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| 122. | | FONTES, C. A. DE A.; BERNDT, A.; FRIGHETTO, R. T. S.; COSTA, V. A. C.; SIQUEIRA, J. G. DE; ZORZI, K.; PROCESSI, E. F.; VALENTE, T. N. P. Níveis de metano e perdas energéticas em bovinos de corte, suplementados ou não, em pastagem de capim Mombaça (Panicum Maximum cv. Mombaça). In: SOTTA, E. D.; SAMPAIO, F. G.; COSTA, M. de S. N. (org.). Coletânea de fatores de emissão e remoção de gases de efeito estufa da pecuária brasileira. Brasília, DF: MAPA: SENAR, 2020. p.72-73.| Biblioteca(s): Embrapa Meio Ambiente; Embrapa Pecuária Sudeste. |
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| 123. | | RESENDE, E. K.; QUEIROZ, J. F. de; FRIGHETTO, R. T. S.; LOSEKANN, M. E.; SILVA, C. A. da; PESSOA, M. C. P. Y. Manejo e gestão ambiental da aquicultura: bases tecnológicas para o desenvolvimento sustentável da aquicultura no Brasil. In: FÓRUM DE APRESENTAÇÃO DE RESULTADOS DE PESQUISA: AVANÇOS E OPORTUNIDADES, 1., 2014, Campinas. Anais... Jaguariúna: Embrapa Meio Ambiente, 2014. RE016. 8 p.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 124. | | RODRIGUES, G. S.; QUEIROZ, J. F. de; FRIGHETTO, R. T. S.; SAMPAIO, F. G.; FRASCÁ-SCORVO, C. M. D.; COUTO, K. R.; RODRIGUES, I. A. Best management practices and environmental management in aquaculture: indicators for monitoring in multiple scales. In: INTERNATIONAL WORKSHOP ADVANCES IN CLEANER PRODUCTION, 4., 2013, São Paulo. Integrating cleaner production into sustainability strategies: Anais... São Paulo: UNIP, 2013. 9 p.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 125. | | COSTA, F. de S.; BAYER, C.; LIMA, M. A. de; FRIGHETTO, R. T. S.; BOHNEN, H.; MACEDO, V. R. M.; MARCOLIN, E. Efeito estufa, metano e sistemas de cultivo irrigado no RS. Lavoura Arrozeira, Porto Alegre, v. 52, n. 436, p. 29-32, jul./set. 2004.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 126. | | TERAO, D.; NECHET, K. de L.; FRIGHETTO, R. T. S.; ANJOS, V. D. A.; BENATO, E. A.; HALFELD-VIEIRA, B. de A. Physical postharvest treatments in the control of stem-end rot of mango. Journal of Phytopathology, v. 166, n. 7-8, p. 581-589, 2018.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 127. | | SAN VITO, E.; LAGE, J. F.; MESSANA, J. D.; DALLANTONIA, E. E.; FRIGHETTO, R. T. S.; REIS, R. A.; NETO, A. J.; BERCHIELLI, T. T. Performance and methane emissions of grazing Nellore bulls supplemented with crude glycerin. Journal of Animal Science, v. 94, n. 11, P. 4728-4737, 2016.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 128. | | CARVALHO, I. P. C. de; FIORENTINI, G.; BERNDT, A.; CASTAGNINO, P. S.; MESSANA, J. D.; FRIGHETTO, R. T. S.; REIS, R. A.; BERCHIELLI, T. T. Performance and methane emissions of Nellore steers grazing tropical pasture supplemented with lipid sources. Revista Brasileira de Zootecnia, Viçosa, v. 45, n. 12, p. 760-767, 2016.| Biblioteca(s): Embrapa Meio Ambiente; Embrapa Pecuária Sudeste. |
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| 132. | | HABIBE, T. C.; NASCIMENTO, A. S. do; FRIGHETTO, R. T. S.; URAMOTO, K.; BRITO, D. B. de; SANTOS NETO, C. dos. Suscetibilidade de três cultivares de mamão (Carica papaya), infectados pelos vírus da meleira, ao ataque de Ceratitis capitata diptera: tephritidae. CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 20., 2004, Gramado. Resumos... Gramado: Sociedade Entomológica do Brasil, 2004. p. 389.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 133. | | PEDREIRA, M. dos S.; PRIMAVESI, O. M. A. S. P. R.; LIMA, M. A. de; FRIGHETTO, R. T. S.; OLIVEIRA, S. G. de; BERCHIELLI, T. T. Ruminal methane emission by dairy cattle in Southeast Brazil Scientia Agricola, Piracicaba, v. 66, n. 6, p. 742-750, dec. 2009.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| Registros recuperados : 214 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
09/01/2019 |
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Data da última atualização: |
09/01/2019 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CONGIO, G. F. S.; CHIAVEGATO, M. B.; BATALHA, C. D. A.; BERNDT, A.; FRIGHETTO, R. T. S.; SILVA, S. C. da. |
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Afiliação: |
Guilhermo F. de. S. Congio, USP; Marília B. Chiavegato, pós-doctouranda USP; Camila D. A. Batalha, USP; ALEXANDRE BERNDT, CPPSE; ROSA TOYOKO SHIRAISHI FRIGHETTO, CNPMA; Sila C. da Silva, USP. |
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Título: |
Effect of grazing frequency on enteric methane emissions, output of milk constituents and milk yield. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 54., 2017, Foz do Iguaçu, PR. Proceedings... Foz do Iguaçu, PR: SBZ, 2017. |
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Páginas: |
p. 587. |
