Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes

The aim of this study was to evaluate nutritional value, fermentation losses, and aerobic stability of elephant grass silage (Pennisetum purpureum Schum.) treated with exogenous fibrolytic enzymes. The experiment was conducted in a completely randomized design with four replicates (experimental silo...
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Autor*in:	Maikon Figueredo Lemos [verfasserIn] Alexandro Pereira Andrade [verfasserIn] Pedro Henrique Ferreira da Silva [verfasserIn] Camila Oliveira Santos [verfasserIn] Caio Felipe Barros Souza [verfasserIn] Marcos Antonio Vanderlei Silva [verfasserIn] Aurielle Silva Medeiros [verfasserIn] Pedro Mouzinho de Oliveira Neto [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2020

Schlagwörter:	aerobic deterioration; digestibility; effluent losses; dry matter recovery.

Übergeordnetes Werk:	In: Acta Scientiarum: Animal Sciences - Editora da Universidade Estadual de Maringá (Eduem), 2008, 42(2020), Seite e48272-e48272
Übergeordnetes Werk:	volume:42 ; year:2020 ; pages:e48272-e48272

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc Journal toc

DOI / URN:	10.4025/actascianimsci.v42i1.48272

Katalog-ID:	DOAJ051526891

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allfields	10.4025/actascianimsci.v42i1.48272 doi (DE-627)DOAJ051526891 (DE-599)DOAJ7f782fec188e4095b69006c289e26c08 DE-627 ger DE-627 rakwb eng SF1-1100 Maikon Figueredo Lemos verfasserin aut Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The aim of this study was to evaluate nutritional value, fermentation losses, and aerobic stability of elephant grass silage (Pennisetum purpureum Schum.) treated with exogenous fibrolytic enzymes. The experiment was conducted in a completely randomized design with four replicates (experimental silos) and five levels of fibrolytic enzymes (0, 1.5, 3.0, 4.5 and 6.0%). For this, the elephant grass was ensiled at 70 days of age in plastic buckets with 20L capacity. Silos were opened 60 days after sealing. Analyses were made for chemical composition, in vitro dry matter digestibility (IVDMD), effluent losses (EL), gas losses (GL) and dry matter recovery (DMR), as well as the aerobic stability of the silage. Data were analyzed with PROC REG of SAS® University, at 5% probability. There was an increase in IVDMD content (p < 0.0001) and reduction in NDF and ADF contents (p < 0.0001) according to enzyme levels. These results were related to the increase in the degradation of fiber fractions. There were higher EL (p = 0.0062) as a function of enzyme levels and aerobic deterioration after silo opening, at all levels tested. Thus, it can be concluded that the exogenous fibrolytic enzymes change the chemical composition of elephant grass silage, and increase its digestibility and nutritional value. Moreover, when used alone as an additive, fibrolytic enzymes are not able to recover all dry matter of this silage (with effluent and gas losses), and are not able to maintain aerobic stability in the first hours after opening the silos. aerobic deterioration; digestibility; effluent losses; dry matter recovery. Animal culture Alexandro Pereira Andrade verfasserin aut Pedro Henrique Ferreira da Silva verfasserin aut Camila Oliveira Santos verfasserin aut Caio Felipe Barros Souza verfasserin aut Marcos Antonio Vanderlei Silva verfasserin aut Aurielle Silva Medeiros verfasserin aut Pedro Mouzinho de Oliveira Neto verfasserin aut In Acta Scientiarum: Animal Sciences Editora da Universidade Estadual de Maringá (Eduem), 2008 42(2020), Seite e48272-e48272 (DE-627)627247059 (DE-600)2555935-7 18078672 nnns volume:42 year:2020 pages:e48272-e48272 https://doi.org/10.4025/actascianimsci.v42i1.48272 kostenfrei https://doaj.org/article/7f782fec188e4095b69006c289e26c08 kostenfrei http://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48272 kostenfrei https://doaj.org/toc/1806-2636 Journal toc kostenfrei https://doaj.org/toc/1807-8672 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 42 2020 e48272-e48272
