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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
06/12/2021 |
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Data da última atualização: |
15/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GONÇALVES, A. A.; GARCIA, A. R.; ROLIM FILHO, S. T.; SILVA, J. A. R. DA; MELO, D. N. DE; GUIMARÃES, T. C.; TAVARES, H. R.; SILVA, T. V. G.; SOUZA, E. B. DE; SANTOS, S. DO S. D.; OHASHI, O. M. |
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Afiliação: |
ARNALDO ALGARANHAR GONÇALVES, Federal University of Pará; ALEXANDRE ROSSETTO GARCIA, CPPSE; SEBASTIÃO TAVARES ROLIM FILHO, Federal Rural University of Amazonia; JAMILE ANDRÉA RODRIGUES DA SILVA, Federal Rural University of Amazonia; DAYANA NEVES DE MELO, Federal Rural University of Amazonia; THIAGO CASTRO GUIMARÃES, Federal University of Pará; HÉLITON RIBEIRO TAVARES, Federal University of Pará; THIAGO VELASCO GUIMARÃES SILVA, Federal University of Pará; EDUARDO BAIA DE SOUZA, Federal University of Pará; SIMONE DO SOCORRO DAMASCENO SANTOS, Federal University of Pará; OTÁVIO MITIO OHASHI, Federal University of Pará. |
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Título: |
Scrotal thermoregulation and sequential sperm abnormalities in buffalo bulls (Bubalus bubalis) under short-term heat stress. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of Thermal Biology, v.96, feb. 2021, 102842. |
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Páginas: |
10 p. |
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DOI: |
https://doi.org/10.1016/j.jtherbio.2021.102842 |
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Idioma: |
Inglês |
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Conteúdo: |
Heat stress reduces the reproductive capacity of bulls raised in tropical climate. However, the reestablishment of scrotal thermoregulation and the dynamics of sperm defects emergence after stress are not completely known in buffaloes. Thus, the study aimed to evaluate the effect of short-term heat stress over scrotal thermoregulation and sperm attributes, relating them to spermatogenesis stages. Five buffalo bulls went through scrotal insulation during 48 h (from day 0 to day 2). Semen samples were collected every 7 days (from day - 7 to day 49) and progressive motility, viability, and sperm morphology. Heat stress significantly destabilized scrotal thermoregulation (P < 0.001). Scrotal temperature was from 4.2 to 6.3 C lower than the core body temperature, except on insulation days (P < 0.001), and returned to the basal condition five days after the removal of the stressing stimulus. More significant deleterious effects were observed in sperm morphology than in cell concentration, motility, and viability. The chronology of morphologic defects expression demonstrated tail defects (days 7?14), cytoplasmic droplets (days 14-28), and head defects (day 28), returning to pre-insulation condition 35 days after the thermal challenge. Thus, hyperthermia harmed more intensely spermatozoa in epididymal transit, elongated spermatids, and secondary spermatocytes. It is concluded that water buffalo bulls present a peculiar manifestation of sperm morphology after short-term stress, indicating an important difference related to the bovine species. Therefore, during the andrological evaluation of buffalo bulls, it is necessary to avoid the allometric extrapolation between these species. MenosHeat stress reduces the reproductive capacity of bulls raised in tropical climate. However, the reestablishment of scrotal thermoregulation and the dynamics of sperm defects emergence after stress are not completely known in buffaloes. Thus, the study aimed to evaluate the effect of short-term heat stress over scrotal thermoregulation and sperm attributes, relating them to spermatogenesis stages. Five buffalo bulls went through scrotal insulation during 48 h (from day 0 to day 2). Semen samples were collected every 7 days (from day - 7 to day 49) and progressive motility, viability, and sperm morphology. Heat stress significantly destabilized scrotal thermoregulation (P < 0.001). Scrotal temperature was from 4.2 to 6.3 C lower than the core body temperature, except on insulation days (P < 0.001), and returned to the basal condition five days after the removal of the stressing stimulus. More significant deleterious effects were observed in sperm morphology than in cell concentration, motility, and viability. The chronology of morphologic defects expression demonstrated tail defects (days 7?14), cytoplasmic droplets (days 14-28), and head defects (day 28), returning to pre-insulation condition 35 days after the thermal challenge. Thus, hyperthermia harmed more intensely spermatozoa in epididymal transit, elongated spermatids, and secondary spermatocytes. It is concluded that water buffalo bulls present a peculiar manifestation of sperm morphology after short-term stress, indic... Mostrar Tudo |
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Palavras-Chave: |
Sperm morphology; Spermiogram; Water buffalo. |
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Thesaurus Nal: |
Thermal stress; Thermoregulation. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02702naa a2200325 a 4500
001 2137118
005 2021-12-15
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jtherbio.2021.102842$2DOI
100 1 $aGONÇALVES, A. A.
