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Registro Completo |
Biblioteca(s): |
Embrapa Meio-Norte. |
Data corrente: |
10/12/2008 |
Data da última atualização: |
06/05/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ANDRADE, F. A. O. de; AZEVÊDO, A. R. de; SALES, R. de O.; ARRUDA, F. de A. V.; SOUZA, P. Z. |
Afiliação: |
FRANCISCO DE ASSIS VASCONCELOS ARRUDA, CPAMN. |
Título: |
Consumo de nutrientes por ovinos alimentados com diferentes dietas à base de resíduos da agroindústria. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
Revista Científica de Produção Animal, Teresina, v. 3, n. 1, p. 68-76, 2001. |
Idioma: |
Português |
Thesagro: |
Consumo; Nutriente; Ovino; Resíduo. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/118846/1/RCPAv3n1p68.pdf
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Marc: |
LEADER 00628naa a2200205 a 4500 001 1070366 005 2023-05-06 008 2001 bl uuuu u00u1 u #d 100 1 $aANDRADE, F. A. O. de 245 $aConsumo de nutrientes por ovinos alimentados com diferentes dietas à base de resíduos da agroindústria. 260 $c2001 650 $aConsumo 650 $aNutriente 650 $aOvino 650 $aResíduo 700 1 $aAZEVÊDO, A. R. de 700 1 $aSALES, R. de O. 700 1 $aARRUDA, F. de A. V. 700 1 $aSOUZA, P. Z. 773 $tRevista Científica de Produção Animal, Teresina$gv. 3, n. 1, p. 68-76, 2001.
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Embrapa Meio-Norte (CPAMN) |
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Registro Completo
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
14/01/2010 |
Data da última atualização: |
02/06/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
PEDREIRA, M. S.; PRIMAVESI, O.; LIMA, M. A. de; FRIGHETTO, R. T. S.; OLIVEIRA, S. G. de; BERCHIELLI, T. T. |
Afiliação: |
MÁRIO DOS SANTOS PEDREIRA, UESB; ODO PRIMAVESI, CPPSE; MAGDA APARECIDA DE LIMA, CNPMA; ROSA TOYOKO SHIRAISHI FRIGHETTO, CNPMA; SIMONE GISELE DE OLIVEIRA, UFPR; TELMA TERESINHA BERCHIELLI, FCAV/UNESP. |
Título: |
Ruminal methane emission by dairy cattle in southeast Brazil. |
Ano de publicação: |
2009 |
Fonte/Imprenta: |
Scientia Agricola, Piracicaba, v. 66, n. 6, p. 742-750, 2009. |
Idioma: |
Inglês |
Conteúdo: |
ABSTRACT: Ruminal gases, particularly methane, generated during the fermentative process in rumen, represent a partial loss of feed energy and are also pointed to as an important factors in greenhouse effect. This study aimed at quantifying methane (CH 4) emission rates from lactating and dry cows and heifers, 24 month-old in average, on pasture under Southeast Brazil tropical conditions, using the tracer gas technique, sulphur hexafluoride (SF 6), four animals per category, distributed in four blocks. Measurements were performed in February and June, 2002, with Holstein and Brazilian Dairy Crossbred (Holstein ¾ x Gir (Zebu) ¼), maintained on fertilized Tanzania-grass (Panicum maximum Jacq. cv. Tanzania) and fertilized Brachiaria-grass (Brachiaria decumbens cv. Basilisk) pastures. Heifers of both breeds were maintained on unfertilized Brachiaria-grass to simulate conditions of extensive cattle farming systems. CH 4 and SF 6 levels were measured with gas chromatography. Differences in CH4 emissions were measured (p < 0.05) for genetical groups. Holstein produced more methane (299.3g day?1) than the Crossbred (264.2 g day?1). Lactating cows produced more methane (353.8 g day?1) than dry cows (268.8 g day?1) and heifers (222.6 g day?1). Holstein, with greater milk production potential, produced less CH4 (p < 0.05) per unit of dry matter intake (19.1 g kg?1) than the Crossbred (22.0 g kg?1). Methane emission by heifers grazing fertilized pasture (intensive system) was 222.6 g day?1, greater (p < 0.05) than that of heifers on unfertilized pasture (179.2 g day?1). Methane emission varied as function of animal category and management intensity of production system. MenosABSTRACT: