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| Registros recuperados : 9 | |
| 2. |  | SCHNEIDER, N. A.; GIACOMELLI, F.; PERUZZO, L.; AZEVEDO FILHO, W. S. de; MULLER, C.; LOPES, J. R. S.; BOTTON, M.; CARVALHO, G. S. Cigarrinhas (Cicadellidae; Cercopidae) potenciais vetoras de Xylella fastidiosa em pomar de ameixeira no Rio Grande do Sul, Brasil. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 23., 2010, Natal, RN. Anais... Natal: SEB: EMPARN: UFRN: UFERSA: IFRN, 2010. 1 CD-ROM. Resumo.| Biblioteca(s): Embrapa Uva e Vinho. |
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| 3. | | SCHNEIDER, N. A.; GIACOMELLI, F.; FOCHEZATO, J.; ROCKENBACH, P.; AZEVEDO FILHO, W. S. de; MULLER, C.; LOPES, J. R. S.; BOTTON, M.; CARVALHO, G. S. Cigarrinhas (Cicadellidae: Cicadelinae) potenciais vetoras de Xylella fastidiosa em pomares de ameixeira no município de Protásio Alves, Rio Grande do Sul, Brasil. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 24., 2012, Curitiba. Anais web. Curitiba: SEB: UFPR, 2012.| Biblioteca(s): Embrapa Uva e Vinho. |
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| 4. | | SCHNEIDER, N. A.; VIGNATTI, G.; AZEVEDO FILHO, W. S. de; GIACOMELLI, F.; MULLER, C.; LOPES, J. R. S.; BOTTON, M.; ARIOLI, C. J. Comparative analysis of the capture of leafhoppers (Cicadellidae: Cicadellinae), for different strata in plum orchards in the municipality of Videira, Santa Catarina, Brazil. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 25., 2014, Goiânia, GO. Resumos... Goiânia: Embrapa Arroz e Feijão; Universidade Federal de Goiás, 2014.| Biblioteca(s): Embrapa Uva e Vinho. |
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| 5. | | GIACOMELLI, F.; SCHNEIDER, N. A.; PERUZZO, L.; AZEVEDO FILHO, W. S. de; MULLER, C.; LOPES, J. R. S.; BOTTON, M.; CARVALHO, G. S. Giponíneos (Cicadellidae: Gyponinae) coletados em pomar de ameixeira no Rio Grande do Sul, Brasil. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 23., 2010, Natal, RN. Anais... Natal: SEB: EMPARN: UFRN: UFERSA: IFRN, 2010. 1 CD-ROM. Resumo.| Biblioteca(s): Embrapa Uva e Vinho. |
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| 6. | | GIACOMELLI, F.; SCHNEIDER, N. A.; MULLER, C.; LOPES, J. R. S.; BOTTON, M.; ARIOLI, C. J.; CARVALHO, G. S.; AZEVEDO FILHO, W. S. Espécies de Cercopoidea (Hemiptera: Auchenorrhyncha) coletadas em pomares de ameixeira em Santa Catarina, Brasil. In: SIMPÓSIO DE BIODIVERSIDADE, 3., 2011, Santa Maria. Filosofia da ciência e a prática científica: anais. Santa Maria: UFSM, 2011. p. 35. Resumo.| Biblioteca(s): Embrapa Uva e Vinho. |
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| 7. | | SCHNEIDER, N. A.; GIACOMELLI, F.; TOLOTTI, S.; FOCHEZZTO, J.; AZEVEDO FILHO, W. S. de; MULLER, C.; LOPES, J. R. S.; ARIOLI, C. J.; BOTTON, M.; CARVALHO, G. S. Espécies de cigarrinhas (Cicadellidae: Cicadelinae) potenciais vetoras de Xylella fastidiosa em pomares de ameixeira no município de Videira, Santa Catarina, Brasil. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 24., 2012, Curitiba. Anais web. Curitiba: SEB: UFPR, 2012.| Biblioteca(s): Embrapa Uva e Vinho. |
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| 8. | | SCHNEIDER, N. A.; GIACOMELLI, F.; MULLER, C.; LOPES, J. R. S.; BOTTON, M.; CARVALHO, G. S.; AZEVEDO FILHO, W. S. DE. Espécies de cigarrinhas (Cicadellidae: Cicadellinae) potenciais vetoras de xyella fastidiosa em pomares de ameixeira no Rio Grande do Sul, Brasil. In: SIMPÓSIO DE BIODIVERSIDADE, 3., 2011, Santa Maria. Filosofia da ciência e a prática científica: anais. Santa Maria: UFSM, 2011. p. 86. Resumo.| Biblioteca(s): Embrapa Uva e Vinho. |
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| 9. | | SCHNEIDER, N. A.; VIGNATTI, G.; AZEVEDO FILHO, W. S. de; GIACOMELLI, F.; MULLER, C.; LOPES, J. R. S.; BOTTON, M.; ARIOLI, C. J. Faunistic analysis of Gyponini (Cicadellidae: Iassinae: Gyponini), collected in plum orchards located in the municipality of Videira, Santa Catarina, Brazil. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 25., 2014, Goiânia, GO. Resumos... Goiânia: Embrapa Arroz e Feijão; Universidade Federal de Goiás, 2014.| Biblioteca(s): Embrapa Uva e Vinho. |
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| Registros recuperados : 9 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
14/01/2019 |
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Data da última atualização: |
24/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
KERN, E. L.; COBUCI, J. A.; COSTA, C. N.; DUCROCQ, V. |
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Afiliação: |
Elisandra Lurdes Kern, UFRGS; Jaime Araujo Cobuci, UFRGS; CLAUDIO NAPOLIS COSTA, CNPGL; Vincent Ducrocq, French National Institute for Agricultural Research. |
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Título: |
Phenotypic relationships between type traits and productive life using a piecewise Weibull proportional hazard model. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Scientia Agricola, v. 75, n. 6, p. 470-478, 2018. |
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DOI: |