spelling	10.4025/actascianimsci.v42i1.48272 doi (DE-627)DOAJ051526891 (DE-599)DOAJ7f782fec188e4095b69006c289e26c08 DE-627 ger DE-627 rakwb eng SF1-1100 Maikon Figueredo Lemos verfasserin aut Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The aim of this study was to evaluate nutritional value, fermentation losses, and aerobic stability of elephant grass silage (Pennisetum purpureum Schum.) treated with exogenous fibrolytic enzymes. The experiment was conducted in a completely randomized design with four replicates (experimental silos) and five levels of fibrolytic enzymes (0, 1.5, 3.0, 4.5 and 6.0%). For this, the elephant grass was ensiled at 70 days of age in plastic buckets with 20L capacity. Silos were opened 60 days after sealing. Analyses were made for chemical composition, in vitro dry matter digestibility (IVDMD), effluent losses (EL), gas losses (GL) and dry matter recovery (DMR), as well as the aerobic stability of the silage. Data were analyzed with PROC REG of SAS® University, at 5% probability. There was an increase in IVDMD content (p < 0.0001) and reduction in NDF and ADF contents (p < 0.0001) according to enzyme levels. These results were related to the increase in the degradation of fiber fractions. There were higher EL (p = 0.0062) as a function of enzyme levels and aerobic deterioration after silo opening, at all levels tested. Thus, it can be concluded that the exogenous fibrolytic enzymes change the chemical composition of elephant grass silage, and increase its digestibility and nutritional value. Moreover, when used alone as an additive, fibrolytic enzymes are not able to recover all dry matter of this silage (with effluent and gas losses), and are not able to maintain aerobic stability in the first hours after opening the silos. aerobic deterioration; digestibility; effluent losses; dry matter recovery. Animal culture Alexandro Pereira Andrade verfasserin aut Pedro Henrique Ferreira da Silva verfasserin aut Camila Oliveira Santos verfasserin aut Caio Felipe Barros Souza verfasserin aut Marcos Antonio Vanderlei Silva verfasserin aut Aurielle Silva Medeiros verfasserin aut Pedro Mouzinho de Oliveira Neto verfasserin aut In Acta Scientiarum: Animal Sciences Editora da Universidade Estadual de Maringá (Eduem), 2008 42(2020), Seite e48272-e48272 (DE-627)627247059 (DE-600)2555935-7 18078672 nnns volume:42 year:2020 pages:e48272-e48272 https://doi.org/10.4025/actascianimsci.v42i1.48272 kostenfrei https://doaj.org/article/7f782fec188e4095b69006c289e26c08 kostenfrei http://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48272 kostenfrei https://doaj.org/toc/1806-2636 Journal toc kostenfrei https://doaj.org/toc/1807-8672 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 42 2020 e48272-e48272
allfields_unstemmed	10.4025/actascianimsci.v42i1.48272 doi (DE-627)DOAJ051526891 (DE-599)DOAJ7f782fec188e4095b69006c289e26c08 DE-627 ger DE-627 rakwb eng SF1-1100 Maikon Figueredo Lemos verfasserin aut Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The aim of this study was to evaluate nutritional value, fermentation losses, and aerobic stability of elephant grass silage (Pennisetum purpureum Schum.) treated with exogenous fibrolytic enzymes. The experiment was conducted in a completely randomized design with four replicates (experimental silos) and five levels of fibrolytic enzymes (0, 1.5, 3.0, 4.5 and 6.0%). For this, the elephant grass was ensiled at 70 days of age in plastic buckets with 20L capacity. Silos were opened 60 days after sealing. Analyses were made for chemical composition, in vitro dry matter digestibility (IVDMD), effluent losses (EL), gas losses (GL) and dry matter recovery (DMR), as well as the aerobic stability of the silage. Data were analyzed with PROC REG of SAS® University, at 5% probability. There was an increase in IVDMD content (p < 0.0001) and reduction in NDF and ADF contents (p < 0.0001) according to enzyme levels. These results were related to the increase in the degradation of fiber fractions. There were higher EL (p = 0.0062) as a function of enzyme levels and aerobic deterioration after silo opening, at all levels tested. Thus, it can be concluded that the exogenous fibrolytic enzymes change the chemical composition of elephant grass silage, and increase its digestibility and nutritional value. Moreover, when used alone as an additive, fibrolytic enzymes are not able to recover all dry matter of this silage (with effluent and gas losses), and are not able to maintain aerobic stability in the first hours after opening the silos. aerobic deterioration; digestibility; effluent losses; dry matter recovery. Animal culture Alexandro Pereira Andrade verfasserin aut Pedro Henrique Ferreira da Silva verfasserin aut Camila Oliveira Santos verfasserin aut Caio Felipe Barros Souza verfasserin aut Marcos Antonio Vanderlei Silva