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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
19/12/2017 |
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Data da última atualização: |
19/12/2017 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
GUIMARAES, N. C.; CROZARA, A. S.; MAGNABOSCO, C. de U.; BRUNES, L. C.; QUEIROZ, L. C.; SANTOS, M. F. dos; NASCIMENTO, F. O.; LINS, C. R. de. |
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Afiliação: |
NAYANNY CORREA GUIMARAES, UFG; ADRIANO SANTANA CROZARA, UFG; CLAUDIO DE ULHOA MAGNABOSCO, CPAC; LUDMILLA COSTA BRUNES, UFG; LUIZ CANDIDO QUEIROZ, UFG; MARCELO FERNANDES DOS SANTOS, PUC-GO; FERNANDO OLIMPIO NASCIMENTO, UFG; CAROLINY ROCHA DE LINS, FACULDADES ARAGUAIA. |
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Título: |
Comparação de programas de acasalamento genético em bovinos da raça Nelore em características reprodutivas e stayability. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ZOOTECNIA, 27., 2017, Santos. Anais [eletrônicos]... Brasília, DF: Associação Brasileira de Zootecnistas, 2017. Zootec. |
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Idioma: |
Português |
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Conteúdo: |
RESUMO - Os programas de acasalamento convencionais tendem a não reduzir problemas de endogamia, pois trabalham apenas com a próxima geração e os touros candidatos não são bem distribuídos, o que nos sugere testar novas ferramentas. O objetivo do presente estudo foi comparar a utilização de dois programas de acasalamento genético (convencional e MaxPag) em bovinos da raça Nelore. Para comparação foi utilizado um rebanho com 420 matrizes e 25 touros pré-selecionados, utilizados em ambos os programas, assim como as exigência para todos os caracteres. Além da consaguinidade e MGC, as DEPs avaliadas foram D3P, DIPP e DSTAY. O MaxPag atendeu as exigências e reduziu o valor de consanguidade em 0,16%. Os valores de MGC e das DEPs avaliadas não foram comprometidos, inclusive superaram os valores médios do programa convencional, com exceção da DSTAY. Conclui-se que o MaxPag é eficaz para o controle da variabilidade genética e não afeta negativamente o mérito genético e as DEPs de D3P, DIPP e DSTAY. ABSTRACT - Conventional breeding programs tend not to reduce inbreeding problems by working only with the next generation, which suggests that we test new tools. The objective of this work was to compare the use of two genetic breeding programs in Nellore cattle. To compare were used 420 matrices and 25 bulls pre-selected for reproduction was used in both programs, as well as the same requirements for all traits desired in the progeny. Consanguinity values, genetic merit, probability prococious calving, age at first calving and stayability were evaluated. The MaxPag was able to satisfy all the requirements and, at the same time, reduced the value of inbreeding (0.16%). The values of genetic merit and EDPs have not been compromised, surpassing the values of the conventional program, except stayability. We can conclude that the use of MaxPag is effective for genetic variability in the selection programs and does't negatively affect the genetic merit and some reproduction EDPs. MenosRESUMO - Os programas de acasalamento convencionais tendem a não reduzir problemas de endogamia, pois trabalham apenas com a próxima geração e os touros candidatos não são bem distribuídos, o que nos sugere testar novas ferramentas. O objetivo do presente estudo foi comparar a utilização de dois programas de acasalamento genético (convencional e MaxPag) em bovinos da raça Nelore. Para comparação foi utilizado um rebanho com 420 matrizes e 25 touros pré-selecionados, utilizados em ambos os programas, assim como as exigência para todos os caracteres. Além da consaguinidade e MGC, as DEPs avaliadas foram D3P, DIPP e DSTAY. O MaxPag atendeu as exigências e reduziu o valor de consanguidade em 0,16%. Os valores de MGC e das DEPs avaliadas não foram comprometidos, inclusive superaram os valores médios do programa convencional, com exceção da DSTAY. Conclui-se que o MaxPag é eficaz para o controle da variabilidade genética e não afeta negativamente o mérito genético e as DEPs de D3P, DIPP e DSTAY. ABSTRACT - Conventional breeding programs tend not to reduce inbreeding problems by working only with the next generation, which suggests that we test new tools. The objective of this work was to compare the use of two genetic breeding programs in Nellore cattle. To compare were used 420 matrices and 25 bulls pre-selected for reproduction was used in both programs, as well as the same requirements for all traits desired in the progeny. Consanguinity values, genetic merit, probability proco... Mostrar Tudo |
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Thesagro: |
Acasalamento Controlado; Gado de Corte; Gado nelore; Melhoramento genético animal; Reprodução animal. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/169332/1/Comparacao-de-programas-de-acasalamento-genetico-em-bovinos-da-raca-Nelore-em-caracteristicas-reprodutivas-e-stayability..pdf
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Marc: |
LEADER 02940nam a2200253 a 4500
001 2082969
005 2017-12-19
008 2017 bl uuuu u00u1 u #d
100 1 $aGUIMARAES, N. C.
