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Registro Completo |
Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
Data corrente: |
04/01/2007 |
Data da última atualização: |
04/07/2022 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
CARNEIRO, M. |
Título: |
Transgênicos: desafios e oportunidades. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
Fitopatologia Brasileira, v. 31, supl., p. 35-36, ago. 2006. Anais do: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 39.; ANNUAL MEETING OF THE BRAZILIAN PHYTOPATHOLOGICAL SOCIETY, 39., 2006, Salvador, BA. |
Idioma: |
Português |
Palavras-Chave: |
Transgênicos. |
Thesagro: |
Agronegócio; Biotecnologia. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00541nam a2200133 a 4500 001 1188218 005 2022-07-04 008 2006 bl uuuu u00u1 u #d 100 1 $aCARNEIRO, M. 245 $aTransgênicos$bdesafios e oportunidades.$h[electronic resource] 260 $aFitopatologia Brasileira, v. 31, supl., p. 35-36, ago. 2006. Anais do: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 39.; ANNUAL MEETING OF THE BRAZILIAN PHYTOPATHOLOGICAL SOCIETY, 39., 2006, Salvador, BA.$c2006 650 $aAgronegócio 650 $aBiotecnologia 653 $aTransgênicos
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
03/04/2019 |
Data da última atualização: |
20/11/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
GRANJA-SALCEDO, Y. T.; FERNANDES, R. M.; ARAUJO, R. C. de; KISHI, L. T.; BERCHIELLI, T. T.; RESENDE, F. D. de; BERNDT, A.; SIQUEIRA, G. R. |
Afiliação: |
Yury Tatiana Granja-Salcedo, UNESP; Rodolfo Maciel Fernandes, UNESP/Agência Paulista de Tecnologia dos Agronegócios; Rafael Canonenco de Araujo, GRASP; Luciano Takeshi Kishi, UNESP; Telma Teresinha Berchielli, UNESP; Flávio Dutra de Resende, UNESP; ALEXANDRE BERNDT, CPPSE; Gustavo Rezende Siqueira, UNESP/Agência Paulista de Tecnologia dos Agronegócios. |
Título: |
Long-Term encapsulated nitrate supplementation modulates rumen microbial diversity and rumen fermentation to reduce methane emission in grazing steers. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Frontiers in microbiology, v. 10, n. 614, p. 1-12, 2019. |
Idioma: |
Inglês |
Conteúdo: |
This study investigated the long-term effects (13 months) of encapsulated nitrate supplementation (ENS) on enteric methane emissions, rumen fermentation parameters, ruminal bacteria, and diversity of archaea in grazing beef cattle. We used a total of thirty-two Nellore steers (initial BW of 197 15.3 kg), 12 of which were fitted with rumen cannulas. For 13 months, the animals were maintained in 12 paddocks and fed a concentrate of ground corn, soybean meals, mineral supplements, and urea (URS) or encapsulated nitrate (EN) containing 70 g of EN/100 kg of BW (corresponding to 47 g NO3/100 kg BW). Encapsulated nitrate supplementation resulted in similar forage, supplement and total DMI values as URS (P > 0.05), but ENS tended to increase (C48 g/d; P = 0.055) average daily weight gain. Daily reductions in methane emissions (- 9.54 g or 18.5%) were observed with ENS when expressed as g of CH4/kg of forage dry matter intake (fDMI) (P = 0.037). Lower concentrations of NH3-N and a higher ruminal pH were observed in ENS groups 6 h after supplementation (P < 0.05). Total VFA rumen concentration 6 h (P = 0.009) and 12 h after supplementation with EN resulted in lower acetate concentrations in the rumen (P = 0.041). Steers supplemented with EN had a greater ruminal abundance of Bacteroides, Barnesiella, Lactobacillus, Selenomonas, Veillonella, Succinimonas, Succinivibrio, and Duganella sp. (P < 0.05), but a lower abundance of Methanobrevibacter sp. (P = 0.007). Strong negative correlations were found between daily methane emissions and Proteobacteria, Erysipelotrichaceae, Prevotellaceae, and Roseburia, Kandleria, Selenomonas, Veillonella, and Succinivibrio sp. (P < 0.05) in the rumen of ENS steers. Encapsulated nitrate is a feed additive that persistently affects enteric methane emission in grazing steers, thereby decreasing Methanobrevibacter abundance in the rumen. In addition, ENS can promote fumarate-reducer and lactateproducer bacteria, thereby reducing acetate production during rumen fermentation. MenosThis study investigated the long-term effects (13 months) of encapsulated nitrate supplementation (ENS) on enteric methane emissions, rumen fermentation parameters, ruminal bacteria, and diversity of archaea