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Registro Completo |
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
15/03/2012 |
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Data da última atualização: |
09/11/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
AMARAL, E. F. do; BARDALES, N. G.; ARAÚJO, E. A. de; OLIVEIRA, T. K. de; MELO, A. W. F. de; AMARAL, E. F. do; LANI, J. L.; FRANKE, I. L. |
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Afiliação: |
EUFRAN FERREIRA DO AMARAL, CPAF-AC; NILSON GOMES BARDALES, IMC; EDSON ALVES DE ARAÚJO, SEAP; TADARIO KAMEL DE OLIVEIRA, CPAF-AC; ANTÔNIO WILLIAN FLORES DE MELO, UFAC; EMANUEL FERREIRA DO AMARAL, Vectra Engenharia; JOÃO LUIZ LANI, UFV; IDESIO LUIS FRANKE, CPAF-AC. |
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Título: |
Aptidão agroflorestal do estado do Acre: alternativa sustentável de usos dos solos acreanos. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 8., 2011, Belém, PA. Sistemas agroflorestais na paisagem florestal: desafios científicos, tecnológicos e de políticas para integrar benefícios e globais: anais. Belém, PA : SBSAF : Embrapa Amazônia Oriental: UFRA : CEPLAC : EMATER : ICRAF, 2011. |
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Páginas: |
7 p. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Palavras-Chave: |
Acre; Sistema agroflorestal; Solos. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/55841/1/24164.PDF
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Marc: |
LEADER 00949nam a2200229 a 4500
001 1918922
005 2023-11-09
008 2011 bl uuuu u00u1 u #d
100 1 $aAMARAL, E. F. do
245 $aAptidão agroflorestal do estado do Acre$balternativa sustentável de usos dos solos acreanos.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 8., 2011, Belém, PA. Sistemas agroflorestais na paisagem florestal: desafios científicos, tecnológicos e de políticas para integrar benefícios e globais: anais. Belém, PA : SBSAF : Embrapa Amazônia Oriental: UFRA : CEPLAC : EMATER : ICRAF$c2011
300 $a7 p.$c1 CD-ROM.
653 $aAcre
653 $aSistema agroflorestal
653 $aSolos
700 1 $aBARDALES, N. G.
700 1 $aARAÚJO, E. A. de
700 1 $aOLIVEIRA, T. K. de
700 1 $aMELO, A. W. F. de
700 1 $aAMARAL, E. F. do
700 1 $aLANI, J. L.
700 1 $aFRANKE, I. L.
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Registro original: |
Embrapa Acre (CPAF-AC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte; Embrapa Pantanal. |
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Data corrente: |
13/08/2021 |
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Data da última atualização: |
13/08/2021 |
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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: |
PORTES, J, V.; MENEZES, G. R. de O.; SILVA, L. O. C. da; MACNEIL, M. D.; ABREU, U. G. P. de; LACERDA, V. V. de; BRACCINI NETO, J. |
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Afiliação: |
JULIANA VARCHAKI PORTES, Universidade Federal do Rio Grande do Sul; GILBERTO ROMEIRO DE OLIVEIRA MENEZE, CNPGC; LUIZ OTAVIO CAMPOS DA SILVA, CNPGC; MICHAEL D. MACNEIL, Delta G -Miles City; URBANO GOMES PINTO DE ABREU, CPAP; VIVIANE VASCONCELOS DE LACERDA, Universidade Federal do Rio Grande do Sul; JOSÉ BRACCINI NETO, Universidade Federal do Rio Grande do Sul. |
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Título: |
Selection indexes for nellore production system in the Brazilian Pantanal. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Revista Brasileira de Zootecnia, v.50, e20200264, 2021. |
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DOI: |
https://doi.org/10.37496/rbz5020200264 |
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Idioma: |
Inglês
Português |
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Notas: |
Animal production systems and agribusiness. |
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Conteúdo: |
The objective was to develop selection indexes for Nellore cattle raised in full-cycle production system in the Brazilian Pantanal. The resulting offspring are retained as replacements or sold at two years of age. Preliminary analyses explored effects of scale on economic values (EV). However, given the available data, these effects were very small. Presented herein are results from a simulated system consisting of 5,000 cows with all animals maintained on pasture as is typical in Pantanal. The EV were determined by approximating the partial derivatives of the profit function, changing one trait at a time, by one unit, while keeping the other traits constant. Traits in the breeding objective were mature cow weight, direct and maternal weaning weight, postweaning average daily gain, subcutaneous fat depth, longissimus muscle area, and stayability. Economic values were calculated on the basis of number of animals (per head), number of animal units, and arroba of carcasss