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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
19/08/2013 |
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Data da última atualização: |
16/05/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
ROSA, A. do N.; MENEZES, G. R. de O.; SILVA, L. O. C. da; TULLIO, R. R.; FEIJO, G. L. D.; ALENCAR, M. M. de. |
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Afiliação: |
ANTONIO DO NASCIMENTO ROSA, CNPGC; GILBERTO ROMEIRO DE OLIVEIRA MENEZE, CNPGC; LUIZ OTAVIO CAMPOS DA SILVA, CNPGC; RYMER RAMIZ TULLIO, CPPSE; GELSON LUIS DIAS FEIJO, CNPGC; MAURICIO MELLO DE ALENCAR, CPPSE. |
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Título: |
Parâmetros genéticos de características de carcaça e maciez da carne em uma população experimental da raça Nelore. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE MELHORAMENTO ANIMAL, 10., 2013, Uberaba. Anais... Belo Horizonte: SBMA, 2013. |
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Páginas: |
3 p. |
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Idioma: |
Português |
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Conteúdo: |
Com o objetivo de avaliar a variabilidade genética da maciez da carne e de características de carcaça, foram analisados dados de abate de 811 animais Nelore, filhos de 34 touros, escolhidos a partir de análises de coeficientes de parentesco, de forma a representar as principais linhagens da raça. A engorda foi feita em confinamentos realizados em dois locais, de junho de 2009 a janeiro de 2012. Dados de peso pré-abate (PA), peso da carcaça quente (PCQ), rendimento de carcaça (RC), área de olho de lombo (AOL), espessura de gordura subcutânea (EGS) e maciez da carne, expressa pela força de cisalhamento (FC), foram submetidos à análise pela aplicação de um modelo touro, com inclusão dos efeitos de grupos contemporâneos (GC) e correção linear para idade ao abate e duração do confinamento. Os GC foram formados por animais de mesma safra, origem e local do confinamento. As médias gerais e desvios-padrão para cada uma das variáveis PA, PCQ, RC, AOL, EGS e FC foram, respectivamente, 447,50±48,41 kg; 250,20±27,71 kg; 56,21±3,44 %; 59,97±7,30 cm2; 6,10±2,17 mm e 9,16±2,28 kgf/cm2. Para cada uma destas características, na mesma ordem, as estimativas de herdabilidade foram: 0,59±0,19; 0,32±0,14; 0,22±0,12; 0,52±0,18; 0,41±0,19 e 0,30±0,14. Tendo em vista estes resultados, conclui-se que a raça Nelore apresenta potencial de resposta à seleção para melhoria da qualidade da carne e da carcaça |
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Palavras-Chave: |
Raça Zebu; Variabilidade. |
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Thesagro: |
Bovino; Seleção. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/87985/1/PROCI-2013.00093.pdf
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Marc: |
LEADER 02189nam a2200229 a 4500
001 1964293
005 2023-05-16
008 2013 bl uuuu u00u1 u #d
100 1 $aROSA, A. do N.
245 $aParâmetros genéticos de características de carcaça e maciez da carne em uma população experimental da raça Nelore.$h[electronic resource]
260 $aIn: SIMPÓSIO BRASILEIRO DE MELHORAMENTO ANIMAL, 10., 2013, Uberaba. Anais... Belo Horizonte: SBMA$c2013
300 $a3 p.