verfasserin aut Aurielle Silva Medeiros verfasserin aut Pedro Mouzinho de Oliveira Neto verfasserin aut In Acta Scientiarum: Animal Sciences Editora da Universidade Estadual de Maringá (Eduem), 2008 42(2020), Seite e48272-e48272 (DE-627)627247059 (DE-600)2555935-7 18078672 nnns volume:42 year:2020 pages:e48272-e48272 https://doi.org/10.4025/actascianimsci.v42i1.48272 kostenfrei https://doaj.org/article/7f782fec188e4095b69006c289e26c08 kostenfrei http://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48272 kostenfrei https://doaj.org/toc/1806-2636 Journal toc kostenfrei https://doaj.org/toc/1807-8672 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 42 2020 e48272-e48272
allfieldsGer	10.4025/actascianimsci.v42i1.48272 doi (DE-627)DOAJ051526891 (DE-599)DOAJ7f782fec188e4095b69006c289e26c08 DE-627 ger DE-627 rakwb eng SF1-1100 Maikon Figueredo Lemos verfasserin aut Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The aim of this study was to evaluate nutritional value, fermentation losses, and aerobic stability of elephant grass silage (Pennisetum purpureum Schum.) treated with exogenous fibrolytic enzymes. The experiment was conducted in a completely randomized design with four replicates (experimental silos) and five levels of fibrolytic enzymes (0, 1.5, 3.0, 4.5 and 6.0%). For this, the elephant grass was ensiled at 70 days of age in plastic buckets with 20L capacity. Silos were opened 60 days after sealing. Analyses were made for chemical composition, in vitro dry matter digestibility (IVDMD), effluent losses (EL), gas losses (GL) and dry matter recovery (DMR), as well as the aerobic stability of the silage. Data were analyzed with PROC REG of SAS® University, at 5% probability. There was an increase in IVDMD content (p < 0.0001) and reduction in NDF and ADF contents (p < 0.0001) according to enzyme levels. These results were related to the increase in the degradation of fiber fractions. There were higher EL (p = 0.0062) as a function of enzyme levels and aerobic deterioration after silo opening, at all levels tested. Thus, it can be concluded that the exogenous fibrolytic enzymes change the chemical composition of elephant grass silage, and increase its digestibility and nutritional value. Moreover, when used alone as an additive, fibrolytic enzymes are not able to recover all dry matter of this silage (with effluent and gas losses), and are not able to maintain aerobic stability in the first hours after opening the silos. aerobic deterioration; digestibility; effluent losses; dry matter recovery. Animal culture Alexandro Pereira Andrade verfasserin aut Pedro Henrique Ferreira da Silva verfasserin aut Camila Oliveira Santos verfasserin aut Caio Felipe Barros Souza verfasserin aut Marcos Antonio Vanderlei Silva verfasserin aut Aurielle Silva Medeiros verfasserin aut Pedro Mouzinho de Oliveira Neto verfasserin aut In Acta Scientiarum: Animal Sciences Editora da Universidade Estadual de Maringá (Eduem), 2008 42(2020), Seite e48272-e48272 (DE-627)627247059 (DE-600)2555935-7 18078672 nnns volume:42 year:2020 pages:e48272-e48272 https://doi.org/10.4025/actascianimsci.v42i1.48272 kostenfrei https://doaj.org/article/7f782fec188e4095b69006c289e26c08 kostenfrei http://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48272 kostenfrei https://doaj.org/toc/1806-2636 Journal toc kostenfrei https://doaj.org/toc/1807-8672 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 42 2020 e48272-e48272
allfieldsSound	10.4025/actascianimsci.v42i1.48272 doi (DE-627)DOAJ051526891 (DE-599)DOAJ7f782fec188e4095b69006c289e26c08 DE-627 ger DE-627 rakwb eng SF1-1100 Maikon Figueredo Lemos verfasserin aut Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The aim of this study was to evaluate nutritional value, fermentation losses, and aerobic stability of elephant grass silage (Pennisetum purpureum Schum.) treated with exogenous fibrolytic enzymes. The experiment was conducted in a completely randomized design with four replicates (experimental silos) and five levels of fibrolytic enzymes (0, 1.5, 3.0, 4.5 and 6.0%). For this, the elephant grass was ensiled at 70 days of age in plastic buckets with 20L capacity. Silos were opened 60 days after sealing. Analyses were made for chemical composition, in vitro dry matter digestibility (IVDMD), effluent losses (EL), gas losses (GL) and dry matter recovery (DMR), as well as the aerobic stability of the silage. Data were analyzed with PROC REG of