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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
20/11/1996 |
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Data da última atualização: |
20/11/1996 |
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Autoria: |
RODEN, J. A. |
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Título: |
A comparison of alternative nucleus breeding systems and a sire referencing scheme for sheep improvement. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
Animal Science, v.62, n.2, p.265-270, 1996. |
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Idioma: |
Inglês |
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Conteúdo: |
Stochastic simulation was used to compare selection response and rate of inbreeding in four nucleus breeding systems and a sire referencing scheme for sheep: an open nucleus system (ONS), an open nucleus system with sequential selection of the nucleus (ONS-S), a sire referencing scheme (SRS) and a dispersed open nucleus system (DONS). Selection was based on best linear unbiased prediction of breeding values for a single trait measurable on all individuals prior to selection. Selection in a population of 1200 ewes equally divided into 10 flocks was simulated over a 15-year period. The mean rate of genetic gain was proportionately about 0.15 higher in ONS-S and DONS compared with ONS and SRS. The rate of inbreeding in SRS was considerably lower and in ONS-S, considerably higher, than in the other systems. The level of prolificacy in the population did not influence the relative ranking of the breeding systems but may have implicationsjor their optimal structure. |
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Palavras-Chave: |
Avaliacao de reprodutor. |
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Thesagro: |
Melhoramento; Ovino. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01436naa a2200157 a 4500
001 1516319
005 1996-11-20
008 1996 bl uuuu u00u1 u #d
100 1 $aRODEN, J. A.
245 $aA comparison of alternative nucleus breeding systems and a sire referencing scheme for sheep improvement.
260 $c1996
520 $aStochastic simulation was used to compare selection response and rate of inbreeding in four nucleus breeding systems and a sire referencing scheme for sheep: an open nucleus system (ONS), an open nucleus system with sequential selection of the nucleus (ONS-S), a sire referencing scheme (SRS) and a dispersed open nucleus system (DONS). Selection was based on best linear unbiased prediction of breeding values for a single trait measurable on all individuals prior to selection. Selection in a population of 1200 ewes equally divided into 10 flocks was simulated over a 15-year period. The mean rate of genetic gain was proportionately about 0.15 higher in ONS-S and DONS compared with ONS and SRS. The rate of inbreeding in SRS was considerably lower and in ONS-S, considerably higher, than in the other systems. The level of prolificacy in the population did not influence the relative ranking of the breeding systems but may have implicationsjor their optimal structure.
650 $aMelhoramento
650 $aOvino
653 $aAvaliacao de reprodutor
773 $tAnimal Science$gv.62, n.2, p.265-270, 1996.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 11 | |
| 8. |  | NESHICH, G.; MANCINI, A. L.; YAMAGISHI, M. E. B.; FALCAO, P. R. K.; FILETO, R.; PINTO, I. P.; PALANDRANI, J. F.; KRAUCHENCO, J. N.; BAUDET, C.; MONTAGNER, A. J.; HIGA, R. H. STING Report: convenient web-based application for graphic and tabular presentations of protein sequence, structure and function descriptors from the STING database. Nucleic Acids Research, v. 33, p. D269-D274, 2005. Na publicação: Paula R. Kuser.| Biblioteca(s): Embrapa Agricultura Digital. |
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| 9. | | NESHICH, G.; YAMAGISHI, M. E. B.; ROCCHIA, W.; MANCINI, A. L.; FALCAO, P. R. K.; FILETO, R.; BAUDET, C.; PINTO, I. P.; MONTAGNER, A. J.; PALANDRANI, J. F.; KRAUCHENCO, J. N.; TORRES, R. C.; BEZERRA, G. B. P.; SOUZA, S.; TOGAWA, R. C.; HIGA, R. H. Protein structure analysis and visualization using Java Protein Dossier. In: INTERNATIONAL CONFERENCE ON CHEMOMETRICS AND BIOINFORMATICS IN ASIA, 2004, Shanghai. Proceedings... Shanghai: [s.n.], 2004. 1 p. CCBA 2004. Na publicação: Paula R. Kuser.| Biblioteca(s): Embrapa Agricultura Digital. |
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| 10. | | NESHICH, G.; ROCCHIA, W.; MANCINI, A. L.; YAMAGISHI, M. E. B.; KUSER, P. R.; FILETO, R.; BAUDET, C.; PINTO, I. P.; MONTAGNER, A. J.; PALANDRANI, J. F.; KRAUCHENCO, J. N.; TORRES, R. C.; SOUZA, S.; TOGAWA, R. C.; HIGA, R. H. Java Protein Dossier: a novel web-based data visualization tool for comprehensive analysis of protein structure. Nucleic Acids Research, v. 32, W595-W601, 2004.| Biblioteca(s): Embrapa Agricultura Digital. |
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| 11. | | NESHICH, G.; TOGAWA, R. C.; MANCINI, A. L.; FALCAO, P. R. K.; YAMAGISHI, M. E. B.; PAPPAS JUNIOR, G.; TORRES, W. V.; CAMPOS, T. F. e; FERREIRA, L. L.; LUNA, F. M.; OLIVEIRA, A. G.; MIURA, R. T.; INOUE, M. K.; HORITA, L. G.; SOUZA, D. F. de; DOMINIQUINI, F.; ÁLVARO, A.; LIMA, C. S.; OGAWA, F. O.; GOMES, G. B.; PALANDRANI, J. F.; SANTOS, G. F. dos; FREITAS, E. M. de; MATTIUZ, A. R.; COSTA, I. C.; ALMEIDA, C. L. de; SOUZA, S.; BAUDET, C.; HIGA, R. H. STING Millennium: a web-based suite of programs for comprehensive and simultaneous analysis of protein structure and sequence. Nucleic Acids Research, London, v. 31, n. 13, p. 3386-3392, July 2003. Na publicação: Paula R. Kuser.| Biblioteca(s): Embrapa Agricultura Digital. |
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| Registros recuperados : 11 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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