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| Registros recuperados : 32 | |
| 14. |  | LOCATELLI, M.; MARCANTE, P. H.; CIPRIANI, H. N.; MARTINS, E. P.; VIEIRA, A. H. Avaliação do crescimento da castanha-do-brasil (Bertholletia excelsa Bonpl.) em um plantio no munícipio de machadinho do oeste. Enciclopédia Biosfera, Centro Científico Conhecer - Goiânia, v.11, n.22, p. 457 - 470, 2015.| Biblioteca(s): Embrapa Rondônia. |
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| 19. | | SOARES, M. P.; ANGELIS, C. F. de; SILVA, L. M.; MONTANARI, B. H.; CAMPOS, C. M. de; QUEIROZ, S. C. do N. de; FERNANDES, M. N.; LONGHINI, W. E.; PERES, M. Â. B.; LEITE, C. A. C.; RANTIN, F. T.; SAMPAIO, F. G. Short-term feeding with a diet supplemented with alcoholic extract of Artemisia annua enhances the resistance and growth performance of juvenile Nile tilapia (Oreochromis niloticus). Aquaculture International, 2023. Online first.| Biblioteca(s): Embrapa Meio Ambiente. |
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| Registros recuperados : 32 | |
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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: |
B - 1 |
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Autoria: |
AZEVEDO JUNIOR, J.; GONÇALVES, T. de M.; SOUZA, J. C. de; RODRIGUEZ, M. A. P.; COSTA, C. N.; CARVALHEIRA, J. G. V. |
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Afiliação: |
Jairo Azevedo Junior, UFLA; Tarcisio de Moraes Gonçalves, UFLA; José Camisão de Souza, UFLA; Mary Ana Petersen Rodriguez, Universidade Estadual de Montes Claros; CLAUDIO NAPOLIS COSTA, CNPGL; Julio Gil Vale Carvalheira, Universidade do Porto, Portugal. |
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Título: |
Adjustment of lactation curves of Holstein cows from herds of Minas Gerais, Brazil. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Agricultural Science, v. 10, n. 2, 2018. |
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Páginas: |
14 p. |
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DOI: |
10.5539/jas.v10n2p1 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract Random regression models (RRM) differ in terms of the functions used to describe the shape of lactation curves. The aim was to compare random regression models under different functions to describe the lactation curves from Holstein cows in herds of the state of Minas Gerais. A database of 28,118 production records was analyzed using the test-day records of 4,230 first parity cows from five herds. The Wilmink, Ali & Schaeffer and Legendre polynomial (orders 4, 5 and 6) functions were adjusted in RRM to model the mean production trend (fixed) and genetic and permanent environmental (random) effects. The residual variances were assumed to be constant throughout lactation. Analyses were performed using the AIREMLF90 program. Except for the model with the polynomial function of order 5, all models converged. The Wilmink function showed lower values for criteria based on the -2log (L), AIC and BIC. The model with the Legendre polynomial of order 6 showed lower residual variance. Heritability estimates were similar between functions, ranging from 0.07 to 0.18 and were higher from 215 days of lactation. From 155 days of lactation, genetic and permanent environmental correlations between successive controls are of high magnitude. The Wilmink function is the most suitable for the study of milk yields from primiparous Holstein cows. The selection of animals is possible from 155 days of lactation on. Permanent environmental effects have greater influence on the milk production at the end of lactation of primiparous cows and should be considered since they are important and may be cumulative throughout lactation. MenosAbstract Random regression models (RRM) differ in terms of the functions used to describe the shape of lactation curves. The aim was to compare random regression models under different functions to describe the lactation curves from Holstein cows in herds of the state of Minas Gerais. A database of 28,118 production records was analyzed using the test-day records of 4,230 first parity cows from five herds. The Wilmink, Ali & Schaeffer and Legendre polynomial (orders 4, 5 and 6) functions were adjusted in RRM to model the mean production trend (fixed) and genetic and permanent environmental (random) effects. The residual variances were assumed to be constant throughout lactation. Analyses were performed using the AIREMLF90 program. Except for the model with the polynomial function of order 5, all models converged. The Wilmink function showed lower values for criteria based on the -2log (L), AIC and BIC. The model with the Legendre polynomial of order 6 showed lower residual variance. Heritability estimates were similar between functions, ranging from 0.07 to 0.18 and were higher from 215 days of lactation. From 155 days of lactation, genetic and permanent environmental correlations between successive controls are of high magnitude. The Wilmink function is the most suitable for the study of milk yields from primiparous Holstein cows. The selection of animals is possible from 155 days of lactation on. Permanent environmental effects have greater influence on the milk production... Mostrar Tudo |
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Palavras-Chave: |
Models comparison; Permanent environmental effects; Random regression model. |
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Thesaurus NAL: |
Dairy cattle; Heritability. |
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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/190401/1/Artigo-JAgrSci-Claudio-Adjustment.pdf
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Marc: |
LEADER 02438naa a2200265 a 4500
001 2103873
005 2023-01-24
008 2018 bl uuuu u00u1 u #d
024 7 $a10.5539/jas.v10n2p1$2DOI
100 1 $aAZEVEDO JUNIOR, J.