SAS® University, at 5% probability. There was an increase in IVDMD content (p < 0.0001) and reduction in NDF and ADF contents (p < 0.0001) according to enzyme levels. These results were related to the increase in the degradation of fiber fractions. There were higher EL (p = 0.0062) as a function of enzyme levels and aerobic deterioration after silo opening, at all levels tested. Thus, it can be concluded that the exogenous fibrolytic enzymes change the chemical composition of elephant grass silage, and increase its digestibility and nutritional value. Moreover, when used alone as an additive, fibrolytic enzymes are not able to recover all dry matter of this silage (with effluent and gas losses), and are not able to maintain aerobic stability in the first hours after opening the silos. aerobic deterioration; digestibility; effluent losses; dry matter recovery. Animal culture Alexandro Pereira Andrade verfasserin aut Pedro Henrique Ferreira da Silva verfasserin aut Camila Oliveira Santos verfasserin aut Caio Felipe Barros Souza verfasserin aut Marcos Antonio Vanderlei Silva verfasserin aut Aurielle Silva Medeiros verfasserin aut Pedro Mouzinho de Oliveira Neto verfasserin aut In Acta Scientiarum: Animal Sciences Editora da Universidade Estadual de Maringá (Eduem), 2008 42(2020), Seite e48272-e48272 (DE-627)627247059 (DE-600)2555935-7 18078672 nnns volume:42 year:2020 pages:e48272-e48272 https://doi.org/10.4025/actascianimsci.v42i1.48272 kostenfrei https://doaj.org/article/7f782fec188e4095b69006c289e26c08 kostenfrei http://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48272 kostenfrei https://doaj.org/toc/1806-2636 Journal toc kostenfrei https://doaj.org/toc/1807-8672 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 42 2020 e48272-e48272
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source	In Acta Scientiarum: Animal Sciences 42(2020), Seite e48272-e48272 volume:42 year:2020 pages:e48272-e48272
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title	Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes
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title_full	Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes
author_sort	Maikon Figueredo Lemos
journal	Acta Scientiarum: Animal Sciences
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author_browse	Maikon Figueredo Lemos Alexandro Pereira Andrade Pedro Henrique Ferreira da Silva Camila Oliveira Santos Caio Felipe Barros Souza Marcos Antonio Vanderlei Silva Aurielle Silva Medeiros Pedro Mouzinho de Oliveira Neto
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doi_str_mv	10.4025/actascianimsci.v42i1.48272
author2-role	verfasserin
title_sort	nutritional value, fermentation losses and aerobic stability of elephant grass (pennisetum purpureum schum.) silage treated with exogenous fibrolytic enzymes
callnumber	SF1-1100
title_auth	Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes
abstract	The aim of this study was to evaluate nutritional value, fermentation losses, and aerobic stability of elephant grass silage (Pennisetum purpureum Schum.) treated with exogenous fibrolytic enzymes. The experiment was conducted in a completely randomized design with four replicates (experimental silos) and five levels of fibrolytic enzymes (0, 1.5, 3.0, 4.5 and 6.0%). For this, the elephant grass was ensiled at 70 days of age in plastic buckets with 20L capacity. Silos were opened 60 days after sealing. Analyses were made for chemical composition, in vitro dry matter digestibility (IVDMD), effluent losses (EL), gas losses (GL) and dry matter recovery (DMR), as well as the aerobic stability of the silage. Data were analyzed with PROC REG of SAS® University, at 5% probability. There was an increase in IVDMD content (p < 0.0001) and reduction in NDF and ADF contents (p < 0.0001) according to enzyme levels. These results were related to the increase in the degradation of fiber fractions. There were higher EL (p = 0.0062) as a function of enzyme levels and aerobic deterioration after silo opening, at all levels tested. Thus, it can be concluded that the exogenous fibrolytic enzymes change the chemical composition of elephant grass silage, and increase its digestibility and nutritional value. Moreover, when used alone as an additive, fibrolytic enzymes are not able to recover all dry matter of this silage (with effluent and gas losses), and are not able to maintain aerobic stability in the first hours after opening the silos.