245 $aComparação de programas de acasalamento genético em bovinos da raça Nelore em características reprodutivas e stayability.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE ZOOTECNIA, 27., 2017, Santos. Anais [eletrônicos]... Brasília, DF: Associação Brasileira de Zootecnistas, 2017. Zootec.$c2017
520 $aRESUMO - Os programas de acasalamento convencionais tendem a não reduzir problemas de endogamia, pois trabalham apenas com a próxima geração e os touros candidatos não são bem distribuídos, o que nos sugere testar novas ferramentas. O objetivo do presente estudo foi comparar a utilização de dois programas de acasalamento genético (convencional e MaxPag) em bovinos da raça Nelore. Para comparação foi utilizado um rebanho com 420 matrizes e 25 touros pré-selecionados, utilizados em ambos os programas, assim como as exigência para todos os caracteres. Além da consaguinidade e MGC, as DEPs avaliadas foram D3P, DIPP e DSTAY. O MaxPag atendeu as exigências e reduziu o valor de consanguidade em 0,16%. Os valores de MGC e das DEPs avaliadas não foram comprometidos, inclusive superaram os valores médios do programa convencional, com exceção da DSTAY. Conclui-se que o MaxPag é eficaz para o controle da variabilidade genética e não afeta negativamente o mérito genético e as DEPs de D3P, DIPP e DSTAY. ABSTRACT - Conventional breeding programs tend not to reduce inbreeding problems by working only with the next generation, which suggests that we test new tools. The objective of this work was to compare the use of two genetic breeding programs in Nellore cattle. To compare were used 420 matrices and 25 bulls pre-selected for reproduction was used in both programs, as well as the same requirements for all traits desired in the progeny. Consanguinity values, genetic merit, probability prococious calving, age at first calving and stayability were evaluated. The MaxPag was able to satisfy all the requirements and, at the same time, reduced the value of inbreeding (0.16%). The values of genetic merit and EDPs have not been compromised, surpassing the values of the conventional program, except stayability. We can conclude that the use of MaxPag is effective for genetic variability in the selection programs and does't negatively affect the genetic merit and some reproduction EDPs.
650 $aAcasalamento Controlado
650 $aGado de Corte
650 $aGado nelore
650 $aMelhoramento genético animal
650 $aReprodução animal
700 1 $aCROZARA, A. S.
700 1 $aMAGNABOSCO, C. de U.
700 1 $aBRUNES, L. C.
700 1 $aQUEIROZ, L. C.
700 1 $aSANTOS, M. F. dos
700 1 $aNASCIMENTO, F. O.
700 1 $aLINS, C. R. de
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Registro original: |
Embrapa Cerrados (CPAC) |
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
11/12/2017 |
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Data da última atualização: |
11/12/2017 |
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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: |
COELHO, S. V. B.; ROSA, S. D. V. F. da; CLEMENTE, A. da C. S.; PEREIRA, C. C.; FIGUEIREDO, M. A. de; REIS, L. V. |
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Afiliação: |
STEFANIA VILAS BOAS COELHO, UFLA; STTELA DELLYZETE VEIGA F DA ROSA, SAPC; ALINE DA CONSOLAÇÃO SAMPAIO CLEMENTE, UFLA; CRISTIANE CARVALHO PEREIRA, UFLA; MADELEINE ALVES DE FIGUEIREDO, UFLA; LEANDRO VILELA REIS, UFLA. |
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Título: |
Tolerance of Coffea arabica L. seeds to sub zero temperatures. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Ciência e Agrotecnologia, v. 41, n. 3, p. 312-321, May/Jun. 2017. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Tolerância de sementes de Coffea arabica L. à temperaturas sub zero. |
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Conteúdo: |
Preservation of the quality of coffee seeds is hindered by their intermediate behavior in storage. However, long-term storage at sub zero temperatures may be achieved by adjusting the water content of the seeds. The aim of this study was to evaluate the tolerance of coffee seeds to freezing, in relation to physiological and enzymatic modifications. Coffee seeds were dried in two manners, rapid and slow, to water contents of interest, 0.67, 0.43, 0.25, 0.18, 0.11, and 0.05 g H2O g-¹ dw (dry basis). After drying, the seeds were stored at a temperature of -20 ºC and of 86 ºC for 24 hours and for 12 months, and then compared to seeds in cold storage at 10 ºC. The seeds were evaluated through calculation of percentage of normal seedlings, percentage of seedlings with expanded cotyledonary leaves, dry matter of roots and of hypocotyls, and viability of embryos in the tetrazolium test. Expression of the enzymes superoxide dismutase, catalase, and peroxidase were evaluated by means of electrophoretic analysis. Only seeds dried more slowly to 0.18 g H2O g-1 dw present relative tolerance to storing at -20 °C for 12 months. Coffee seeds do