245 $aScrotal thermoregulation and sequential sperm abnormalities in buffalo bulls (Bubalus bubalis) under short-term heat stress.$h[electronic resource]
260 $c2021
300 $a10 p.
520 $aHeat stress reduces the reproductive capacity of bulls raised in tropical climate. However, the reestablishment of scrotal thermoregulation and the dynamics of sperm defects emergence after stress are not completely known in buffaloes. Thus, the study aimed to evaluate the effect of short-term heat stress over scrotal thermoregulation and sperm attributes, relating them to spermatogenesis stages. Five buffalo bulls went through scrotal insulation during 48 h (from day 0 to day 2). Semen samples were collected every 7 days (from day - 7 to day 49) and progressive motility, viability, and sperm morphology. Heat stress significantly destabilized scrotal thermoregulation (P < 0.001). Scrotal temperature was from 4.2 to 6.3 C lower than the core body temperature, except on insulation days (P < 0.001), and returned to the basal condition five days after the removal of the stressing stimulus. More significant deleterious effects were observed in sperm morphology than in cell concentration, motility, and viability. The chronology of morphologic defects expression demonstrated tail defects (days 7?14), cytoplasmic droplets (days 14-28), and head defects (day 28), returning to pre-insulation condition 35 days after the thermal challenge. Thus, hyperthermia harmed more intensely spermatozoa in epididymal transit, elongated spermatids, and secondary spermatocytes. It is concluded that water buffalo bulls present a peculiar manifestation of sperm morphology after short-term stress, indicating an important difference related to the bovine species. Therefore, during the andrological evaluation of buffalo bulls, it is necessary to avoid the allometric extrapolation between these species.
650 $aThermal stress
650 $aThermoregulation
653 $aSperm morphology
653 $aSpermiogram
653 $aWater buffalo
700 1 $aGARCIA, A. R.
700 1 $aROLIM FILHO, S. T.
700 1 $aSILVA, J. A. R. DA
700 1 $aMELO, D. N. DE
700 1 $aGUIMARÃES, T. C.
700 1 $aTAVARES, H. R.
700 1 $aSILVA, T. V. G.
700 1 $aSOUZA, E. B. DE
700 1 $aSANTOS, S. DO S. D.
700 1 $aOHASHI, O. M.
773 $tJournal of Thermal Biology$gv.96, feb. 2021, 102842.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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| Registros recuperados : 18 | |
| 1. |  | ROCHA NETO, O. G.; MORAES, M. P. S.; MORAES, A. C. Respostas biofísicas de cupuaçuzeiros estabelecidos em consórcio com maracujá e submetidos a diferentes tipos de coberturas, durante o período chuvoso na região de Belém - Pará. In: CONGRESSO DE ECOLOGIA DO BRASIL, 4., 1998, Belém, PA. Ecossistemas: com enfoque em seus componentes básicos: resumos. Belém, PA: FCAP: Sociedade de Ecologia do Brasil, 1998. p. 372.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 2. | | LOURENÇO JUNIOR, J. de B.; SIMÃO NETO, M.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Liveweight gain of grazing water buffaloes supplemented with concentrates in Marajo Island, Brasil. Buffalo Journal, v. 4, n. 1, p. 11-19, 1998.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 4. | | CASTELO BRANCO, M. V. M.; LOURENÇO JUNIOR, J. de B.; MORAES, M. P. S.; GÓES, L. B. Características produtivas de búfalos em pastagem cultivada na ilha de Marajó. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA, 5., 1995, Belém, PA. Resumos... Belém, PA: FCAP, Unidade de Apoio à Pesquisa, 1995. p. 155.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 6. | | LOURENÇO JUNIOR, J. B.; SIMÃO NETO, M.; DUTRA, S.; MORAES, M. P. S.; LOURENÇO, A. V.; SILVA, J. A. R. Water buffalo milk production in Marajo Island, Brazil. Buffalo Journal, n. 1, p. 97-104, 1999. il.