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Registro Completo |
Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
27/06/1995 |
Data da última atualização: |
27/06/1995 |
Autoria: |
MARKHART, A. H.; NAYLOR, A. W. |
Título: |
Effect of valinomycin and gramicidin-D on the reflection coefficient of soybean root systems. |
Ano de publicação: |
1980 |
Fonte/Imprenta: |
Plant Physiol., v.65, n.1, p.74-77, 1980. |
Idioma: |
Português |
Thesagro: |
Soja. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00394naa a2200133 a 4500 001 1602124 005 1995-06-27 008 1980 bl --- 0-- u #d 100 1 $aMARKHART, A. H. 245 $aEffect of valinomycin and gramicidin-D on the reflection coefficient of soybean root systems. 260 $c1980 650 $aSoja 700 1 $aNAYLOR, A. W. 773 $tPlant Physiol.$gv.65, n.1, p.74-77, 1980.
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Embrapa Agrobiologia (CNPAB) |
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Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
20/12/2018 |
Data da última atualização: |
24/01/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
RANGEL, A. H. do N.; ARAÚJO, T. P. M.; LIMA, G. F. da C.; BORBA, L. H. F.; PEIXOTO, M. G. C. D.; LIMA JÚNIOR, D. M. de. |
Afiliação: |
ADRIANO HENRIQUE DO NASCIMENTO RANGEL, Universidade Federal do Rio Grande do Norte; THALITA POLYANA MONTEIRO ARAÚJO, Universidade Federal Rural de Pernambuco; GUILHERME FERREIRA DA COSTA LIMA, EMPARN; LUIZ HENRIQUE FERNANDES BORBA, Universidade Federal do Rio Grande do Norte; MARIA GABRIELA CAMPOLINA D PEIXOTO, CNPGL; DORGIVAL MORAIS DE LIMA JÚNIOR, Universidade Federal de Alagoas. |
Título: |
Estimation of genetic and phenotypic trends for dairy traits of Gyr and Guzerá breeds. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Acta Scientiarum. Animal Sciences, v. 40, e35685, 2018. |
Páginas: |
6 p. |
DOI: |
10.4025/actascianimsci.v40i1.36685 |
Idioma: |
Inglês |
Conteúdo: |
ABSTRACT Milk production has high economic importance in dairy cattle production systems, which justifies its inclusion in genetic breeding programs. The objective of this study was to evaluate the genetic and phenotypic trends of dairy traits in Gyr (167 lactations) and Guzerá (148 lactations) breeds in the State of Rio Grande do Norte (RN). Milk, fat and protein production obtained from monthly dairy controls were the traits evaluated. The expected differences in progeny (DEPs) for these traits were estimated using an animal model. From the means of phenotypic values and DEPs, we estimated the genetic and phenotypic trends in linear regressions as a function of the year of calving of the animal. Positive genetic and phenotypic trends were observed for Gyr (26.8 and 88.7 kg year-1) and Guzerá (8.44 and 37.68 kg year-1). Gyr breed presented positive genetic trends for fat (1.08 kg year-1) and protein (0.45 kg year-1) production and the Guzerá breed showed positive genetic trends for fat (0.36 kg year-1) and protein (0.25 kg year-1) production. The selection applied in the evaluated herds has produced satisfactory genetic and phenotypic progress for milk, fat and protein production. |
Palavras-Chave: |
Genetic progress; Selection. |
Thesaurus NAL: |
Milk production; Zebu. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/189185/1/Artigo-Acta-Scientiarum-Gabriela-Estimation.pdf
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Marc: |
LEADER 01963naa a2200253 a 4500 001 2102342 005 2023-01-24 008 2018 bl uuuu u00u1 u #d 024 7 $a10.4025/actascianimsci.v40i1.36685$2DOI 100 1 $aRANGEL, A. H. do N. 245 $aEstimation of genetic and phenotypic trends for dairy traits of Gyr and Guzerá breeds.$h[electronic resource] 260 $c2018 300 $a6 p. 520 $aABSTRACT Milk production has high economic importance in dairy cattle production systems, which justifies its inclusion in genetic breeding programs. The objective of this study was to evaluate the genetic and phenotypic trends of dairy traits in Gyr (167 lactations) and Guzerá (148 lactations) breeds in the State of Rio Grande do Norte (RN). Milk, fat and protein production obtained from monthly dairy controls were the traits evaluated. The expected differences in progeny (DEPs) for these traits were estimated using an animal model. From the means of phenotypic values and DEPs, we estimated the genetic and phenotypic trends in linear regressions as a function of the year of calving of the animal. Positive genetic and phenotypic trends were observed for Gyr (26.8 and 88.7 kg year-1) and Guzerá (8.44 and 37.68 kg year-1). Gyr breed presented positive genetic trends for fat (1.08 kg year-1) and protein (0.45 kg year-1) production and the Guzerá breed showed positive genetic trends for fat (0.36 kg year-1) and protein (0.25 kg year-1) production. The selection applied in the evaluated herds has produced satisfactory genetic and phenotypic progress for milk, fat and protein production. 650 $aMilk production 650 $aZebu 653 $aGenetic progress 653 $aSelection 700 1 $aARAÚJO, T. P. M. 700 1 $aLIMA, G. F. da C. 700 1 $aBORBA, L. H. F. 700 1 $aPEIXOTO, M. G. C. D. 700 1 $aLIMA JÚNIOR, D. M. de 773 $tActa Scientiarum. Animal Sciences$gv. 40, e35685, 2018.
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