Ruminal gases, particularly methane, generated during the fermentative process in rumen, represent a partial loss of feed energy and are also pointed to as an important factors in greenhouse effect. This study aimed at quantifying methane (CH 4) emission rates from lactating and dry cows and heifers, 24 month-old in average, on pasture under Southeast Brazil tropical conditions, using the tracer gas technique, sulphur hexafluoride (SF 6), four animals per category, distributed in four blocks. Measurements were performed in February and June, 2002, with Holstein and Brazilian Dairy Crossbred (Holstein ¾ x Gir (Zebu) ¼), maintained on fertilized Tanzania-grass (Panicum maximum Jacq. cv. Tanzania) and fertilized Brachiaria-grass (Brachiaria decumbens cv. Basilisk) pastures. Heifers of both breeds were maintained on unfertilized Brachiaria-grass to simulate conditions of extensive cattle farming systems. CH 4 and SF 6 levels were measured with gas chromatography. Differences in CH4 emissions were measured (p < 0.05) for genetical groups. Holstein produced more methane (299.3g day?1) than the Crossbred (264.2 g day?1). Lactating cows produced more methane (353.8 g day?1) than dry cows (268.8 g day?1) and heifers (222.6 g day?1). Holstein, with greater milk production potential, produced less CH4 (p < 0.05) per unit of dry matter intake (19.1 g kg?1) than the Crossbred (22.0 g kg?1). Methane emission by heifers grazing fertilized pasture (intensive system) was 222.6 g da... Mostrar Tudo |
Thesagro: |
Metano; Pecuária. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/143782/1/2009AP-11.pdf
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Marc: |
LEADER 02280naa a2200205 a 4500 001 1580379 005 2016-06-02 008 2009 bl uuuu u00u1 u #d 100 1 $aPEDREIRA, M. S. 245 $aRuminal methane emission by dairy cattle in southeast Brazil.$h[electronic resource] 260 $c2009 520 $aABSTRACT: Ruminal gases, particularly methane, generated during the fermentative process in rumen, represent a partial loss of feed energy and are also pointed to as an important factors in greenhouse effect. This study aimed at quantifying methane (CH 4) emission rates from lactating and dry cows and heifers, 24 month-old in average, on pasture under Southeast Brazil tropical conditions, using the tracer gas technique, sulphur hexafluoride (SF 6), four animals per category, distributed in four blocks. Measurements were performed in February and June, 2002, with Holstein and Brazilian Dairy Crossbred (Holstein ¾ x Gir (Zebu) ¼), maintained on fertilized Tanzania-grass (Panicum maximum Jacq. cv. Tanzania) and fertilized Brachiaria-grass (Brachiaria decumbens cv. Basilisk) pastures. Heifers of both breeds were maintained on unfertilized Brachiaria-grass to simulate conditions of extensive cattle farming systems. CH 4 and SF 6 levels were measured with gas chromatography. Differences in CH4 emissions were measured (p < 0.05) for genetical groups. Holstein produced more methane (299.3g day?1) than the Crossbred (264.2 g day?1). Lactating cows produced more methane (353.8 g day?1) than dry cows (268.8 g day?1) and heifers (222.6 g day?1). Holstein, with greater milk production potential, produced less CH4 (p < 0.05) per unit of dry matter intake (19.1 g kg?1) than the Crossbred (22.0 g kg?1). Methane emission by heifers grazing fertilized pasture (intensive system) was 222.6 g day?1, greater (p < 0.05) than that of heifers on unfertilized pasture (179.2 g day?1). Methane emission varied as function of animal category and management intensity of production system. 650 $aMetano 650 $aPecuária 700 1 $aPRIMAVESI, O. 700 1 $aLIMA, M. A. de 700 1 $aFRIGHETTO, R. T. S. 700 1 $aOLIVEIRA, S. G. de 700 1 $aBERCHIELLI, T. T. 773 $tScientia Agricola, Piracicaba$gv. 66, n. 6, p. 742-750, 2009.
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