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 7. | | TEIXEIRA NETO, J. F.; LOURENÇO JUNIOR, J. de B.; COUTO, W. S.; CAMARAO, A. P.; MORAES, M. P. S. Proteína bruta e teores de minerais em Brachiaria humidicola na Ilha de Marajó, Pará, Brasil. Pasturas Tropicales, v. 21, n. 3, p. 49-53, 1999.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 9. | | LOURENÇO JUNIOR, J. de B.; SIMÃO NETO, M.; SÁ, T. D. de A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Índice de conforto térmico em bovídeos na Ilha de Marajó. In: CONGRESSO DE ECOLOGIA DO BRASIL, 4., 1998, Belém, PA. Ecossistemas: com enfoque em seus componentes básicos: resumos. Belém, PA: FCAP: Sociedade de Ecologia do Brasil, 1998. p. 41.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 10. | | LOURENÇO JUNIOR, J. de B.; SIMÃO NETO, M.; SÁ, T. D. A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Índice de temperatura umidade para bovídeos na Ilha de Marajó. In: CONGRESSO DE ECOLOGIA DO BRASIL, 4., 1998, Belém, PA. Ecossistemas: com enfoque em seus componentes básicos: resumos. Belém, PA: FCAP: Sociedade de Ecologia do Brasil, 1998. p. 42.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 11. | | LOURENÇO JUNIOR, J. B.; SIMÃO NETO, M.; SÁ, T. D. A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Influência de fatores climáticos sobre a fisiologia de bovídeos na Ilha de Marajó. In: CONGRESSO DE ECOLOGIA DO BRASIL, 4., 1998, Belém, PA. Ecossistema: com enfoque no contexto de seus componentes básicos: resumos. Belém, PA: FCAP: Sociedade de Ecologia do Brasil, 1998. p. 544.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 12. | | COSTA, N. A.; LOURENÇO JUNIOR, J. B.; CARVALHO, L. O. D. M.; SIMÃO NETO, M.; CAMARÃO, A. P.; MORAES, M. P. S. Buffalo meat production from grazing native and cultivated pastures in the Amazon region. Buffalo Journal, v. 16, n. 3, p. 259-275, 2000. il.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 13. | | LOURENÇO JUNIOR, J. B.; SIMÃO NETO, M.; SÁ, T. D. A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Climatic effects on the behaviour of cattle and water buffaloes in the Marajó island, Brazil. Buffalo Journal, v. 1, p. 37-52, 2001. il.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 14. | | LOURENÇO JUNIOR, J. de B.; SIMÃO NETO, M.; SÁ, T. D. A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Carcass characteristics and composition of cattle and water buffaloes raised on cultivated pasture ecosystem Marajo island, Brazil. Buffalo Journal, v. 16, n. 3, p. 277-285, 2000. il.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 15. | | LOURENÇO JUNIOR, J. de B.; SIMÃO NETO, M.; SÁ, T. D. A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Efeitos climáticos sobre o comportamento de bovídeos na Ilha de Marajó. In: CONGRESSO DE ECOLOGIA DO BRASIL, 4., 1998, Belém, PA. Ecossistemas: com enfoque em seus componentes básicos: resumos. Belém, PA: FCAP: Sociedade de Ecologia do Brasil, 1998. p. 41-42.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 17. | | LOURENÇO JUNIOR, J. B.; SIMÃO NETO, M.; SÁ, T. D. A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Produção de carne de bovídeos em ecossistema de pastagem cultivada da Ilha de Marajó. In: CONGRESSO DE ECOLOGIA DO BRASIL, 4., 1998, Belém, PA. Ecossistemas: com enfoque em seus componentes básicos: resumos. Belém, PA: FCAP: Sociedade de Ecologia do Brasil, 1998. p. 331.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 18. | | LOURENÇO JUNIOR, J. B.; SIMÃO NETO, M.; SÁ, T. D. A.; CAMARÃO, A. P.; LOURENÇO, A. V.; MORAES, M. P. S.; SILVA, J. A. R. Relationships between climatic factors and liveweight gains of water buffaloes and cattle in Marajo island, Brazil. Buffalo Journal, v. 16, n. 3, p. 287-302, 2000. il.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 18 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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