Simulation of rumen fermentation kinetics of by-products from the biodiesel industry with in vitro gas production technique

<p<The objective of this study was to investigate the rumen fermentation kinetics of 18 by-products from the biodiesel industry exhibiting potential for use in the feeding of ruminants via the <em<in vitro </em<gas production technique. The following feeds were investigated: cotton...
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Gespeichert in:

Autor*in:	Alex Lopes da Silva [verfasserIn] Marcos Inácio Marcondes [verfasserIn] Cristina Mattos Veloso [verfasserIn] Fernanda Campos de Sousa [verfasserIn] Leonardo Sidney Knupp [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch ; Portugiesisch

Erschienen:	2015

Schlagwörter:	Degradation rate Fibrous carbohydrates Non-fibrous carbohydrates Ruminants.

Übergeordnetes Werk:	In: Semina: Ciências Agrárias - Universidade Estadual de Londrina, 2010, 36(2015), 6, Seite 3851-3862
Übergeordnetes Werk:	volume:36 ; year:2015 ; number:6 ; pages:3851-3862

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

DOI / URN:	10.5433/1679-0359.2015v36n6p3851

Katalog-ID:	DOAJ06459534X

Internformat


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allfields	10.5433/1679-0359.2015v36n6p3851 doi (DE-627)DOAJ06459534X (DE-599)DOAJ8abd3f707c9b44e6810b750f3dfa132e DE-627 ger DE-627 rakwb eng por S1-972 Alex Lopes da Silva verfasserin aut Simulation of rumen fermentation kinetics of by-products from the biodiesel industry with in vitro gas production technique 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier <p<The objective of this study was to investigate the rumen fermentation kinetics of 18 by-products from the biodiesel industry exhibiting potential for use in the feeding of ruminants via the <em<in vitro </em<gas production technique. The following feeds were investigated: cottonseed, <em<canudo de pito</em<, crambe, sunflower, castor seed (detoxified with lime) and soybean meals and cottonseed, peanut, babassu, crambe, palm kernel, sunflower, licuri nut, macaúba, forage radish and jatropha cakes. The evaluated parameters were total gas production (VfT), gas production from fibrous carbohydrates (VfFC), gas production from non-fibrous carbohydrates (VfNFC), the degradation rate of fibrous carbohydrates (kdFC), the degradation rate of non-fibrous carbohydrates (kdNFC) and lag time (lag). The feeds were grouped into six different groups according to rumen fermentation kinetic parameters and adopting an R2 of 0.8. Forage radish cake and the meals of cottonseed, soybean, crambe and sunflower composed the first group, while the cakes of babassu and sunflower formed the second group. Canudo de pito and castor seed meals and the cakes of cottonseed, licuri and jatropha I and II formed the third group. The fourth group was composed by the cakes of crambe, palm kernel and peanut I. The fifth group was formed by peanut cake II, while macauba fruit cake formed the sixth group. The VfNFC and VfFC varied from 16.72 to 200.07 mL and from 53.09 to 242.12 mL, respectively. The mean kdFC and kdNFC values varied from 0.002 to 0.039% h-1and from 0.022 to 0.430% h-1, respectively. The mean lag and VfT varied from 0.0001 to 5.2029 hours and 136.94 to 301.44 mL, respectively. A number of the products exhibited the potential to replace soybean meal, especially the forage radish cake and cottonseed, crambe and sunflower meals.</p< Degradation rate Fibrous carbohydrates Non-fibrous carbohydrates Ruminants. Agriculture (General) Marcos Inácio Marcondes verfasserin aut Cristina Mattos Veloso verfasserin aut Fernanda Campos de Sousa verfasserin aut Leonardo Sidney Knupp verfasserin aut In Semina: Ciências Agrárias Universidade Estadual de Londrina, 2010 36(2015), 6, Seite 3851-3862 (DE-627)625424700 (DE-600)2551446-5 16790359 nnns volume:36 year:2015 number:6 pages:3851-3862 https://doi.org/10.5433/1679-0359.2015v36n6p3851 kostenfrei https://doaj.org/article/8abd3f707c9b44e6810b750f3dfa132e kostenfrei http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/19386 kostenfrei https://doaj.org/toc/1676-546X Journal toc kostenfrei https://doaj.org/toc/1679-0359 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 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_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 36 2015 6 3851-3862