520 $aCom o objetivo de avaliar a variabilidade genética da maciez da carne e de características de carcaça, foram analisados dados de abate de 811 animais Nelore, filhos de 34 touros, escolhidos a partir de análises de coeficientes de parentesco, de forma a representar as principais linhagens da raça. A engorda foi feita em confinamentos realizados em dois locais, de junho de 2009 a janeiro de 2012. Dados de peso pré-abate (PA), peso da carcaça quente (PCQ), rendimento de carcaça (RC), área de olho de lombo (AOL), espessura de gordura subcutânea (EGS) e maciez da carne, expressa pela força de cisalhamento (FC), foram submetidos à análise pela aplicação de um modelo touro, com inclusão dos efeitos de grupos contemporâneos (GC) e correção linear para idade ao abate e duração do confinamento. Os GC foram formados por animais de mesma safra, origem e local do confinamento. As médias gerais e desvios-padrão para cada uma das variáveis PA, PCQ, RC, AOL, EGS e FC foram, respectivamente, 447,50±48,41 kg; 250,20±27,71 kg; 56,21±3,44 %; 59,97±7,30 cm2; 6,10±2,17 mm e 9,16±2,28 kgf/cm2. Para cada uma destas características, na mesma ordem, as estimativas de herdabilidade foram: 0,59±0,19; 0,32±0,14; 0,22±0,12; 0,52±0,18; 0,41±0,19 e 0,30±0,14. Tendo em vista estes resultados, conclui-se que a raça Nelore apresenta potencial de resposta à seleção para melhoria da qualidade da carne e da carcaça
650 $aBovino
650 $aSeleção
653 $aRaça Zebu
653 $aVariabilidade
700 1 $aMENEZES, G. R. de O.
700 1 $aSILVA, L. O. C. da
700 1 $aTULLIO, R. R.
700 1 $aFEIJO, G. L. D.
700 1 $aALENCAR, M. M. de
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
16/12/2013 |
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Data da última atualização: |
20/10/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
VENTURIERI, A.; COELHO, A. dos S.; THALES, M. C.; BACELAR, M. D. R. |
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Afiliação: |
ADRIANO VENTURIERI, CPATU; Andréa dos Santos Coelho, BOLSISTA CPATU/CNPQ; Marcelo Cordeiro Thales, MPEG; Maria Denise Ribeiro Bacelar, IBGE. |
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Título: |
Análise da expansão da agricultura de grãos na região de Santarém e Belterra, Oeste do estado do Pará. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 13., 2007, Florianópolis. Anais... São José dos Campos: INPE, 2007. |
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Páginas: |
p. 7003-7010. |
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Idioma: |
Português |
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Conteúdo: |
The images obtained from orbital platforms have been used for the analysis of many occupation processes of the Amazon region along the years. Nevertheless, analyses that have only one date of passage portray just a point in time and, for that, do not explain the occupation process of the region. The evolution of the mechanical agriculture in the towns of Belterra and Santarém, in the west side of Pará state, is causing a series of conflicts between the producers and the environmental movements because of the hypothesis of the expansion of the cultivated area in detriment of the areas of forest formation. Through a time series analysis that uses images from the sensors MSS and TM Landsat from 1975, 1986, 1997, 1999, 2004 and 2005, using digital classification and an intense field work, it was possible to observe the dynamic of the use and the discovery of the land. The results show that there was a reduction of 25% of the forest in the last 30 years. Although the main landscape is the forest formation, it was found that the use of the land with the most occupied area are the regions destinated to the agriculture and cattle activities and which are related to the producers of different levels of technology who try to combine a series of productive systems, aiming the diversity of the natural resources. In addition, it was possible to observe that, unlike other regions in the Amazon, the areas of secondary vegetation presented a high growth in the analyzed time period. Finally it is noticed that the culture of grains was implemented, mostly, in areas that were altered and used for pasture, secondary vegetation and agriculture and livestock activities (related to small and medium producers), having been converted a total of 435 km2 of forest from the year of 1999 to 2004, representing 8% of the total planted area in that year. Although we notice a smaller impact in the environmental context, the direct conversion of the agriculture and livestock class into the grain plantation seems to indicate a process of land concentration and migration of smallholder farmers to the urban areas and/ or new fronts of occupation. This social impact, already observed in Santarém suburbs, should be object of study for the government, mainly concerning the elaboration and implementation of a specific agricultural politics for the Amazon and should enable the smallholder farmer the