10.1590/1678-992X-2017-0153 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT: Longevity is an important trait due to its relationship with profitability. Type traits have been used as indirect predictors for productive life. The objective of this study was to evaluate the relationship of 20 type traits on length of productive life in Brazilian Holsteins, using a piecewise Weibull proportional hazard model. Three analyses were performed i) productive life was corrected for within herd level of production as a proxy for functional longevity, which included the time-dependent effects of region within year, class of milk production within herdyear, milk production class within lactation number, fat class and protein contents within herd and (variation in) herd size as well as the time-independent fixed effect of age at first calving and the type trait score; ii) the effects related to production were omitted from the first model (true longevity) and iii) with the first model, the effect of type was also studied considering five classes of percentage of type-scored cows within the herd. All analyses were performed using the Survival Kit program. The final score, angularity, top line, udder texture and suspensory ligament showed the strongest relationship with productive life. When type traits were available only for a small fraction of the herd, the cows had a better chance of remaining longer in the herd. The absence of type trait phenotypes was associated with a strong increase of culling risk for the cows. Type traits were not found to be good indirect predictors of productive life in Brazil. MenosABSTRACT: Longevity is an important trait due to its relationship with profitability. Type traits have been used as indirect predictors for productive life. The objective of this study was to evaluate the relationship of 20 type traits on length of productive life in Brazilian Holsteins, using a piecewise Weibull proportional hazard model. Three analyses were performed i) productive life was corrected for within herd level of production as a proxy for functional longevity, which included the time-dependent effects of region within year, class of milk production within herdyear, milk production class within lactation number, fat class and protein contents within herd and (variation in) herd size as well as the time-independent fixed effect of age at first calving and the type trait score; ii) the effects related to production were omitted from the first model (true longevity) and iii) with the first model, the effect of type was also studied considering five classes of percentage of type-scored cows within the herd. All analyses were performed using the Survival Kit program. The final score, angularity, top line, udder texture and suspensory ligament showed the strongest relationship with productive life. When type traits were available only for a small fraction of the herd, the cows had a better chance of remaining longer in the herd. The absence of type trait phenotypes was associated with a strong increase of culling risk for the cows. Type traits were not found to be good... Mostrar Tudo |
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Palavras-Chave: |
Conformation traits; Culling risk; Survival analysis. |
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Thesaurus NAL: |
Dairy cattle; Longevity. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/190361/1/Artigo-SciAgricola-Claudio-Phenotypic.pdf
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Marc: |
LEADER 02250naa a2200229 a 4500
001 2103810
005 2023-01-24
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1590/1678-992X-2017-0153$2DOI
100 1 $aKERN, E. L.
245 $aPhenotypic relationships between type traits and productive life using a piecewise Weibull proportional hazard model.$h[electronic resource]
260 $c2018
520 $aABSTRACT: Longevity is an important trait due to its relationship with profitability. Type traits have been used as indirect predictors for productive life. The objective of this study was to evaluate the relationship of 20 type traits on length of productive life in Brazilian Holsteins, using a piecewise Weibull proportional hazard model. Three analyses were performed i) productive life was corrected for within herd level of production as a proxy for functional longevity, which included the time-dependent effects of region within year, class of milk production within herdyear, milk production class within lactation number, fat class and protein contents within herd and (variation in) herd size as well as the time-independent fixed effect of age at first calving and the type trait score; ii) the effects related to production were omitted from the first model (true longevity) and iii) with the first model, the effect of type was also studied considering five classes of percentage of type-scored cows within the herd. All analyses were performed using the Survival Kit program. The final score, angularity, top line, udder texture and suspensory ligament showed the strongest relationship with productive life. When type traits were available only for a small fraction of the herd, the cows had a better chance of remaining longer in the herd. The absence of type trait phenotypes was associated with a strong increase of culling risk for the cows. Type traits were not found to be good indirect predictors of productive life in Brazil.
650 $aDairy cattle
650 $aLongevity
653 $aConformation traits
653 $aCulling risk
653 $aSurvival analysis
700 1 $aCOBUCI, J. A.
700 1 $aCOSTA, C. N.
700 1 $aDUCROCQ, V.
773 $tScientia Agricola$gv. 75, n. 6, p. 470-478, 2018.
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