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Registro Completo |
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
31/01/2017 |
Data da última atualização: |
20/07/2017 |
Tipo da produção científica: |
Nota Técnica/Nota Científica |
Autoria: |
LIMA, A. R. C.; FERNANDES, M. H. M. R.; TEIXEIRA, I. A. M. A.; FRIGHETTO, R. T. S.; BOMPADRE, T. F. V.; BIAGIOLI, B.; MEISTER, N. C.; RESENDE, K. T. de. |
Afiliação: |
ANA REBECA CASTRO LIMA, FCAV-UNESP; MARCIA HELENA MACHADO DA ROCHA FERNANDES, FCAV-UNESP; IZABELLE AUXILIADORA MOLINA DE ALMEIDA TEIXEIRA, FCAV-UNESP; ROSA TOYOKO SHIRAISHI FRIGHETTO, CNPMA; THIAGO FRANCISCO VENTOSO BOMPADRE, FCAV-UNESP; BRUNO BIAGIOLI, FCAV-UNESP; NAOMI CRISTINA MEISTER, FCAV-UNESP; KLEBER TOMAS DE RESENDE, FCAV-UNESP. |
Título: |
Effects of feed restriction and forage: concentrate ratio on digestibility, methane emission, and energy utilization by goats. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Revista Brasileira de Zootecnia, Viçosa, v. 45, n. 12, p. 781-787, 2016. |
DOI: |
http://dx.doi.org/10.1590/s1806-92902016001200008 |
Idioma: |
Inglês |
Conteúdo: |
This study was carried out to to evaluate how feed restriction and different forage:concentrate ratios affect digestibility, methane emission (using the SF6 technique), and energy utilization of Anglo-Nubian goats. Fifteen (15) dry and non-pregnant Anglo Nubian goats, averaging 30±2.9 kg body weight, were used. The experiment was divided into two trials, the first of which was designed to study the effects of feed restriction (0% or ad libitum; 15% of feed restriction or equivalent to 85% of ad libitum intake; and 40% of feed restriction or equivalent to 60% of ad libitum intake) and the second, to study the effects of forage:concentrate (F:C) ratios (75:25, 54:46, and 25:75) in the diet. The sulfur hexafluoride (SF6) tracer gas method was used to collect and estimate methane (CH4) emissions. Feed restriction level did not affect apparent total tract digestibility of dry matter (DM), organic matter, crude protein, and neutral detergent fiber. Methane emission (g d?1) decreased linearly as intake level decreased. However, energy loss in methane proportional to organic matter intake was similar among levels of feed restriction; consequently, dietary metabolizability did not differ among treatments. Methane gas (g d?1) as a function of F:C ratio revealed a quadratic response, showing the highest values when animals were fed the 46:54 F:C ratio diet (18.2 g d?1), suggesting that the decrease in absolute CH4 occurred when the level of concentrate inclusion in the diet surpassed approximately 50%. The results presented herein may be relevant for the ongoing and future efforts towards completion of an IPCC inventory regarding the contribution of goats to the greenhouse gas effects on the planet. MenosThis study was carried out to to evaluate how feed restriction and different forage:concentrate ratios affect digestibility, methane emission (using the SF6 technique), and energy utilization of Anglo-Nubian goats. Fifteen (15) dry and non-pregnant Anglo Nubian goats, averaging 30±2.9 kg body weight, were used. The experiment was divided into two trials, the first of which was designed to study the effects of feed restriction (0% or ad libitum; 15% of feed restriction or equivalent to 85% of ad libitum intake; and 40% of feed restriction or equivalent to 60% of ad libitum intake) and the second, to study the effects of forage:concentrate (F:C) ratios (75:25, 54:46, and 25:75) in the diet. The sulfur hexafluoride (SF6) tracer gas method was used to collect and estimate methane (CH4) emissions. Feed restriction level did not affect apparent total tract digestibility of dry matter (DM), organic matter, crude protein, and neutral detergent fiber. Methane emission (g d?1) decreased linearly as intake level decreased. However, energy loss in methane proportional to organic matter intake was similar among levels of feed restriction; consequently, dietary metabolizability did not differ among treatments. Methane gas (g d?1) as a function of F:C ratio revealed a quadratic response, showing the highest values when animals were fed the 46:54 F:C ratio diet (18.2 g d?1), suggesting that the decrease in absolute CH4 occurred when the level of concentrate inclusion in the diet surpassed a... Mostrar Tudo |
Palavras-Chave: |
Emissão de gases; Gass emissions; SF6. |
Thesagro: |
Cabra; Efeito estufa; Metano; Nutrição animal. |
Thesaurus Nal: |
Animal nutrition; Goats; Greenhouse gases; Restricted feeding; Ruminants. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/154379/1/2016NT01.pdf
