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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
22/11/2002 |
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Data da última atualização: |
22/11/2002 |
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Autoria: |
WELLS, T. C. E. |
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Título: |
The creation of species-rich grasslands. |
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Ano de publicação: |
1983 |
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Fonte/Imprenta: |
In: WARREN, A.; GOLDSMITH, F.B. Conservation in perspective. New York: J. Wiley, 1983. |
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Páginas: |
p. 215-232 |
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ISBN: |
0 471 10321 7 |
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Idioma: |
Inglês |
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Conteúdo: |
The British Isles contain a great variety of ecosystems of which almost all are, to a greater or lasser extent, influenced by man. The extent to which the natural vegetation has been modified or changed is constantly being reappraised (see Sheail, Chapter 18), but there can be little doubt that man and his grazing animals have played an important part in the formation of all our native grasslands. When and how these were formed is still very much a subject for debate. In his classic work The British Isles and their Vegetation, Tansley (1953) described the chalk downlands `as having been used as sheep-walks for many centuries and probably from Neolithic times' and from this arose the view, still widely held, that most if not all of our floristically rich ... |
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Thesagro: |
Conservação; Ecologia; Meio Ambiente. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01261naa a2200181 a 4500
001 1327628
005 2002-11-22
008 1983 bl uuuu u00u1 u #d
020 $a0 471 10321 7
100 1 $aWELLS, T. C. E.
245 $aThe creation of species-rich grasslands.
260 $c1983
300 $ap. 215-232
520 $aThe British Isles contain a great variety of ecosystems of which almost all are, to a greater or lasser extent, influenced by man. The extent to which the natural vegetation has been modified or changed is constantly being reappraised (see Sheail, Chapter 18), but there can be little doubt that man and his grazing animals have played an important part in the formation of all our native grasslands. When and how these were formed is still very much a subject for debate. In his classic work The British Isles and their Vegetation, Tansley (1953) described the chalk downlands `as having been used as sheep-walks for many centuries and probably from Neolithic times' and from this arose the view, still widely held, that most if not all of our floristically rich ...
650 $aConservação
650 $aEcologia
650 $aMeio Ambiente
773 $tIn: WARREN, A.; GOLDSMITH, F.B. Conservation in perspective. New York: J. Wiley, 1983.
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Embrapa Solos (CNPS) |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
25/11/2016 |
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Data da última atualização: |
06/02/2024 |
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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: |
LAGE, L. A.; LOPES, M. A.; LOPES, F. C. F.; GAMA, M. A. S. da; RIBEIRO, C. G. S.; RODRIGUEZ, N. M.; DEMEU, F. A. |
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Afiliação: |
Luciana Andrade Lage, UFLA; Marcos Aurélio Lopes, UFLA; FERNANDO CESAR FERRAZ LOPES, CNPGL; MARCO ANTONIO SUNDFELD DA GAMA, CNPGL; Carlos Gustavo Santos Ribeiro, IFMT; Norberto Mario Rodriguez, UFMG; Fabiana Alves Demeu, CAPES / UFLA. |
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Título: |
Economic feasibility of adding sunflower oil to elephant grass-based diets of lactating dairy cows. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Semina: Ciências Agrárias, v. 37, n. 4, p. 2313-2320, 2016. |
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Idioma: |
Inglês |
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Notas: |
Supp. 1. |
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Conteúdo: |
We aimed to evaluate the economic feasibility of adding increasing levels of sunflower oil (0.0, 15, 30, and 45 g/kg of dry matter) to elephant grass (Pennisetum purpureum, Schum) based diets of milkproducing Holstein cows. Data were obtained and analyzed for 12 primiparous Holstein cows that produced on average 16.5 ± 2.8 kg of milk/day, at 95 ± 25 days of lactation. Cows were distributed by milk production, order of lactation, and body weight in a 4 × 4 triple Latin square. Isoproteic diets were provided ad libitum in the form of a forage:concentrate ratio of 60:40, on a dry matter basis. Daily milk production was recorded and milk was analyzed for fat, protein, and fatty acids contents. An economic feasibility study was performed considering the price of the supplied ingredients and the daily intake of each diet. The economic benefit was derived by the determining the difference between income from the sale of milk and the cost of animal feed. The quality-based payment was estimated by averaging the systems used by eight dairy companies, based on fat and protein contents and milk volume. The sunflower oil-free diet provided the greatest economic benefit. Adding sunflower oil to elephant grassbased diets was not economically viable because of its associated costs. |
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Thesaurus NAL: |
dairy cattle; economics; milk quality; nutrition. |
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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/150635/1/Cnpgl-2016-Semina-Economic.pdf
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Marc: |
LEADER 02020naa a2200253 a 4500
001 2057196
005 2024-02-06
008 2016 bl uuuu u00u1 u #d
100 1 $aLAGE, L. A.
245 $aEconomic feasibility of adding sunflower oil to elephant grass-based diets of lactating dairy cows.$h[electronic resource]
260 $c2016
500 $aSupp. 1.
520 $aWe aimed to evaluate the economic feasibility of adding increasing levels of sunflower oil (0.0, 15, 30, and 45 g/kg of dry matter) to elephant grass (Pennisetum purpureum, Schum) based diets of milkproducing Holstein cows. Data were obtained and analyzed for 12 primiparous Holstein cows that produced on average 16.5 ± 2.8 kg of milk/day, at 95 ± 25 days of lactation. Cows were distributed by milk production, order of lactation, and body weight in a 4 × 4 triple Latin square. Isoproteic diets were provided ad libitum in the form of a forage:concentrate ratio of 60:40, on a dry matter basis. Daily milk production was recorded and milk was analyzed for fat, protein, and fatty acids contents. An economic feasibility study was performed considering the price of the supplied ingredients and the daily intake of each diet. The economic benefit was derived by the determining the difference between income from the sale of milk and the cost of animal feed. The quality-based payment was estimated by averaging the systems used by eight dairy companies, based on fat and protein contents and milk volume. The sunflower oil-free diet provided the greatest economic benefit. Adding sunflower oil to elephant grassbased diets was not economically viable because of its associated costs.
650 $adairy cattle
650 $aeconomics
650 $amilk quality
650 $anutrition
700 1 $aLOPES, M. A.
700 1 $aLOPES, F. C. F.
700 1 $aGAMA, M. A. S. da
700 1 $aRIBEIRO, C. G. S.
700 1 $aRODRIGUEZ, N. M.
700 1 $aDEMEU, F. A.
773 $tSemina: Ciências Agrárias$gv. 37, n. 4, p. 2313-2320, 2016.
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