; SOUZA, M. A. de P.; VOLANTE, C. A.; GARCIA, A. R. Effect of GnRH on scrotal surface temperature, testicular volume and spern parameters of bulls with poor semen quality. Animal Reproduction, v.15, n.3, p.459, jul./sept. 2018. Edição dos Proceedings of the 32nd Annual Meeting of the Brazilian Embryo Technology Society (SBTE).| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 5. | | MOURA, A. B. B.; BRANDÃO, F. Z.; ESTEVES, S. N.; SOUZA, G. N. de; FONSECA, J. F. da; PANTOJA, M. H. A.; ROMANELLO, N.; BOTTA, D.; GIRO, A.; GARCIA, A. R. Differences in the thermal sensitivity and seminal quality of distinct ovine genotypes raised in tropical conditions. Theriogenology, v.123, p.123-131, 2019.| Biblioteca(s): Embrapa Caprinos e Ovinos; Embrapa Gado de Leite; Embrapa Pecuária Sudeste. |
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| 6. | | ALMEIDA, J. T. B. de; BARIONI JUNIOR, W.; MOURA, A. B. B.; PANTOJA, M. H. de A.; ROMANELLO, N.; BOTTA, D.; GIRO, A.; BARRETO, A. do N.; GARCIA, A. R. Modelos matemáticos para predição da temperatura interna de reprodutores ovinos, com base no uso da termografia por infravermelho. In: JORNADA CIENTÍFICA DA EMBRAPA SÃO CARLOS, 10., 2018, São Carlos, SP. Anais... São Carlos, SP: Embrapa Instrumentação; Embrapa Pecuária Sudeste, 2018. p. 13. (Embrapa Instrumentação. Documentos, 68). Editores Técnicos: Daniel Souza Corrêa, Elaine Cristina Paris, Maria Alice Martins, Paulino Ribeiro Villas Boas, Wilson Tadeu Lopes da Silva.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 7. | | GARCIA, A. R.; MOURA, A. B. B.; ROMANELLO, N.; FONSECA, J. F. da; BRANDÃO, F. Z.; PANTOJA, M. H. de A.; BARRETO, A. do N.; SOUSA, M. A. de P.; BOTTA, D.; GIRO, A. Osmolaridade ideal para execução do teste hiposmótico no sêmen in natura de ovinos (Ovis aries). In: REUNIÃO ANUAL DA ASSOCIAÇÃO BRASILEIRA DE ANDROLOGIA ANIMAL (ABRAA), 4., 2019, Goiânia. Anais... Goiânia: Editora UFMS, 2019. p.160-163. 7 e 8 de junho de 2019.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 8. | | LEMES, A. P.; GIMENES, L. U.; ESTEVES, S. N.; PEDROSO, A. de F.; PEZZOPANE, J. R. M.; MARCONDES, C. R.; GUILARDI, J. H.; MOURA, A. B. B.; PANTOJA, M. H. A.; GARCIA, A. R. Performance, thermal confort and ovarian phisiology of canchim (Bos indicus vs Bos taurus) heifers grazing pastures with and without natural shade: preliminary results. Animal Reproduction, v. 13, n. 3, p. 542, Jul./Sep. 2016.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 9. | | ROMANELLO, N.; MOURA, A. B. B.; PANTOJA, M. H. de A.; PEREIRA, V. S. do A.; GIRO, A.; BOTTA, D.; MIGUEL, M. C. V.; MARCONDES, C. R.; LOURENÇO JUNIOR, J. de B.; GARCIA, A. R. Scrotal temperature patterns and seminal quality of composite bulls during winter and summer. In: ANNUAL MEETING OF THE BRAZILIAN EMBRYO TECHNOLOGY SOCIETY, 30., 2016, Foz do Iguaçu, PR. Proceedings... Foz do Iguaçu, PR: Animal Reproduction, 2016. p. 559.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 10. | | ALMEIDA, S. F. de C. M. de; SOUZA-FABJAN, J. M. G.; BALARO, M. F. A.; BRAGANÇA, G. M.; PINTO, P. H. N.; ALMEIDA, J. G. de; MOURA, A. B. B.; FONSECA, J. F. da; BRANDÃO, F. Z. Use of two doses of cloprostenol in different intervals for estrus synchronization in hair sheep under tropical conditions. Tropical Animal Health and Production, Edinburgh, v. 50, n. 2, p. 427-432, Feb. 2018.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 11. | | 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. Thermoregulatory responses and reproductive traits in composite beef bulls raised in a tropical climate. International Journal of Biometeorology, v.62, p.1575-1586, 2018.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 12. | | PANTOJA, M. H. de A.; ESTEVES, S. N.; JACINTO, M. A. C.; PEZZOPANE, J. R. M.; PAZ, C. C. P. de; SILVA, J. A. R. da; LOURENÇO JUNIOR, J. de B.; BRANDAO, F. Z.; MOURA, A. B. B.; ROMANELLO, N.; BOTTA, D.; GARCIA, A. R. Thermoregulation of male sheep of indigenous or exotic breeds in a tropical environment. Journal of Thermal Biology, v. 69, p. 302-310, 2017.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| Registros recuperados : 12 | |
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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. |
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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Circulação/Nível: |
A - 2 |
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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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