abstractGer	The aim of this study was to evaluate nutritional value, fermentation losses, and aerobic stability of elephant grass silage (Pennisetum purpureum Schum.) treated with exogenous fibrolytic enzymes. The experiment was conducted in a completely randomized design with four replicates (experimental silos) and five levels of fibrolytic enzymes (0, 1.5, 3.0, 4.5 and 6.0%). For this, the elephant grass was ensiled at 70 days of age in plastic buckets with 20L capacity. Silos were opened 60 days after sealing. Analyses were made for chemical composition, in vitro dry matter digestibility (IVDMD), effluent losses (EL), gas losses (GL) and dry matter recovery (DMR), as well as the aerobic stability of the silage. Data were analyzed with PROC REG of SAS® University, at 5% probability. There was an increase in IVDMD content (p < 0.0001) and reduction in NDF and ADF contents (p < 0.0001) according to enzyme levels. These results were related to the increase in the degradation of fiber fractions. There were higher EL (p = 0.0062) as a function of enzyme levels and aerobic deterioration after silo opening, at all levels tested. Thus, it can be concluded that the exogenous fibrolytic enzymes change the chemical composition of elephant grass silage, and increase its digestibility and nutritional value. Moreover, when used alone as an additive, fibrolytic enzymes are not able to recover all dry matter of this silage (with effluent and gas losses), and are not able to maintain aerobic stability in the first hours after opening the silos.
abstract_unstemmed	The aim of this study was to evaluate nutritional value, fermentation losses, and aerobic stability of elephant grass silage (Pennisetum purpureum Schum.) treated with exogenous fibrolytic enzymes. The experiment was conducted in a completely randomized design with four replicates (experimental silos) and five levels of fibrolytic enzymes (0, 1.5, 3.0, 4.5 and 6.0%). For this, the elephant grass was ensiled at 70 days of age in plastic buckets with 20L capacity. Silos were opened 60 days after sealing. Analyses were made for chemical composition, in vitro dry matter digestibility (IVDMD), effluent losses (EL), gas losses (GL) and dry matter recovery (DMR), as well as the aerobic stability of the silage. Data were analyzed with PROC REG of SAS® University, at 5% probability. There was an increase in IVDMD content (p < 0.0001) and reduction in NDF and ADF contents (p < 0.0001) according to enzyme levels. These results were related to the increase in the degradation of fiber fractions. There were higher EL (p = 0.0062) as a function of enzyme levels and aerobic deterioration after silo opening, at all levels tested. Thus, it can be concluded that the exogenous fibrolytic enzymes change the chemical composition of elephant grass silage, and increase its digestibility and nutritional value. Moreover, when used alone as an additive, fibrolytic enzymes are not able to recover all dry matter of this silage (with effluent and gas losses), and are not able to maintain aerobic stability in the first hours after opening the silos.
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title_short	Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes
url	https://doi.org/10.4025/actascianimsci.v42i1.48272 https://doaj.org/article/7f782fec188e4095b69006c289e26c08 http://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48272 https://doaj.org/toc/1806-2636 https://doaj.org/toc/1807-8672
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author2	Alexandro Pereira Andrade Pedro Henrique Ferreira da Silva Camila Oliveira Santos Caio Felipe Barros Souza Marcos Antonio Vanderlei Silva Aurielle Silva Medeiros Pedro Mouzinho de Oliveira Neto
author2Str	Alexandro Pereira Andrade Pedro Henrique Ferreira da Silva Camila Oliveira Santos Caio Felipe Barros Souza Marcos Antonio Vanderlei Silva Aurielle Silva Medeiros Pedro Mouzinho de Oliveira Neto
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up_date	2024-07-03T20:52:06.515Z
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Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes

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