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| Registros recuperados : 10 | |
| 3. |  | KREUZ, C. L.; STUKER, H. Peso medio da maca, cultivares gala, golden delicious e Fuji, no meio-oeste Catarinense Revista Brasileira de Fruticultura, v.10, n.2, p.35-38, Cruz das Almas, 1988| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 7. | | ZAFARRI, G. R.; KOLLER, O. L.; STUKER, H. Efeito do acido 2,4 diclorofenoxiacetico e do acido indolbutirico sobre o enraizamento de estacas de citros Revista Brasileira de Fruticultura, v.15, n,2, p.39-44, Cruz das Almas,1993.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 10. | | KOLLER, O. L.; STUKER, H.; VERONA, L. A. F.; SOPRANO, E. Efeito da umidade da semente, da temperatura de estocagem e da duracao de estocagem sobre a germinacao de Poncirys trifoliata e de outros porta-enxertos de citros Revista Brasileira de Fruticultura, v.15, n,1, p.27-33, Cruz das Almas,1993.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 10 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
04/10/2011 |
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Data da última atualização: |
23/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
BIASSUS, I. de O.; COBUCI, J. A.; COSTA, C. N.; RORATO, P. R. N.; BRACCINI NETO, J.; CARDOSO, L. L. |
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Afiliação: |
IGOR DE OLIVEIRA BIASSUS, UFRGS; JAIME ARAÚJO COBUCI, UFRGS / CNPq; CLAUDIO NAPOLIS COSTA, CNPGL; PAULO ROBERTO NOGARA RORATO, UFSM; JOSÉ BRACCINI NETO, UFRGS.; LEANDRO LUNARDINI CARDOSO, UFRGS. |
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Título: |
Genetic parameters for production traits in primiparous Holstein cows estimated by random regression models. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Revista Brasileira de Zootecnia, v. 40, n. 1, p. 85-94, 2011. |
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DOI: |
https://doi.org/10.1590/S1516-35982011000100012 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to estimate genetic parameters for milk, fat and protein yields of Holstein cows using 56,508; 35,091 and 8,326 test-day milk records from 7,015, 4,476 and 1,114 cows, calves of 359, 246 and 90 bulls, respectively. The additive genetic and permanent environmental effects were estimated using REML. Random regression models with Legendre polynomials from order 3 to 6 were used. Residual variances were considered homogeneous over the lactation period. The estimates of variance components showed similar trends, with an increase of the polynomial order for each trait. The heritability estimates ranged from 0.14 to 0.31; 0.03 to 0.21 and 0.09 to 0.33 for milk, fat and protein yield, respectively. Genetic correlations among milk, fat and protein yields ranged from 0.02 to 1.00; 0.34 to 1.00 and 0.42 to 1.00, respectively. Models with higher order Legendre polynomials are the best suited to adjust test-day data for the three production traits studied. |
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Palavras-Chave: |
Fat yield; Herdability; Protein yield; Test-day. |
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Thesaurus NAL: |
milk yield. |
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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/54200/1/Genetic-parameters-for-production.pdf
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|
Marc: |
LEADER 01771naa a2200253 a 4500
001 1902208
005 2023-01-23
008 2011 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/S1516-35982011000100012$2DOI
100 1 $aBIASSUS, I. de O.
245 $aGenetic parameters for production traits in primiparous Holstein cows estimated by random regression models.$h[electronic resource]
260 $c2011
520 $aThe objective of this study was to estimate genetic parameters for milk, fat and protein yields of Holstein cows using 56,508; 35,091 and 8,326 test-day milk records from 7,015, 4,476 and 1,114 cows, calves of 359, 246 and 90 bulls, respectively. The additive genetic and permanent environmental effects were estimated using REML. Random regression models with Legendre polynomials from order 3 to 6 were used. Residual variances were considered homogeneous over the lactation period. The estimates of variance components showed similar trends, with an increase of the polynomial order for each trait. The heritability estimates ranged from 0.14 to 0.31; 0.03 to 0.21 and 0.09 to 0.33 for milk, fat and protein yield, respectively. Genetic correlations among milk, fat and protein yields ranged from 0.02 to 1.00; 0.34 to 1.00 and 0.42 to 1.00, respectively. Models with higher order Legendre polynomials are the best suited to adjust test-day data for the three production traits studied.
650 $amilk yield
653 $aFat yield
653 $aHerdability
653 $aProtein yield
653 $aTest-day
700 1 $aCOBUCI, J. A.
700 1 $aCOSTA, C. N.
700 1 $aRORATO, P. R. N.
700 1 $aBRACCINI NETO, J.
700 1 $aCARDOSO, L. L.
773 $tRevista Brasileira de Zootecnia$gv. 40, n. 1, p. 85-94, 2011.
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Embrapa Gado de Leite (CNPGL) |
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