spelling	10.5433/1679-0359.2015v36n6p3851 doi (DE-627)DOAJ06459534X (DE-599)DOAJ8abd3f707c9b44e6810b750f3dfa132e DE-627 ger DE-627 rakwb eng por S1-972 Alex Lopes da Silva verfasserin aut Simulation of rumen fermentation kinetics of by-products from the biodiesel industry with in vitro gas production technique 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier <p<The objective of this study was to investigate the rumen fermentation kinetics of 18 by-products from the biodiesel industry exhibiting potential for use in the feeding of ruminants via the <em<in vitro </em<gas production technique. The following feeds were investigated: cottonseed, <em<canudo de pito</em<, crambe, sunflower, castor seed (detoxified with lime) and soybean meals and cottonseed, peanut, babassu, crambe, palm kernel, sunflower, licuri nut, macaúba, forage radish and jatropha cakes. The evaluated parameters were total gas production (VfT), gas production from fibrous carbohydrates (VfFC), gas production from non-fibrous carbohydrates (VfNFC), the degradation rate of fibrous carbohydrates (kdFC), the degradation rate of non-fibrous carbohydrates (kdNFC) and lag time (lag). The feeds were grouped into six different groups according to rumen fermentation kinetic parameters and adopting an R2 of 0.8. Forage radish cake and the meals of cottonseed, soybean, crambe and sunflower composed the first group, while the cakes of babassu and sunflower formed the second group. Canudo de pito and castor seed meals and the cakes of cottonseed, licuri and jatropha I and II formed the third group. The fourth group was composed by the cakes of crambe, palm kernel and peanut I. The fifth group was formed by peanut cake II, while macauba fruit cake formed the sixth group. The VfNFC and VfFC varied from 16.72 to 200.07 mL and from 53.09 to 242.12 mL, respectively. The mean kdFC and kdNFC values varied from 0.002 to 0.039% h-1and from 0.022 to 0.430% h-1, respectively. The mean lag and VfT varied from 0.0001 to 5.2029 hours and 136.94 to 301.44 mL, respectively. A number of the products exhibited the potential to replace soybean meal, especially the forage radish cake and cottonseed, crambe and sunflower meals.</p< Degradation rate Fibrous carbohydrates Non-fibrous carbohydrates Ruminants. Agriculture (General) Marcos Inácio Marcondes verfasserin aut Cristina Mattos Veloso verfasserin aut Fernanda Campos de Sousa verfasserin aut Leonardo Sidney Knupp verfasserin aut In Semina: Ciências Agrárias Universidade Estadual de Londrina, 2010 36(2015), 6, Seite 3851-3862 (DE-627)625424700 (DE-600)2551446-5 16790359 nnns volume:36 year:2015 number:6 pages:3851-3862 https://doi.org/10.5433/1679-0359.2015v36n6p3851 kostenfrei https://doaj.org/article/8abd3f707c9b44e6810b750f3dfa132e kostenfrei http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/19386 kostenfrei https://doaj.org/toc/1676-546X Journal toc kostenfrei https://doaj.org/toc/1679-0359 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 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_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 36 2015 6 3851-3862
allfields_unstemmed	10.5433/1679-0359.2015v36n6p3851 doi (DE-627)DOAJ06459534X (DE-599)DOAJ8abd3f707c9b44e6810b750f3dfa132e DE-627 ger DE-627 rakwb eng por S1-972 Alex Lopes da Silva verfasserin aut Simulation of rumen fermentation kinetics of by-products from the biodiesel industry with in vitro gas production technique 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier <p<The objective of this study was to investigate the rumen fermentation kinetics of 18 by-products from the biodiesel industry exhibiting potential for use in the feeding of ruminants via the <em<in vitro </em<gas production technique. The following feeds were investigated: cottonseed, <em<canudo de pito</em<, crambe, sunflower, castor seed (detoxified with lime) and soybean meals and cottonseed, peanut, babassu, crambe, palm kernel, sunflower, licuri nut, macaúba, forage radish and jatropha cakes. The evaluated parameters were total gas production (VfT), gas production from fibrous carbohydrates (VfFC), gas production from