in grazing beef cattle. We used a total of thirty-two Nellore steers (initial BW of 197 15.3 kg), 12 of which were fitted with rumen cannulas. For 13 months, the animals were maintained in 12 paddocks and fed a concentrate of ground corn, soybean meals, mineral supplements, and urea (URS) or encapsulated nitrate (EN) containing 70 g of EN/100 kg of BW (corresponding to 47 g NO3/100 kg BW). Encapsulated nitrate supplementation resulted in similar forage, supplement and total DMI values as URS (P > 0.05), but ENS tended to increase (C48 g/d; P = 0.055) average daily weight gain. Daily reductions in methane emissions (- 9.54 g or 18.5%) were observed with ENS when expressed as g of CH4/kg of forage dry matter intake (fDMI) (P = 0.037). Lower concentrations of NH3-N and a higher ruminal pH were observed in ENS groups 6 h after supplementation (P < 0.05). Total VFA rumen concentration 6 h (P = 0.009) and 12 h after supplementation with EN resulted in lower acetate concentrations in the rumen (P = 0.041). Steers supplemented with EN had a greater ruminal abundance of Bacteroides, Barnesiella, Lactobacillus, Selenomonas, Veillonella, Succinimonas, Succinivibrio, and Duganella sp. (P < 0.05), but a lower abundance of Methanobrevibacter sp. (P = 0.007). Strong negative correlatio... Mostrar Tudo |
Palavras-Chave: |
Archaea diversity; Enteric methane emission. |
Thesagro: |
Gado de Corte; Nitrato. |
Thesaurus NAL: |
Beef cattle; Fatty acids; Rumen bacteria. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/195343/1/Long-Term-Encapsulated-Nitrate.pdf
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Marc: |
LEADER 02933naa a2200289 a 4500 001 2107883 005 2019-11-20 008 2019 bl uuuu u00u1 u #d 100 1 $aGRANJA-SALCEDO, Y. T. 245 $aLong-Term encapsulated nitrate supplementation modulates rumen microbial diversity and rumen fermentation to reduce methane emission in grazing steers.$h[electronic resource] 260 $c2019 520 $aThis study investigated the long-term effects (13 months) of encapsulated nitrate supplementation (ENS) on enteric methane emissions, rumen fermentation parameters, ruminal bacteria, and diversity of archaea in grazing beef cattle. We used a total of thirty-two Nellore steers (initial BW of 197 15.3 kg), 12 of which were fitted with rumen cannulas. For 13 months, the animals were maintained in 12 paddocks and fed a concentrate of ground corn, soybean meals, mineral supplements, and urea (URS) or encapsulated nitrate (EN) containing 70 g of EN/100 kg of BW (corresponding to 47 g NO3/100 kg BW). Encapsulated nitrate supplementation resulted in similar forage, supplement and total DMI values as URS (P > 0.05), but ENS tended to increase (C48 g/d; P = 0.055) average daily weight gain. Daily reductions in methane emissions (- 9.54 g or 18.5%) were observed with ENS when expressed as g of CH4/kg of forage dry matter intake (fDMI) (P = 0.037). Lower concentrations of NH3-N and a higher ruminal pH were observed in ENS groups 6 h after supplementation (P < 0.05). Total VFA rumen concentration 6 h (P = 0.009) and 12 h after supplementation with EN resulted in lower acetate concentrations in the rumen (P = 0.041). Steers supplemented with EN had a greater ruminal abundance of Bacteroides, Barnesiella, Lactobacillus, Selenomonas, Veillonella, Succinimonas, Succinivibrio, and Duganella sp. (P < 0.05), but a lower abundance of Methanobrevibacter sp. (P = 0.007). Strong negative correlations were found between daily methane emissions and Proteobacteria, Erysipelotrichaceae, Prevotellaceae, and Roseburia, Kandleria, Selenomonas, Veillonella, and Succinivibrio sp. (P < 0.05) in the rumen of ENS steers. Encapsulated nitrate is a feed additive that persistently affects enteric methane emission in grazing steers, thereby decreasing Methanobrevibacter abundance in the rumen. In addition, ENS can promote fumarate-reducer and lactateproducer bacteria, thereby reducing acetate production during rumen fermentation. 650 $aBeef cattle 650 $aFatty acids 650 $aRumen bacteria 650 $aGado de Corte 650 $aNitrato 653 $aArchaea diversity 653 $aEnteric methane emission 700 1 $aFERNANDES, R. M. 700 1 $aARAUJO, R. C. de 700 1 $aKISHI, L. T. 700 1 $aBERCHIELLI, T. T. 700 1 $aRESENDE, F. D. de 700 1 $aBERNDT, A. 700 1 $aSIQUEIRA, G. R. 773 $tFrontiers in microbiology$gv. 10, n. 614, p. 1-12, 2019.
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