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Idioma: |
Português |
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Conteúdo: |
Grazing management changes sward structure, affecting forage morphological characteristics and nutritive value, and ultimately animal performance and enteric methane (CH4) emissions. The objective of this study was to evaluate enteric methane emissions and animal performance of lactating dairy cows grazing elephant grass (Pennisetum purpureum Schum. cv. Cameroon). Treatments corresponded to strategies of rotational grazing characterized by two pre-grazing targets; 95% and maximum canopy light interception (LI95% and LIMax, respectively). Post-grazing target corresponded to 50% of the pre-grazing targets. Twenty-two midlactation Holstein × Jersey cows (488 ± 60 kg) were stratified by body weight, days in milk (126 ± 90 days), lactation number (2.3 ± 1.2), and daily milk yield (20.3 ± 2.6 kg d-1) in a completely randomized design (n = 11). The 2.5 ha experimental area was divided into two sets of 18 paddocks (700 m2). Concentrate was offered twice daily before milking based on the average milk production of each group (1 kg of concentrate:3 kg of milk). Enteric CH4 emissions were collected using the sulfur hexafluoride (SF6) tracer gas method. Dry matter intake (DMI) was determined using titanium dioxide as a marker. Sampling occurred during the grazing season from December 2015 to April 2016. Results were analyzed using the PROC MIXED of SAS (? = 0.05). There were no treatment effects on DMI (18.4 kg d-1, on average; P = 0.090) nor on daily CH4 emissions (304.9 g d-1 on average; P = 0.136). Therefore, there were no treatment effects on enteric CH4 emissions per unit of feed consumed (17.3 g CH4 kg DMI-1). However, cows grazing LI95% swards had greater milk (17.5 vs 14.6 kg d-1; P = 0.043), protein (0.55 vs 0.47 kg d-1; P = 0.029), fat (0.66 vs 0.55 kg d-1; P = 0.027), and milk solids yield (2.15 vs 1.79 kg d-1; P = 0.019). Consequently, the LI95% target resulted in lower enteric CH4 emissions per unit of milk produced (16.7 vs 23.4 g CH4 L-1, P = 0.002), per unit of milk protein (528.1 vs 703.5 g CH4 kg-1; P = 0.003), per unit of milk fat (437.9 vs 606.5 g CH4 kg-1; P = 0.001), and per unit of milk solids yield (135.2 vs 186.1 g CH4 kg-1; P = 0.001). Grazing management based on the LI95% pre-grazing target resulted in increased output of milk constituents and milk yield, whilst reducing CH4 emissions per unit of final product. These results are likely associated with increased forage nutritive value in LI95% swards, since no effects of pre-grazing targets were observed on DMI. MenosGrazing management changes sward structure, affecting forage morphological characteristics and nutritive value, and ultimately animal performance and enteric methane (CH4) emissions. The objective of this study was to evaluate enteric methane emissions and animal performance of lactating dairy cows grazing elephant grass (Pennisetum purpureum Schum. cv. Cameroon). Treatments corresponded to strategies of rotational grazing characterized by two pre-grazing targets; 95% and maximum canopy light interception (LI95% and LIMax, respectively). Post-grazing target corresponded to 50% of the pre-grazing targets. Twenty-two midlactation Holstein × Jersey cows (488 ± 60 kg) were stratified by body weight, days in milk (126 ± 90 days), lactation number (2.3 ± 1.2), and daily milk yield (20.3 ± 2.6 kg d-1) in a completely randomized design (n = 11). The 2.5 ha experimental area was divided into two sets of 18 paddocks (700 m2). Concentrate was offered twice daily before milking based on the average milk production of each group (1 kg of concentrate:3 kg of milk). Enteric CH4 emissions were collected using the sulfur hexafluoride (SF6) tracer gas method. Dry matter intake (DMI) was determined using titanium dioxide as a marker. Sampling occurred during the grazing season from December 2015 to April 2016. Results were analyzed using the PROC MIXED of SAS (? = 0.05). There were no treatment effects on DMI (18.4 kg d-1, on average; P = 0.090) nor on daily CH4 emissions (304.9 g d-1 on avera... Mostrar Tudo |
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Palavras-Chave: |
Light interception. |
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Thesagro: |
Metano; Pennisetum Purpureum; Vaca Leiteira. |
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Thesaurus NAL: |
Dairy cows; Emissions; Methane; Pennisetum. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/190029/1/RA-FrighettoRTS-54-RASBZ-2017-p587.pdf
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Marc: |
LEADER 03403nam a2200277 a 4500
001 2103344
005 2019-01-09
008 2018 bl uuuu u00u1 u #d
100 1 $aCONGIO, G. F. S.