non-fibrous carbohydrates (VfNFC), the degradation rate of fibrous carbohydrates (kdFC), the degradation rate of non-fibrous carbohydrates (kdNFC) and lag time (lag). The feeds were grouped into six different groups according to rumen fermentation kinetic parameters and adopting an R2 of 0.8. Forage radish cake and the meals of cottonseed, soybean, crambe and sunflower composed the first group, while the cakes of babassu and sunflower formed the second group. Canudo de pito and castor seed meals and the cakes of cottonseed, licuri and jatropha I and II formed the third group. The fourth group was composed by the cakes of crambe, palm kernel and peanut I. The fifth group was formed by peanut cake II, while macauba fruit cake formed the sixth group. The VfNFC and VfFC varied from 16.72 to 200.07 mL and from 53.09 to 242.12 mL, respectively. The mean kdFC and kdNFC values varied from 0.002 to 0.039% h-1and from 0.022 to 0.430% h-1, respectively. The mean lag and VfT varied from 0.0001 to 5.2029 hours and 136.94 to 301.44 mL, respectively. A number of the products exhibited the potential to replace soybean meal, especially the forage radish cake and cottonseed, crambe and sunflower meals.</p< Degradation rate Fibrous carbohydrates Non-fibrous carbohydrates Ruminants. Agriculture (General) Marcos Inácio Marcondes verfasserin aut Cristina Mattos Veloso verfasserin aut Fernanda Campos de Sousa verfasserin aut Leonardo Sidney Knupp verfasserin aut In Semina: Ciências Agrárias Universidade Estadual de Londrina, 2010 36(2015), 6, Seite 3851-3862 (DE-627)625424700 (DE-600)2551446-5 16790359 nnns volume:36 year:2015 number:6 pages:3851-3862 https://doi.org/10.5433/1679-0359.2015v36n6p3851 kostenfrei https://doaj.org/article/8abd3f707c9b44e6810b750f3dfa132e kostenfrei http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/19386 kostenfrei https://doaj.org/toc/1676-546X Journal toc kostenfrei https://doaj.org/toc/1679-0359 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 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_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 36 2015 6 3851-3862
allfieldsGer	10.5433/1679-0359.2015v36n6p3851 doi (DE-627)DOAJ06459534X (DE-599)DOAJ8abd3f707c9b44e6810b750f3dfa132e DE-627 ger DE-627 rakwb eng por S1-972 Alex Lopes da Silva verfasserin aut Simulation of rumen fermentation kinetics of by-products from the biodiesel industry with in vitro gas production technique 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier <p<The objective of this study was to investigate the rumen fermentation kinetics of 18 by-products from the biodiesel industry exhibiting potential for use in the feeding of ruminants via the <em<in vitro </em<gas production technique. The following feeds were investigated: cottonseed, <em<canudo de pito</em<, crambe, sunflower, castor seed (detoxified with lime) and soybean meals and cottonseed, peanut, babassu, crambe, palm kernel, sunflower, licuri nut, macaúba, forage radish and jatropha cakes. The evaluated parameters were total gas production (VfT), gas production from fibrous carbohydrates (VfFC), gas production from non-fibrous carbohydrates (VfNFC), the degradation rate of fibrous carbohydrates (kdFC), the degradation rate of non-fibrous carbohydrates (kdNFC) and lag time (lag). The feeds were grouped into six different groups according to rumen fermentation kinetic parameters and adopting an R2 of 0.8. Forage radish cake and the meals of cottonseed, soybean, crambe and sunflower composed the first group, while the cakes of babassu and sunflower formed the second group. Canudo de pito and castor seed meals and the cakes of cottonseed, licuri and jatropha I and II formed the third group. The fourth group was composed by the cakes of crambe, palm kernel and peanut I. The fifth group was formed by peanut cake II, while macauba fruit cake formed the sixth group. The VfNFC and VfFC varied from 16.72 to 200.07 mL and from 53.09 to 242.12 mL, respectively. The mean kdFC and kdNFC values varied from 0.002 to 0.039% h-1and from 0.022 to 0.430% h-1, respectively. The mean lag and VfT varied from 0.0001 to 5.2029 hours and 136.94 to 301.44 mL, respectively. A number of the products exhibited the potential to replace soybean meal, especially the forage radish cake and cottonseed, crambe and sunflower meals.