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| Registros recuperados : 19 | |
| 5. |  | PERUCH, L. A. M.; SILVA, A. C. F. da. Avaliação de híbridos de repolho, couve-flor e brócolis sob cultivo orgânico, em duas épocas de plantio, no litoral Catarinense. Agropecuária Catarinense, Florianópolis, v. 19, n. 3, p.87-90, nov. 2006.| Biblioteca(s): Embrapa Hortaliças. |
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| 6. | | PERUCH, L. A. M.; SILVA, A. C. F. da. Avaliação de híbridos de reporlho, couve-lor e brócolis sob cultivo orgânico, em duas épocas de plantio, no litoral catarinense. Agropecuária Catarinense, Florianópolis, v. 19, n. 3, p. 87-90, nov. 2006.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 10. | | PERUCH, L. A. M.; MEDEIROS, A. M. de; BRUNA, E. D.; STADINIK, M. Biomassa cítrica, extrato de algas, calda bordalesa e fosfitos no controle do míldio da videira, cv. Niágara Branca. Revista de Ciências Agroveterinárias, Lages, v. 6, n. 2, p. 143-148, 2007.| Biblioteca(s): Embrapa Uva e Vinho. |
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| 12. | | GALVÃO, S.; STADNIK, M. J.; PERUCH, L. A. M.; BRUNA, E. D. Avaliação da eficiência de produtos alternativos para o controle do míldio e da antracnose em videira, cultivar Niágara Branca. Agropecuária Catarinense, Florianópolis, v. 19, n. 2, p. 91-93, 2006.| Biblioteca(s): Embrapa Uva e Vinho. |
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| 13. | | SILVA, A. C. F. da; PERUCH, L. A. M.; ALTHOFF, D. A. Desempenho de hortaliças em sucessão de culturas, sob cultivo convencional e orgânico, no Litoral Sul Catarinense. Agropecuária Catarinense, Florianópolis, v. 18, n. 2, p. 58-62, jul. 2005.| Biblioteca(s): Embrapa Hortaliças. |
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| 18. | | SILVA, A. C. F. da; SOUZA, Z. da S.; PERUCH, L. A. M.; MODOLON, T. A.; PEREIRA, A. P. da. SCS365 Cota: primeira cultivar catarinense de batata desenvolvida para o sistema de cultivo orgânico. Agropecuária catarinense, Florianópolis, v. 21, n. 3, p. 85-90, 2008.| Biblioteca(s): Embrapa Clima Temperado. |
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| 19. | | SCHERER, R. F.; LICHTEMBERG, L. A.; MARO, L. A. C.; BELTRAME, A. B.; KLABUNDE, G. H. F.; SÔNEGO, M.; PERUCH, L. A. M.; AMORIM, E. P.; SEREJO, J. A. dos S.; FERREIRA, C. F.; HADDAD, F. BRS SCS Belluna - a new banana cultivar for processing and fresh consumption. Agropecuária Catarinense, Florianópolis, v.33, n.1, p.32-37, jan./abr. 2020.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 19 | |
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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
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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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