245 $aEffect of grazing frequency on enteric methane emissions, output of milk constituents and milk yield.$h[electronic resource]
260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 54., 2017, Foz do Iguaçu, PR. Proceedings... Foz do Iguaçu, PR: SBZ$c2017
300 $ap. 587.
520 $aGrazing management changes sward structure, affecting forage morphological characteristics and nutritive value, and ultimately animal performance and enteric methane (CH4) emissions. The objective of this study was to evaluate enteric methane emissions and animal performance of lactating dairy cows grazing elephant grass (Pennisetum purpureum Schum. cv. Cameroon). Treatments corresponded to strategies of rotational grazing characterized by two pre-grazing targets; 95% and maximum canopy light interception (LI95% and LIMax, respectively). Post-grazing target corresponded to 50% of the pre-grazing targets. Twenty-two midlactation Holstein × Jersey cows (488 ± 60 kg) were stratified by body weight, days in milk (126 ± 90 days), lactation number (2.3 ± 1.2), and daily milk yield (20.3 ± 2.6 kg d-1) in a completely randomized design (n = 11). The 2.5 ha experimental area was divided into two sets of 18 paddocks (700 m2). Concentrate was offered twice daily before milking based on the average milk production of each group (1 kg of concentrate:3 kg of milk). Enteric CH4 emissions were collected using the sulfur hexafluoride (SF6) tracer gas method. Dry matter intake (DMI) was determined using titanium dioxide as a marker. Sampling occurred during the grazing season from December 2015 to April 2016. Results were analyzed using the PROC MIXED of SAS (? = 0.05). There were no treatment effects on DMI (18.4 kg d-1, on average; P = 0.090) nor on daily CH4 emissions (304.9 g d-1 on average; P = 0.136). Therefore, there were no treatment effects on enteric CH4 emissions per unit of feed consumed (17.3 g CH4 kg DMI-1). However, cows grazing LI95% swards had greater milk (17.5 vs 14.6 kg d-1; P = 0.043), protein (0.55 vs 0.47 kg d-1; P = 0.029), fat (0.66 vs 0.55 kg d-1; P = 0.027), and milk solids yield (2.15 vs 1.79 kg d-1; P = 0.019). Consequently, the LI95% target resulted in lower enteric CH4 emissions per unit of milk produced (16.7 vs 23.4 g CH4 L-1, P = 0.002), per unit of milk protein (528.1 vs 703.5 g CH4 kg-1; P = 0.003), per unit of milk fat (437.9 vs 606.5 g CH4 kg-1; P = 0.001), and per unit of milk solids yield (135.2 vs 186.1 g CH4 kg-1; P = 0.001). Grazing management based on the LI95% pre-grazing target resulted in increased output of milk constituents and milk yield, whilst reducing CH4 emissions per unit of final product. These results are likely associated with increased forage nutritive value in LI95% swards, since no effects of pre-grazing targets were observed on DMI.
650 $aDairy cows
650 $aEmissions
650 $aMethane
650 $aPennisetum
650 $aMetano
650 $aPennisetum Purpureum
650 $aVaca Leiteira
653 $aLight interception
700 1 $aCHIAVEGATO, M. B.
700 1 $aBATALHA, C. D. A.
700 1 $aBERNDT, A.
700 1 $aFRIGHETTO, R. T. S.
700 1 $aSILVA, S. C. da
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Embrapa Meio Ambiente (CNPMA) |
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