</p< Degradation rate Fibrous carbohydrates Non-fibrous carbohydrates Ruminants. Agriculture (General) Marcos Inácio Marcondes verfasserin aut Cristina Mattos Veloso verfasserin aut Fernanda Campos de Sousa verfasserin aut Leonardo Sidney Knupp verfasserin aut In Semina: Ciências Agrárias Universidade Estadual de Londrina, 2010 36(2015), 6, Seite 3851-3862 (DE-627)625424700 (DE-600)2551446-5 16790359 nnns volume:36 year:2015 number:6 pages:3851-3862 https://doi.org/10.5433/1679-0359.2015v36n6p3851 kostenfrei https://doaj.org/article/8abd3f707c9b44e6810b750f3dfa132e kostenfrei http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/19386 kostenfrei https://doaj.org/toc/1676-546X Journal toc kostenfrei https://doaj.org/toc/1679-0359 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 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_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 36 2015 6 3851-3862
allfieldsSound	10.5433/1679-0359.2015v36n6p3851 doi (DE-627)DOAJ06459534X (DE-599)DOAJ8abd3f707c9b44e6810b750f3dfa132e DE-627 ger DE-627 rakwb eng por S1-972 Alex Lopes da Silva verfasserin aut Simulation of rumen fermentation kinetics of by-products from the biodiesel industry with in vitro gas production technique 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier <p<The objective of this study was to investigate the rumen fermentation kinetics of 18 by-products from the biodiesel industry exhibiting potential for use in the feeding of ruminants via the <em<in vitro </em<gas production technique. The following feeds were investigated: cottonseed, <em<canudo de pito</em<, crambe, sunflower, castor seed (detoxified with lime) and soybean meals and cottonseed, peanut, babassu, crambe, palm kernel, sunflower, licuri nut, macaúba, forage radish and jatropha cakes. The evaluated parameters were total gas production (VfT), gas production from fibrous carbohydrates (VfFC), gas production from non-fibrous carbohydrates (VfNFC), the degradation rate of fibrous carbohydrates (kdFC), the degradation rate of non-fibrous carbohydrates (kdNFC) and lag time (lag). The feeds were grouped into six different groups according to rumen fermentation kinetic parameters and adopting an R2 of 0.8. Forage radish cake and the meals of cottonseed, soybean, crambe and sunflower composed the first group, while the cakes of babassu and sunflower formed the second group. Canudo de pito and castor seed meals and the cakes of cottonseed, licuri and jatropha I and II formed the third group. The fourth group was composed by the cakes of crambe, palm kernel and peanut I. The fifth group was formed by peanut cake II, while macauba fruit cake formed the sixth group. The VfNFC and VfFC varied from 16.72 to 200.07 mL and from 53.09 to 242.12 mL, respectively. The mean kdFC and kdNFC values varied from 0.002 to 0.039% h-1and from 0.022 to 0.430% h-1, respectively. The mean lag and VfT varied from 0.0001 to 5.2029 hours and 136.94 to 301.44 mL, respectively. A number of the products exhibited the potential to replace soybean meal, especially the forage radish cake and cottonseed, crambe and sunflower meals.</p< Degradation rate Fibrous carbohydrates Non-fibrous carbohydrates Ruminants. Agriculture (General) Marcos Inácio Marcondes verfasserin aut Cristina Mattos Veloso verfasserin aut Fernanda Campos de Sousa verfasserin aut Leonardo Sidney Knupp verfasserin aut In Semina: Ciências Agrárias Universidade Estadual de Londrina, 2010 36(2015), 6, Seite 3851-3862 (DE-627)625424700 (DE-600)2551446-5 16790359 nnns volume:36 year:2015 number:6 pages:3851-3862 https://doi.org/10.5433/1679-0359.2015v36n6p3851 kostenfrei https://doaj.org/article/8abd3f707c9b44e6810b750f3dfa132e kostenfrei http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/19386 kostenfrei https://doaj.org/toc/1676-546X Journal toc kostenfrei https://doaj.org/toc/1679-0359 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 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_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 36 2015 6 3851-3862
language	English Portuguese
source	In Semina: Ciências Agrárias 36(2015), 6, Seite 3851-3862 volume:36 year:2015 number:6 pages:3851-3862