maintenance of his land and food production. MenosThe images obtained from orbital platforms have been used for the analysis of many occupation processes of the Amazon region along the years. Nevertheless, analyses that have only one date of passage portray just a point in time and, for that, do not explain the occupation process of the region. The evolution of the mechanical agriculture in the towns of Belterra and Santarém, in the west side of Pará state, is causing a series of conflicts between the producers and the environmental movements because of the hypothesis of the expansion of the cultivated area in detriment of the areas of forest formation. Through a time series analysis that uses images from the sensors MSS and TM Landsat from 1975, 1986, 1997, 1999, 2004 and 2005, using digital classification and an intense field work, it was possible to observe the dynamic of the use and the discovery of the land. The results show that there was a reduction of 25% of the forest in the last 30 years. Although the main landscape is the forest formation, it was found that the use of the land with the most occupied area are the regions destinated to the agriculture and cattle activities and which are related to the producers of different levels of technology who try to combine a series of productive systems, aiming the diversity of the natural resources. In addition, it was possible to observe that, unlike other regions in the Amazon, the areas of secondary vegetation presented a high growth in the analyzed time period. Finally ... Mostrar Tudo |
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Palavras-Chave: |
Cultura de grãos. |
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Thesagro: |
Sensoriamento Remoto. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/94124/1/7003-7010.pdf
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Marc: |
LEADER 03126nam a2200193 a 4500
001 1974089
005 2022-10-20
008 2007 bl uuuu u00u1 u #d
100 1 $aVENTURIERI, A.
245 $aAnálise da expansão da agricultura de grãos na região de Santarém e Belterra, Oeste do estado do Pará.$h[electronic resource]
260 $aIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 13., 2007, Florianópolis. Anais... São José dos Campos: INPE$c2007
300 $ap. 7003-7010.
520 $aThe images obtained from orbital platforms have been used for the analysis of many occupation processes of the Amazon region along the years. Nevertheless, analyses that have only one date of passage portray just a point in time and, for that, do not explain the occupation process of the region. The evolution of the mechanical agriculture in the towns of Belterra and Santarém, in the west side of Pará state, is causing a series of conflicts between the producers and the environmental movements because of the hypothesis of the expansion of the cultivated area in detriment of the areas of forest formation. Through a time series analysis that uses images from the sensors MSS and TM Landsat from 1975, 1986, 1997, 1999, 2004 and 2005, using digital classification and an intense field work, it was possible to observe the dynamic of the use and the discovery of the land. The results show that there was a reduction of 25% of the forest in the last 30 years. Although the main landscape is the forest formation, it was found that the use of the land with the most occupied area are the regions destinated to the agriculture and cattle activities and which are related to the producers of different levels of technology who try to combine a series of productive systems, aiming the diversity of the natural resources. In addition, it was possible to observe that, unlike other regions in the Amazon, the areas of secondary vegetation presented a high growth in the analyzed time period. Finally it is noticed that the culture of grains was implemented, mostly, in areas that were altered and used for pasture, secondary vegetation and agriculture and livestock activities (related to small and medium producers), having been converted a total of 435 km2 of forest from the year of 1999 to 2004, representing 8% of the total planted area in that year. Although we notice a smaller impact in the environmental context, the direct conversion of the agriculture and livestock class into the grain plantation seems to indicate a process of land concentration and migration of smallholder farmers to the urban areas and/ or new fronts of occupation. This social impact, already observed in Santarém suburbs, should be object of study for the government, mainly concerning the elaboration and implementation of a specific agricultural politics for the Amazon and should enable the smallholder farmer the maintenance of his land and food production.
650 $aAmazonia
650 $aSensoriamento Remoto
653 $aCultura de grãos
700 1 $aCOELHO, A. dos S.
700 1 $aTHALES, M. C.
700 1 $aBACELAR, M. D. R.
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Embrapa Amazônia Oriental (CPATU) |
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