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Marc: |
LEADER 02821naa a2200361 a 4500 001 2062312 005 2017-07-20 008 2016 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1590/s1806-92902016001200008$2DOI 100 1 $aLIMA, A. R. C. 245 $aEffects of feed restriction and forage$bconcentrate ratio on digestibility, methane emission, and energy utilization by goats.$h[electronic resource] 260 $c2016 520 $aThis study was carried out to to evaluate how feed restriction and different forage:concentrate ratios affect digestibility, methane emission (using the SF6 technique), and energy utilization of Anglo-Nubian goats. Fifteen (15) dry and non-pregnant Anglo Nubian goats, averaging 30±2.9 kg body weight, were used. The experiment was divided into two trials, the first of which was designed to study the effects of feed restriction (0% or ad libitum; 15% of feed restriction or equivalent to 85% of ad libitum intake; and 40% of feed restriction or equivalent to 60% of ad libitum intake) and the second, to study the effects of forage:concentrate (F:C) ratios (75:25, 54:46, and 25:75) in the diet. The sulfur hexafluoride (SF6) tracer gas method was used to collect and estimate methane (CH4) emissions. Feed restriction level did not affect apparent total tract digestibility of dry matter (DM), organic matter, crude protein, and neutral detergent fiber. Methane emission (g d?1) decreased linearly as intake level decreased. However, energy loss in methane proportional to organic matter intake was similar among levels of feed restriction; consequently, dietary metabolizability did not differ among treatments. Methane gas (g d?1) as a function of F:C ratio revealed a quadratic response, showing the highest values when animals were fed the 46:54 F:C ratio diet (18.2 g d?1), suggesting that the decrease in absolute CH4 occurred when the level of concentrate inclusion in the diet surpassed approximately 50%. The results presented herein may be relevant for the ongoing and future efforts towards completion of an IPCC inventory regarding the contribution of goats to the greenhouse gas effects on the planet. 650 $aAnimal nutrition 650 $aGoats 650 $aGreenhouse gases 650 $aRestricted feeding 650 $aRuminants 650 $aCabra 650 $aEfeito estufa 650 $aMetano 650 $aNutrição animal 653 $aEmissão de gases 653 $aGass emissions 653 $aSF6 700 1 $aFERNANDES, M. H. M. R. 700 1 $aTEIXEIRA, I. A. M. A. 700 1 $aFRIGHETTO, R. T. S. 700 1 $aBOMPADRE, T. F. V. 700 1 $aBIAGIOLI, B. 700 1 $aMEISTER, N. C. 700 1 $aRESENDE, K. T. de 773 $tRevista Brasileira de Zootecnia, Viçosa$gv. 45, n. 12, p. 781-787, 2016.
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Embrapa Meio Ambiente (CNPMA) |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
Data corrente: |
05/04/2011 |
Data da última atualização: |
13/11/2014 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
SOUZA, A. C. G. de; MARTINS, G. C. |
Afiliação: |
GILVAN COIMBRA MARTINS, CPAA. |
Título: |
Monitoramento dos atributos químicos e físicos de áreas de diferentes idades de reflorestamento na Província Petrolífera de Urucu, Coari, AM. |
Ano de publicação: |
2010 |
Fonte/Imprenta: |
In: JORNADA DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA OCIDENTAL, 6., 2010, Manaus. Anais... Manaus: Embrapa Amazônia Ocidental, 2010. p. 143-149. |
Idioma: |
Português |
Conteúdo: |
Este estudo objetivou monitorar os atributos físicos e químicos de áreas de diferentes idades de reflorestamento na Província Petrolífera de Urucu, Coari - AM. |
Palavras-Chave: |
Clareira; Densidade do solo; Estabilidade de agregados. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/111596/1/VI-Jornada-IC-145-151.pdf
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Marc: |
LEADER 00831nam a2200157 a 4500 001 1885007 005 2014-11-13 008 2010 bl uuuu u00u1 u #d 100 1 $aSOUZA, A. C. G. de 245 $aMonitoramento dos atributos químicos e físicos de áreas de diferentes idades de reflorestamento na Província Petrolífera de Urucu, Coari, AM.$h[electronic resource] 260 $aIn: JORNADA DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA OCIDENTAL, 6., 2010, Manaus. Anais... Manaus: Embrapa Amazônia Ocidental, 2010. p. 143-149.$c2010 520 $aEste estudo objetivou monitorar os atributos físicos e químicos de áreas de diferentes idades de reflorestamento na Província Petrolífera de Urucu, Coari - AM. 653 $aClareira 653 $aDensidade do solo 653 $aEstabilidade de agregados 700 1 $aMARTINS, G. C.
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