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authorswithroles_txt_mv	Alex Lopes da Silva @@aut@@ Marcos Inácio Marcondes @@aut@@ Cristina Mattos Veloso @@aut@@ Fernanda Campos de Sousa @@aut@@ Leonardo Sidney Knupp @@aut@@
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author	Alex Lopes da Silva
spellingShingle	Alex Lopes da Silva misc S1-972 misc Degradation rate misc Fibrous carbohydrates misc Non-fibrous carbohydrates misc Ruminants. misc Agriculture (General) Simulation of rumen fermentation kinetics of by-products from the biodiesel industry with in vitro gas production technique
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topic_title	S1-972 Simulation of rumen fermentation kinetics of by-products from the biodiesel industry with in vitro gas production technique Degradation rate Fibrous carbohydrates Non-fibrous carbohydrates Ruminants
topic	misc S1-972 misc Degradation rate misc Fibrous carbohydrates misc Non-fibrous carbohydrates misc Ruminants. misc Agriculture (General)
topic_unstemmed	misc S1-972 misc Degradation rate misc Fibrous carbohydrates misc Non-fibrous carbohydrates misc Ruminants. misc Agriculture (General)
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title	Simulation of rumen fermentation kinetics of by-products from the biodiesel industry with in vitro gas production technique
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title_full	Simulation of rumen fermentation kinetics of by-products from the biodiesel industry with in vitro gas production technique
author_sort	Alex Lopes da Silva
journal	Semina: Ciências Agrárias
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author_browse	Alex Lopes da Silva Marcos Inácio Marcondes Cristina Mattos Veloso Fernanda Campos de Sousa Leonardo Sidney Knupp
container_volume	36
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author-letter	Alex Lopes da Silva
doi_str_mv	10.5433/1679-0359.2015v36n6p3851
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title_sort	simulation of rumen fermentation kinetics of by-products from the biodiesel industry with in vitro gas production technique
callnumber	S1-972
title_auth	Simulation of rumen fermentation kinetics of by-products from the biodiesel industry with in vitro gas production technique
abstract	<p<The objective of this study was to investigate the rumen fermentation kinetics of 18 by-products from the biodiesel industry exhibiting potential for use in the feeding of ruminants via the <em<in vitro </em<gas production technique. The following feeds were investigated: cottonseed, <em<canudo de pito</em<, crambe, sunflower, castor seed (detoxified with lime) and soybean meals and cottonseed, peanut, babassu, crambe, palm kernel, sunflower, licuri nut, macaúba, forage radish and jatropha cakes. The evaluated parameters were total gas production (VfT), gas production from fibrous carbohydrates (VfFC), gas production from non-fibrous carbohydrates (VfNFC), the degradation rate of fibrous carbohydrates (kdFC), the degradation rate of non-fibrous carbohydrates (kdNFC) and lag time (lag). The feeds were grouped into six different groups according to rumen fermentation kinetic parameters and adopting an R2 of 0.8. Forage radish cake and the meals of cottonseed, soybean, crambe and sunflower composed the first group, while the cakes of babassu and sunflower formed the second group. Canudo de pito and castor seed meals and the cakes of cottonseed, licuri and jatropha I and II formed the third group. The fourth group was composed by the cakes of crambe, palm kernel and peanut I. The fifth group was formed by peanut cake II, while macauba fruit cake formed the sixth group. The VfNFC and VfFC varied from 16.72 to 200.07 mL and from 53.09 to 242.12 mL, respectively. The mean kdFC and kdNFC values varied from 0.002 to 0.039% h-1and from 0.022 to 0.430% h-1, respectively. The mean lag and VfT varied from 0.0001 to 5.2029 hours and 136.94 to 301.44 mL, respectively. A number of the products exhibited the potential to replace soybean meal, especially the forage radish cake and cottonseed, crambe and sunflower meals.</p<