not tolerate storage at a temperature of -86 ºC for 12 months. Water contents below 0.11g H2O g-¹ dw and above 0.43 g H2O g-¹ dw hurt the physiological quality of coffee seeds, regardless of the type of drying, temperature, and storage period. Coffee seed embryos are more tolerant to desiccation and to freezing compared to whole seeds, especially when the seeds are dried to 0.05 g H2O g-¹ dw. The catalase enzyme can be used as a biochemical marker to study tolerance to freezing in coffee seeds. MenosPreservation of the quality of coffee seeds is hindered by their intermediate behavior in storage. However, long-term storage at sub zero temperatures may be achieved by adjusting the water content of the seeds. The aim of this study was to evaluate the tolerance of coffee seeds to freezing, in relation to physiological and enzymatic modifications. Coffee seeds were dried in two manners, rapid and slow, to water contents of interest, 0.67, 0.43, 0.25, 0.18, 0.11, and 0.05 g H2O g-¹ dw (dry basis). After drying, the seeds were stored at a temperature of -20 ºC and of 86 ºC for 24 hours and for 12 months, and then compared to seeds in cold storage at 10 ºC. The seeds were evaluated through calculation of percentage of normal seedlings, percentage of seedlings with expanded cotyledonary leaves, dry matter of roots and of hypocotyls, and viability of embryos in the tetrazolium test. Expression of the enzymes superoxide dismutase, catalase, and peroxidase were evaluated by means of electrophoretic analysis. Only seeds dried more slowly to 0.18 g H2O g-1 dw present relative tolerance to storing at -20 °C for 12 months. Coffee seeds do not tolerate storage at a temperature of -86 ºC for 12 months. Water contents below 0.11g H2O g-¹ dw and above 0.43 g H2O g-¹ dw hurt the physiological quality of coffee seeds, regardless of the type of drying, temperature, and storage period. Coffee seed embryos are more tolerant to desiccation and to freezing compared to whole seeds, especially whe... Mostrar Tudo |
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Palavras-Chave: |
Antioxidant enzymes; Enzima antioxidante; Saturated saline solutions; Solução salina saturada. |
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Thesagro: |
Congelamento; Secagem. |
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Thesaurus NAL: |
Drying; Freezing; Silica gel. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/168585/1/Tolerance-of-Coffea-arabica-L.-seeds.pdf
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Marc: |
LEADER 02600naa a2200301 a 4500
001 2082056
005 2017-12-11
008 2017 bl uuuu u00u1 u #d
100 1 $aCOELHO, S. V. B.
245 $aTolerance of Coffea arabica L. seeds to sub zero temperatures.$h[electronic resource]
260 $c2017
500 $aTítulo em português: Tolerância de sementes de Coffea arabica L. à temperaturas sub zero.
520 $aPreservation of the quality of coffee seeds is hindered by their intermediate behavior in storage. However, long-term storage at sub zero temperatures may be achieved by adjusting the water content of the seeds. The aim of this study was to evaluate the tolerance of coffee seeds to freezing, in relation to physiological and enzymatic modifications. Coffee seeds were dried in two manners, rapid and slow, to water contents of interest, 0.67, 0.43, 0.25, 0.18, 0.11, and 0.05 g H2O g-¹ dw (dry basis). After drying, the seeds were stored at a temperature of -20 ºC and of 86 ºC for 24 hours and for 12 months, and then compared to seeds in cold storage at 10 ºC. The seeds were evaluated through calculation of percentage of normal seedlings, percentage of seedlings with expanded cotyledonary leaves, dry matter of roots and of hypocotyls, and viability of embryos in the tetrazolium test. Expression of the enzymes superoxide dismutase, catalase, and peroxidase were evaluated by means of electrophoretic analysis. Only seeds dried more slowly to 0.18 g H2O g-1 dw present relative tolerance to storing at -20 °C for 12 months. Coffee seeds do not tolerate storage at a temperature of -86 ºC for 12 months. Water contents below 0.11g H2O g-¹ dw and above 0.43 g H2O g-¹ dw hurt the physiological quality of coffee seeds, regardless of the type of drying, temperature, and storage period. Coffee seed embryos are more tolerant to desiccation and to freezing compared to whole seeds, especially when the seeds are dried to 0.05 g H2O g-¹ dw. The catalase enzyme can be used as a biochemical marker to study tolerance to freezing in coffee seeds.
650 $aDrying
650 $aFreezing
650 $aSilica gel
650 $aCongelamento
650 $aSecagem
653 $aAntioxidant enzymes
653 $aEnzima antioxidante
653 $aSaturated saline solutions
653 $aSolução salina saturada
700 1 $aROSA, S. D. V. F. da
700 1 $aCLEMENTE, A. da C. S.
700 1 $aPEREIRA, C. C.
700 1 $aFIGUEIREDO, M. A. de
700 1 $aREIS, L. V.
773 $tCiência e Agrotecnologia$gv. 41, n. 3, p. 312-321, May/Jun. 2017.
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