weight. Regardless of the basis, maternal weaning weight and subcutaneous fat depth made negligible contributions to the breeding objective. Proportions of variation in the breeding objectives (per head, per animal unit, per arroba) explained by cow weight, direct weaning weight, postweaning average daily gain, stayability, and longissimus muscle area were: 13, 13, 17; 6, 1, 5; 3, 3, 4; 67, 67, 61; and 11, 17, 13, respectively. These indexes may aid Nellore breeders in their selection decisions, thus facilitating the genetic progress and increased productivity and profitability of Pantanal herds. MenosThe objective was to develop selection indexes for Nellore cattle raised in full-cycle production system in the Brazilian Pantanal. The resulting offspring are retained as replacements or sold at two years of age. Preliminary analyses explored effects of scale on economic values (EV). However, given the available data, these effects were very small. Presented herein are results from a simulated system consisting of 5,000 cows with all animals maintained on pasture as is typical in Pantanal. The EV were determined by approximating the partial derivatives of the profit function, changing one trait at a time, by one unit, while keeping the other traits constant. Traits in the breeding objective were mature cow weight, direct and maternal weaning weight, postweaning average daily gain, subcutaneous fat depth, longissimus muscle area, and stayability. Economic values were calculated on the basis of number of animals (per head), number of animal units, and arroba of carcasss weight. Regardless of the basis, maternal weaning weight and subcutaneous fat depth made negligible contributions to the breeding objective. Proportions of variation in the breeding objectives (per head, per animal unit, per arroba) explained by cow weight, direct weaning weight, postweaning average daily gain, stayability, and longissimus muscle area were: 13, 13, 17; 6, 1, 5; 3, 3, 4; 67, 67, 61; and 11, 17, 13, respectively. These indexes may aid Nellore breeders in their selection decisions, thus facilitat... Mostrar Tudo |
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Thesagro: |
Gado de Corte; Genética Animal. |
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Thesaurus NAL: |
Animal genetics; Beef cattle; Bioeconomic models. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225148/1/Selection-indexes-for-Nellore-2021.pdf
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Marc: |
LEADER 02447naa a2200277 a 4500
001 2133534
005 2021-08-13
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.37496/rbz5020200264$2DOI
100 1 $aPORTES, J, V.
245 $aSelection indexes for nellore production system in the Brazilian Pantanal.$h[electronic resource]
260 $c2021
500 $aAnimal production systems and agribusiness.
520 $aThe objective was to develop selection indexes for Nellore cattle raised in full-cycle production system in the Brazilian Pantanal. The resulting offspring are retained as replacements or sold at two years of age. Preliminary analyses explored effects of scale on economic values (EV). However, given the available data, these effects were very small. Presented herein are results from a simulated system consisting of 5,000 cows with all animals maintained on pasture as is typical in Pantanal. The EV were determined by approximating the partial derivatives of the profit function, changing one trait at a time, by one unit, while keeping the other traits constant. Traits in the breeding objective were mature cow weight, direct and maternal weaning weight, postweaning average daily gain, subcutaneous fat depth, longissimus muscle area, and stayability. Economic values were calculated on the basis of number of animals (per head), number of animal units, and arroba of carcasss weight. Regardless of the basis, maternal weaning weight and subcutaneous fat depth made negligible contributions to the breeding objective. Proportions of variation in the breeding objectives (per head, per animal unit, per arroba) explained by cow weight, direct weaning weight, postweaning average daily gain, stayability, and longissimus muscle area were: 13, 13, 17; 6, 1, 5; 3, 3, 4; 67, 67, 61; and 11, 17, 13, respectively. These indexes may aid Nellore breeders in their selection decisions, thus facilitating the genetic progress and increased productivity and profitability of Pantanal herds.
650 $aAnimal genetics
650 $aBeef cattle
650 $aBioeconomic models
650 $aGado de Corte
650 $aGenética Animal
700 1 $aMENEZES, G. R. de O.
700 1 $aSILVA, L. O. C. da
700 1 $aMACNEIL, M. D.
700 1 $aABREU, U. G. P. de
700 1 $aLACERDA, V. V. de
700 1 $aBRACCINI NETO, J.
773 $tRevista Brasileira de Zootecnia$gv.50, e20200264, 2021.
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Embrapa Gado de Corte (CNPGC) |
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