abstractGer	<p<The objective of this study was to investigate the rumen fermentation kinetics of 18 by-products from the biodiesel industry exhibiting potential for use in the feeding of ruminants via the <em<in vitro </em<gas production technique. The following feeds were investigated: cottonseed, <em<canudo de pito</em<, crambe, sunflower, castor seed (detoxified with lime) and soybean meals and cottonseed, peanut, babassu, crambe, palm kernel, sunflower, licuri nut, macaúba, forage radish and jatropha cakes. The evaluated parameters were total gas production (VfT), gas production from fibrous carbohydrates (VfFC), gas production from non-fibrous carbohydrates (VfNFC), the degradation rate of fibrous carbohydrates (kdFC), the degradation rate of non-fibrous carbohydrates (kdNFC) and lag time (lag). The feeds were grouped into six different groups according to rumen fermentation kinetic parameters and adopting an R2 of 0.8. Forage radish cake and the meals of cottonseed, soybean, crambe and sunflower composed the first group, while the cakes of babassu and sunflower formed the second group. Canudo de pito and castor seed meals and the cakes of cottonseed, licuri and jatropha I and II formed the third group. The fourth group was composed by the cakes of crambe, palm kernel and peanut I. The fifth group was formed by peanut cake II, while macauba fruit cake formed the sixth group. The VfNFC and VfFC varied from 16.72 to 200.07 mL and from 53.09 to 242.12 mL, respectively. The mean kdFC and kdNFC values varied from 0.002 to 0.039% h-1and from 0.022 to 0.430% h-1, respectively. The mean lag and VfT varied from 0.0001 to 5.2029 hours and 136.94 to 301.44 mL, respectively. A number of the products exhibited the potential to replace soybean meal, especially the forage radish cake and cottonseed, crambe and sunflower meals.</p<
abstract_unstemmed	<p<The objective of this study was to investigate the rumen fermentation kinetics of 18 by-products from the biodiesel industry exhibiting potential for use in the feeding of ruminants via the <em<in vitro </em<gas production technique. The following feeds were investigated: cottonseed, <em<canudo de pito</em<, crambe, sunflower, castor seed (detoxified with lime) and soybean meals and cottonseed, peanut, babassu, crambe, palm kernel, sunflower, licuri nut, macaúba, forage radish and jatropha cakes. The evaluated parameters were total gas production (VfT), gas production from fibrous carbohydrates (VfFC), gas production from non-fibrous carbohydrates (VfNFC), the degradation rate of fibrous carbohydrates (kdFC), the degradation rate of non-fibrous carbohydrates (kdNFC) and lag time (lag). The feeds were grouped into six different groups according to rumen fermentation kinetic parameters and adopting an R2 of 0.8. Forage radish cake and the meals of cottonseed, soybean, crambe and sunflower composed the first group, while the cakes of babassu and sunflower formed the second group. Canudo de pito and castor seed meals and the cakes of cottonseed, licuri and jatropha I and II formed the third group. The fourth group was composed by the cakes of crambe, palm kernel and peanut I. The fifth group was formed by peanut cake II, while macauba fruit cake formed the sixth group. The VfNFC and VfFC varied from 16.72 to 200.07 mL and from 53.09 to 242.12 mL, respectively. The mean kdFC and kdNFC values varied from 0.002 to 0.039% h-1and from 0.022 to 0.430% h-1, respectively. The mean lag and VfT varied from 0.0001 to 5.2029 hours and 136.94 to 301.44 mL, respectively. A number of the products exhibited the potential to replace soybean meal, especially the forage radish cake and cottonseed, crambe and sunflower meals.</p<
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title_short	Simulation of rumen fermentation kinetics of by-products from the biodiesel industry with in vitro gas production technique
url	https://doi.org/10.5433/1679-0359.2015v36n6p3851 https://doaj.org/article/8abd3f707c9b44e6810b750f3dfa132e http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/19386 https://doaj.org/toc/1676-546X https://doaj.org/toc/1679-0359
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author2	Marcos Inácio Marcondes Cristina Mattos Veloso Fernanda Campos de Sousa Leonardo Sidney Knupp
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