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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
30/11/2018 |
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Data da última atualização: |
30/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COSTA JUNIOR, N. B. da; BALDISSERA, T. C.; PINTO, C. E.; GARAGORRY, F. C.; MORAES, A. de; CARVALHO, P. C. de F. |
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Afiliação: |
Newton Borges da Costa Junior, EPAGRI; Tiago Celso Baldissera, EPAGRI; Cassiano Eduardo Pinto, EPAGRI; FABIO CERVO GARAGORRY, CPPSUL; Aníbal de Moraes, UFPR; Paulo César de Faccio Carvalho, UFRGS. |
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Título: |
Public policies for low carbon emission agriculture foster beef cattle production in southern Brazil. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Land Use Policy, v. 80, p. 269-273, Jan. 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
This study aims to evaluate the impact of two complementary public policies, one federal, Low Carbon Agriculture program (ABC), and one from Santa Catarina state, the cattle beef development program of Santa Catarina. By the official rural credit of the ABC program, the federal government aims the sustainability of beef cattle by production practices with potential mitigation of greenhouse gases (GHG). The Santa Catarina state program subsidizes federal program interest. In order to evaluate the impact of these public policies, it was evaluated 170 beef cattle farms in Santa Catarina. The evaluation consisted of visits and application of quantitative and qualitative forms. The farms were distributed in the regions of North plateau, Itajaí Valley, Mountain range, Midwest and West Santa Catarina. The evaluation period was from January 2012 to December 2016, covering the origin of the application of the resources, zootechnical indexes and economic analysis. It was found that 45% of ABC resources were used in pasture establishment and recovery, 18% in paddock subdivisions, 32% in adaptations of management centers and the remainder resources in animal genetic improvement and technical assistance. The evolution of the herd showed 21% increase in the number of animals (P=0.0016), 44% increase in the number of females (P < 0.001), and a slaughter age reduction in 12 months (P=0.0022). The relationship between the value of the projects and the value applied in pastures was positive linear (P < 0.001). There was improvement in knowledge on pasture management and on zootechnical indexes by the farmers after the five years of the programs implementation (P < 0.001). Farmers who joined the program reported unanimity regarding improvements in technical knowledge and management of the activity. It is concluded that public policies have had a positive impact in beef cattle production. Furthermore, the investment on production practices such pasture implantation and recovery, suitable pasture management, reduction on animals slaughter age presents potential to GHG mitigation. MenosThis study aims to evaluate the impact of two complementary public policies, one federal, Low Carbon Agriculture program (ABC), and one from Santa Catarina state, the cattle beef development program of Santa Catarina. By the official rural credit of the ABC program, the federal government aims the sustainability of beef cattle by production practices with potential mitigation of greenhouse gases (GHG). The Santa Catarina state program subsidizes federal program interest. In order to evaluate the impact of these public policies, it was evaluated 170 beef cattle farms in Santa Catarina. The evaluation consisted of visits and application of quantitative and qualitative forms. The farms were distributed in the regions of North plateau, Itajaí Valley, Mountain range, Midwest and West Santa Catarina. The evaluation period was from January 2012 to December 2016, covering the origin of the application of the resources, zootechnical indexes and economic analysis. It was found that 45% of ABC resources were used in pasture establishment and recovery, 18% in paddock subdivisions, 32% in adaptations of management centers and the remainder resources in animal genetic improvement and technical assistance. The evolution of the herd showed 21% increase in the number of animals (P=0.0016), 44% increase in the number of females (P < 0.001), and a slaughter age reduction in 12 months (P=0.0022). The relationship between the value of the projects and the value applied in pastures was positive l... Mostrar Tudo |
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Thesagro: |
Biogás; Bovino; Efeito Estufa; Pastagem. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02771naa a2200229 a 4500
001 2100515
005 2018-11-30
008 2018 bl uuuu u00u1 u #d
100 1 $aCOSTA JUNIOR, N. B. da
245 $aPublic policies for low carbon emission agriculture foster beef cattle production in southern Brazil.$h[electronic resource]
260 $c2018
520 $aThis study aims to evaluate the impact of two complementary public policies, one federal, Low Carbon Agriculture program (ABC), and one from Santa Catarina state, the cattle beef development program of Santa Catarina. By the official rural credit of the ABC program, the federal government aims the sustainability of beef cattle by production practices with potential mitigation of greenhouse gases (GHG). The Santa Catarina state program subsidizes federal program interest. In order to evaluate the impact of these public policies, it was evaluated 170 beef cattle farms in Santa Catarina. The evaluation consisted of visits and application of quantitative and qualitative forms. The farms were distributed in the regions of North plateau, Itajaí Valley, Mountain range, Midwest and West Santa Catarina. The evaluation period was from January 2012 to December 2016, covering the origin of the application of the resources, zootechnical indexes and economic analysis. It was found that 45% of ABC resources were used in pasture establishment and recovery, 18% in paddock subdivisions, 32% in adaptations of management centers and the remainder resources in animal genetic improvement and technical assistance. The evolution of the herd showed 21% increase in the number of animals (P=0.0016), 44% increase in the number of females (P < 0.001), and a slaughter age reduction in 12 months (P=0.0022). The relationship between the value of the projects and the value applied in pastures was positive linear (P < 0.001). There was improvement in knowledge on pasture management and on zootechnical indexes by the farmers after the five years of the programs implementation (P < 0.001). Farmers who joined the program reported unanimity regarding improvements in technical knowledge and management of the activity. It is concluded that public policies have had a positive impact in beef cattle production. Furthermore, the investment on production practices such pasture implantation and recovery, suitable pasture management, reduction on animals slaughter age presents potential to GHG mitigation.
650 $aBiogás
650 $aBovino
650 $aEfeito Estufa
650 $aPastagem
700 1 $aBALDISSERA, T. C.
700 1 $aPINTO, C. E.
700 1 $aGARAGORRY, F. C.
700 1 $aMORAES, A. de
700 1 $aCARVALHO, P. C. de F.
773 $tLand Use Policy$gv. 80, p. 269-273, Jan. 2019.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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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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Circulação/Nível: |
A - 2 |
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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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