Ruminal parameters analyzed in remaining digestion residue of roughages in the in vitro/gas system
Animal performance is the most direct measure in the evaluation of feed quality. However, performance data are often insufficient to determine possible interactions that may take place in the ruminal environment. The purpose of the present trial was to evaluate the possible associative effects on th...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade de São Paulo
2002-09-01
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| Series: | Scientia Agricola |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162002000300024&tlng=en |
| _version_ | 1828125860915314688 |
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| author | Fábio Prudêncio de Campos Alexandre Amstalden Moraes Sampaio Paulo de Figueiredo Vieira Max Lázaro Vieira Bose Patrícia Sarmento |
| author_facet | Fábio Prudêncio de Campos Alexandre Amstalden Moraes Sampaio Paulo de Figueiredo Vieira Max Lázaro Vieira Bose Patrícia Sarmento |
| author_sort | Fábio Prudêncio de Campos |
| collection | DOAJ |
| description | Animal performance is the most direct measure in the evaluation of feed quality. However, performance data are often insufficient to determine possible interactions that may take place in the ruminal environment. The purpose of the present trial was to evaluate the possible associative effects on the concentrations of volatile fatty acids (VFAs), ammoniacal nitrogen (N-NH3) and pH in the remaining liquid fraction from the dry matter (DM) digestion for exclusive roughages: sugarcane (SC), 60- (EG60) and 180-day elephantgrass (EG180), and corn silage (SIL), as well as for combined roughages: sugarcane+corn silage (SCSIL), sugarcane+60-day elephantgrass (SCEG60), sugarcane+180-day elephantgrass (SCEG180), corn silage+60-day elephantgrass (SILEG60), corn silage+180-day elephantgrass (SILEG180) associated at equal DM proportions (50%). These associative effects present positive or negative effects on bovine performance. Concentrations of VFAs and N-NH3, as well as pH for the treatments were, respectively: SC= 56.9 mmol L-1, 50.1 mg dL-1, 5.7; SCSIL= 61.4 mmol L-1, 50.7 mg dL-1, 5.8; SCEG60= 54.7 mmol L-1, 47.6 mg dL-1, 5.8; SCEG180= 45.4 mmol L-1, 49.4 mg dL-1, 6.0; SIL= 57.2 mmol L-1, 54.0 mg dL-1, 5.8; SILEG60= 57.1 mmol L-1, 53.1 mg dL-1, 5.9; SILEG180= 55.9 mmol L-1, 52.3 mg dL-1, 6.0; EG60= 58.1 mmol L-1, 49.4 mg dL-1, 5.9; and EG180= 44.0 mmol L-1, 46.4 mg dL-1, 6.1. Nonstructural carbohydrates and starch, associated with fiber and protein, contributed to positive associative effect on the 50:50 sugarcane/corn silage mixtures. The high fermentative aspect of such mixture may have promoted the best results in bovine performance. |
| first_indexed | 2024-04-11T15:27:44Z |
| format | Article |
| id | doaj.art-418235fa87f746779b92005a2dbeda09 |
| institution | Directory Open Access Journal |
| issn | 1678-992X |
| language | English |
| last_indexed | 2024-04-11T15:27:44Z |
| publishDate | 2002-09-01 |
| publisher | Universidade de São Paulo |
| record_format | Article |
| series | Scientia Agricola |
| spelling | doaj.art-418235fa87f746779b92005a2dbeda092022-12-22T04:16:13ZengUniversidade de São PauloScientia Agricola1678-992X2002-09-01593573579Ruminal parameters analyzed in remaining digestion residue of roughages in the in vitro/gas systemFábio Prudêncio de Campos0Alexandre Amstalden Moraes Sampaio1Paulo de Figueiredo Vieira2Max Lázaro Vieira Bose3Patrícia Sarmento4USPUNESPUNESPUSPUNESPAnimal performance is the most direct measure in the evaluation of feed quality. However, performance data are often insufficient to determine possible interactions that may take place in the ruminal environment. The purpose of the present trial was to evaluate the possible associative effects on the concentrations of volatile fatty acids (VFAs), ammoniacal nitrogen (N-NH3) and pH in the remaining liquid fraction from the dry matter (DM) digestion for exclusive roughages: sugarcane (SC), 60- (EG60) and 180-day elephantgrass (EG180), and corn silage (SIL), as well as for combined roughages: sugarcane+corn silage (SCSIL), sugarcane+60-day elephantgrass (SCEG60), sugarcane+180-day elephantgrass (SCEG180), corn silage+60-day elephantgrass (SILEG60), corn silage+180-day elephantgrass (SILEG180) associated at equal DM proportions (50%). These associative effects present positive or negative effects on bovine performance. Concentrations of VFAs and N-NH3, as well as pH for the treatments were, respectively: SC= 56.9 mmol L-1, 50.1 mg dL-1, 5.7; SCSIL= 61.4 mmol L-1, 50.7 mg dL-1, 5.8; SCEG60= 54.7 mmol L-1, 47.6 mg dL-1, 5.8; SCEG180= 45.4 mmol L-1, 49.4 mg dL-1, 6.0; SIL= 57.2 mmol L-1, 54.0 mg dL-1, 5.8; SILEG60= 57.1 mmol L-1, 53.1 mg dL-1, 5.9; SILEG180= 55.9 mmol L-1, 52.3 mg dL-1, 6.0; EG60= 58.1 mmol L-1, 49.4 mg dL-1, 5.9; and EG180= 44.0 mmol L-1, 46.4 mg dL-1, 6.1. Nonstructural carbohydrates and starch, associated with fiber and protein, contributed to positive associative effect on the 50:50 sugarcane/corn silage mixtures. The high fermentative aspect of such mixture may have promoted the best results in bovine performance.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162002000300024&tlng=enVFAsN-NH3elephantgrasscorn silagesugarcane |
| spellingShingle | Fábio Prudêncio de Campos Alexandre Amstalden Moraes Sampaio Paulo de Figueiredo Vieira Max Lázaro Vieira Bose Patrícia Sarmento Ruminal parameters analyzed in remaining digestion residue of roughages in the in vitro/gas system Scientia Agricola VFAs N-NH3 elephantgrass corn silage sugarcane |
| title | Ruminal parameters analyzed in remaining digestion residue of roughages in the in vitro/gas system |
| title_full | Ruminal parameters analyzed in remaining digestion residue of roughages in the in vitro/gas system |
| title_fullStr | Ruminal parameters analyzed in remaining digestion residue of roughages in the in vitro/gas system |
| title_full_unstemmed | Ruminal parameters analyzed in remaining digestion residue of roughages in the in vitro/gas system |
| title_short | Ruminal parameters analyzed in remaining digestion residue of roughages in the in vitro/gas system |
| title_sort | ruminal parameters analyzed in remaining digestion residue of roughages in the in vitro gas system |
| topic | VFAs N-NH3 elephantgrass corn silage sugarcane |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162002000300024&tlng=en |
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