245 $aAdjustment of lactation curves of Holstein cows from herds of Minas Gerais, Brazil.$h[electronic resource]
260 $c2018
300 $a14 p.
520 $aAbstract Random regression models (RRM) differ in terms of the functions used to describe the shape of lactation curves. The aim was to compare random regression models under different functions to describe the lactation curves from Holstein cows in herds of the state of Minas Gerais. A database of 28,118 production records was analyzed using the test-day records of 4,230 first parity cows from five herds. The Wilmink, Ali & Schaeffer and Legendre polynomial (orders 4, 5 and 6) functions were adjusted in RRM to model the mean production trend (fixed) and genetic and permanent environmental (random) effects. The residual variances were assumed to be constant throughout lactation. Analyses were performed using the AIREMLF90 program. Except for the model with the polynomial function of order 5, all models converged. The Wilmink function showed lower values for criteria based on the -2log (L), AIC and BIC. The model with the Legendre polynomial of order 6 showed lower residual variance. Heritability estimates were similar between functions, ranging from 0.07 to 0.18 and were higher from 215 days of lactation. From 155 days of lactation, genetic and permanent environmental correlations between successive controls are of high magnitude. The Wilmink function is the most suitable for the study of milk yields from primiparous Holstein cows. The selection of animals is possible from 155 days of lactation on. Permanent environmental effects have greater influence on the milk production at the end of lactation of primiparous cows and should be considered since they are important and may be cumulative throughout lactation.
650 $aDairy cattle
650 $aHeritability
653 $aModels comparison
653 $aPermanent environmental effects
653 $aRandom regression model
700 1 $aGONÇALVES, T. de M.
700 1 $aSOUZA, J. C. de
700 1 $aRODRIGUEZ, M. A. P.
700 1 $aCOSTA, C. N.
700 1 $aCARVALHEIRA, J. G. V.
773 $tJournal of Agricultural Science$gv. 10, n. 2, 2018.
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Esconder MarcMostrar Marc Completo |
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
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Registro completo
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Biblioteca(s): |
Catálogo Coletivo de Periódicos Embrapa; Embrapa Amazônia Oriental. |
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Identificador: |
503 |
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Data corrente: |
09/05/2002 |
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Data da última atualização: |
12/05/2015 |
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Código do título: |
0901372 |
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ISSN: |
0100-1922 |
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Código CCN: |
003459-2 |
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Título e Subtítulo: |
ANAIS DA BIBLIOTECA NACIONAL |
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Título alternativo: |
ANAES DA BIBLIOTHECA NACIONAL |
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Entidade: |
Biblioteca Nacional do Rio de Janeiro |
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Local de publicação: |
Rio De Janeiro, RJ |
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Periodicidade: |
Anual |
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Inicio de publicação: |
1876 |
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Coleções da unidade: |
Embrapa Amazônia Oriental
1883 11; 1884/85 12; 1886 14(1-2); 1887/88 15(1/2); 1889/90 16(1-2); 1891/92 17; 1896 18; 1898 20; 1899 21; 1900 22; 1901 23; 1903 25; 1904 26; 1905 27; 1906 28; 1907 29; 1908 30; 1909 31; 1910 32; 1911 33; 1912 34; 1913 35; 1914 36; 1915 37; 1916 38; 1917 39; 1918 40; 1919 41; 1920 42; 1924 46; 1925 47; 1927 49; 1928 50; 1929 51; 1930 52; 1931 53; 1932 54; 1933 55; 1934 56; 1935 57; 1936 58; 1937 59; 1938 60; 1948 66, 67; 1949 68; 1950 69, 70; 1951 71, 72; 1953 74; 1954 73; 1955 75; 1956 76; 1957 77; 1958 78; 1959 79; 1960 80; 1962 82; 1963 83; 1964 84; 1965 85; 1966 86; 1967 87; 1968 88; 1969 89; 1970 90; 1971 91; 1972 92(3,6-8); 1973 93; 1974 94; 1975 95(1-2); 1976 96; 1977 97; 1978 98; 1980 100; 1981 101; 1982 102; 1983 103; 1985 105; 1986 106; 1987 107; 1988 108; 1989 109; 1990 110; 1991 111; 1992 112; 1993 113; 1994 114
Classificação: 981.05A6 |
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