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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
03/05/2012 |
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Data da última atualização: |
22/02/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
HULSHOF, R. B. A.; BERNDT, A.; GERRITS, W. J. J.; DIJKSTRA, J.; ZIJDERVELD, S. M. van; NEWBOLD, J. R.; PERDOK, H. B. |
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Afiliação: |
R. B. A. HULSHOF, Research Centre De Viersprong; ALEXANDRE BERNDT, CPPSE; W. J. J. GERRITS, Wageningen University; J. DIJKSTRA, Wageningen University; S. M. VAN ZIJDERVELD, Research Centre De Viersprong; J.R. NEWBOLD, Research Centre De Viersprong; H. B. PERDOK, Research Centre De Viersprong. |
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Título: |
Dietary nitrate supplementation reduces methane emission in beef cattle fed sugarcane-based diets. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Journal of Animal Science, v. 90, n. 7, p. 2317-2323, jul. 2012. |
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DOI: |
10.2527/jas.2011-4209 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to determine the effect of dietary nitrate on methane emission and rumen fermentation parameters in Nellore x Guzera (Bos indicus) beef cattle fed a sugarcane based diet. The experiment was conducted with 16 steers weighing 283 ± 49 kg (mean ± SD), six rumen cannulated and ten intact, in a cross-over design. The animals were blocked according to body weight and presence or absence of rumen cannula and randomly allocated to either the nitrate diet (22 g nitrate/ kg DM) or the control diet made isonitrogenous by the addition of urea. The diets consisted of freshly chopped sugarcane and concentrate (60:40 on DM basis), fed as a mixed ration. A 16-d adaptation period was used to allow the rumen microbes to adapt to dietary nitrate. Methane emission was measured using the sulfur hexafluoride tracer technique. Dry matter intake (P = 0.09) tended to be lower when nitrate was present in the diet compared to the control, 6.60 and 7.05 kg DMI, respectively. The daily methane production was reduced (P < 0.01) by 32% when steers were fed the nitrate diet (85 g/d) compared with the urea diet (125 g/d). Methane emission per kg DMI was 27% lower (P < 0.01) on the nitrate diet (13.3 g methane/kg DMI) than on the control diet (18.2 g methane/kg DMI). Methane losses as a fraction of gross energy intake (GEI) were lower (P < 0.01) on the nitrate diet (4.2% of GEI) than on the control diet (5.9% of GEI). Nitrate mitigated enteric methane production by 87% of the theoretical potential. The rumen fluid ammonia-nitrogen (NH3-N) concentration was significantly greater (P < 0.05) for the nitrate diet. The total concentration of VFA was not affected by nitrate in the diet, whilst the proportion of acetic acid tended to be greater (P = 0.09), propionic acid lower (P = 0.06) and acetate/propionate ratio tended to be greater (P = 0.06) for the nitrate diet. Dietary nitrate reduced enteric methane emission in beef cattle fed sugarcane based diet. MenosThe objective of this study was to determine the effect of dietary nitrate on methane emission and rumen fermentation parameters in Nellore x Guzera (Bos indicus) beef cattle fed a sugarcane based diet. The experiment was conducted with 16 steers weighing 283 ± 49 kg (mean ± SD), six rumen cannulated and ten intact, in a cross-over design. The animals were blocked according to body weight and presence or absence of rumen cannula and randomly allocated to either the nitrate diet (22 g nitrate/ kg DM) or the control diet made isonitrogenous by the addition of urea. The diets consisted of freshly chopped sugarcane and concentrate (60:40 on DM basis), fed as a mixed ration. A 16-d adaptation period was used to allow the rumen microbes to adapt to dietary nitrate. Methane emission was measured using the sulfur hexafluoride tracer technique. Dry matter intake (P = 0.09) tended to be lower when nitrate was present in the diet compared to the control, 6.60 and 7.05 kg DMI, respectively. The daily methane production was reduced (P < 0.01) by 32% when steers were fed the nitrate diet (85 g/d) compared with the urea diet (125 g/d). Methane emission per kg DMI was 27% lower (P < 0.01) on the nitrate diet (13.3 g methane/kg DMI) than on the control diet (18.2 g methane/kg DMI). Methane losses as a fraction of gross energy intake (GEI) were lower (P < 0.01) on the nitrate diet (4.2% of GEI) than on the control diet (5.9% of GEI). Nitrate mitigated enteric methane production by 87% of the ... Mostrar Tudo |
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Palavras-Chave: |
Nitrate; Parameters sugarcane. |
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Thesagro: |
Rúmen. |
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Thesaurus Nal: |
beef cattle; methane; sulfur hexafluoride. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02809naa a2200277 a 4500
001 1923564
005 2023-02-22
008 2012 bl uuuu u00u1 u #d
024 7 $a10.2527/jas.2011-4209$2DOI
100 1 $aHULSHOF, R. B. A.
245 $aDietary nitrate supplementation reduces methane emission in beef cattle fed sugarcane-based diets.$h[electronic resource]
260 $c2012
520 $aThe objective of this study was to determine the effect of dietary nitrate on methane emission and rumen fermentation parameters in Nellore x Guzera (Bos indicus) beef cattle fed a sugarcane based diet. The experiment was conducted with 16 steers weighing 283 ± 49 kg (mean ± SD), six rumen cannulated and ten intact, in a cross-over design. The animals were blocked according to body weight and presence or absence of rumen cannula and randomly allocated to either the nitrate diet (22 g nitrate/ kg DM) or the control diet made isonitrogenous by the addition of urea. The diets consisted of freshly chopped sugarcane and concentrate (60:40 on DM basis), fed as a mixed ration. A 16-d adaptation period was used to allow the rumen microbes to adapt to dietary nitrate. Methane emission was measured using the sulfur hexafluoride tracer technique. Dry matter intake (P = 0.09) tended to be lower when nitrate was present in the diet compared to the control, 6.60 and 7.05 kg DMI, respectively. The daily methane production was reduced (P < 0.01) by 32% when steers were fed the nitrate diet (85 g/d) compared with the urea diet (125 g/d). Methane emission per kg DMI was 27% lower (P < 0.01) on the nitrate diet (13.3 g methane/kg DMI) than on the control diet (18.2 g methane/kg DMI). Methane losses as a fraction of gross energy intake (GEI) were lower (P < 0.01) on the nitrate diet (4.2% of GEI) than on the control diet (5.9% of GEI). Nitrate mitigated enteric methane production by 87% of the theoretical potential. The rumen fluid ammonia-nitrogen (NH3-N) concentration was significantly greater (P < 0.05) for the nitrate diet. The total concentration of VFA was not affected by nitrate in the diet, whilst the proportion of acetic acid tended to be greater (P = 0.09), propionic acid lower (P = 0.06) and acetate/propionate ratio tended to be greater (P = 0.06) for the nitrate diet. Dietary nitrate reduced enteric methane emission in beef cattle fed sugarcane based diet.
650 $abeef cattle
650 $amethane
650 $asulfur hexafluoride
650 $aRúmen
653 $aNitrate
653 $aParameters sugarcane
700 1 $aBERNDT, A.
700 1 $aGERRITS, W. J. J.
700 1 $aDIJKSTRA, J.
700 1 $aZIJDERVELD, S. M. van
700 1 $aNEWBOLD, J. R.
700 1 $aPERDOK, H. B.
773 $tJournal of Animal Science$gv. 90, n. 7, p. 2317-2323, jul. 2012.
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