PROTEIN FRACTIONS AND IN VITRO FERMENTATION OF PROTEIN FEEDS FOR RUMINANTS
The objective of this study was to evaluate 20 protein feeds grouped in forages, vegetal by- products and animal by-products used for ruminant diets. Protein fractions (PF): A, non-protein nitrogen (NPN); B1, buffer-soluble protein; B2, buffer-insoluble, NDF-soluble protein; B3, NDF-insoluble, ADF-s...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidad Autónoma de Yucatán
2011-05-01
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| Series: | Tropical and Subtropical Agroecosystems |
| Subjects: | |
| Online Access: | http://www.revista.ccba.uady.mx/ojs/index.php/TSA/article/view/746 |
| _version_ | 1811304986162757632 |
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| author | Angel L. Guevara-Mesa Luis A. Miranda-Romero Efren Ramirez-Bribiesca Sergio S. Gonzalez-Muñoz Maria M. Crosby-Galvan Luz M. Hernandez-Calva Oscar E. Del Razo-Rodriguez |
| author_facet | Angel L. Guevara-Mesa Luis A. Miranda-Romero Efren Ramirez-Bribiesca Sergio S. Gonzalez-Muñoz Maria M. Crosby-Galvan Luz M. Hernandez-Calva Oscar E. Del Razo-Rodriguez |
| author_sort | Angel L. Guevara-Mesa |
| collection | DOAJ |
| description | The objective of this study was to evaluate 20 protein feeds grouped in forages, vegetal by- products and animal by-products used for ruminant diets. Protein fractions (PF): A, non-protein nitrogen (NPN); B1, buffer-soluble protein; B2, buffer-insoluble, NDF-soluble protein; B3, NDF-insoluble, ADF-soluble protein; and C, ADF-insoluble protein, were determined for each ingredient. Protein composition was correlated with total gas production in vitro (GP), gas production rate (S), lag time (L), DM disappearance (DMDIV) and residual protein (RPIV). The completely randomised designed was analysed using mixed proc. and Tukey contrasts. Forages contained 18.29, 7.86, 66.00, 2.96, 4.89% of fractions A, B1, B2, B3 and C, respectively. Vegetable by-products contained 22.55, 4.55, 59.51, 8.84, 4.55% of each fraction, in the same order. Animal by-products contained 19.13, 4.52, 70.24, 3.74, 2.37% of each fraction, in the same order. Vetch, wheat bran and poultry litter had the greatest Vmax in each group. Vmax was correlated (P≤0.01) with total protein (r = -0.45), ADF (r = 0.27) and DMDIV (r = 0.61). In conclusion, there were differences in protein composition and kinetics of in vitro gas production among ingredients. |
| first_indexed | 2024-04-13T08:17:13Z |
| format | Article |
| id | doaj.art-c19ce047d2834f09bb3e0fc12c06b43c |
| institution | Directory Open Access Journal |
| issn | 1870-0462 |
| language | English |
| last_indexed | 2024-04-13T08:17:13Z |
| publishDate | 2011-05-01 |
| publisher | Universidad Autónoma de Yucatán |
| record_format | Article |
| series | Tropical and Subtropical Agroecosystems |
| spelling | doaj.art-c19ce047d2834f09bb3e0fc12c06b43c2022-12-22T02:54:44ZengUniversidad Autónoma de YucatánTropical and Subtropical Agroecosystems1870-04622011-05-01142421429325PROTEIN FRACTIONS AND IN VITRO FERMENTATION OF PROTEIN FEEDS FOR RUMINANTSAngel L. Guevara-Mesa0Luis A. Miranda-Romero1Efren Ramirez-Bribiesca2Sergio S. Gonzalez-Muñoz3Maria M. Crosby-Galvan4Luz M. Hernandez-Calva5Oscar E. Del Razo-Rodriguez6MCPhDPhDPhDPhDPhDPhDThe objective of this study was to evaluate 20 protein feeds grouped in forages, vegetal by- products and animal by-products used for ruminant diets. Protein fractions (PF): A, non-protein nitrogen (NPN); B1, buffer-soluble protein; B2, buffer-insoluble, NDF-soluble protein; B3, NDF-insoluble, ADF-soluble protein; and C, ADF-insoluble protein, were determined for each ingredient. Protein composition was correlated with total gas production in vitro (GP), gas production rate (S), lag time (L), DM disappearance (DMDIV) and residual protein (RPIV). The completely randomised designed was analysed using mixed proc. and Tukey contrasts. Forages contained 18.29, 7.86, 66.00, 2.96, 4.89% of fractions A, B1, B2, B3 and C, respectively. Vegetable by-products contained 22.55, 4.55, 59.51, 8.84, 4.55% of each fraction, in the same order. Animal by-products contained 19.13, 4.52, 70.24, 3.74, 2.37% of each fraction, in the same order. Vetch, wheat bran and poultry litter had the greatest Vmax in each group. Vmax was correlated (P≤0.01) with total protein (r = -0.45), ADF (r = 0.27) and DMDIV (r = 0.61). In conclusion, there were differences in protein composition and kinetics of in vitro gas production among ingredients.http://www.revista.ccba.uady.mx/ojs/index.php/TSA/article/view/746Protein fractionsIn vitrogas productionruminants |
| spellingShingle | Angel L. Guevara-Mesa Luis A. Miranda-Romero Efren Ramirez-Bribiesca Sergio S. Gonzalez-Muñoz Maria M. Crosby-Galvan Luz M. Hernandez-Calva Oscar E. Del Razo-Rodriguez PROTEIN FRACTIONS AND IN VITRO FERMENTATION OF PROTEIN FEEDS FOR RUMINANTS Tropical and Subtropical Agroecosystems Protein fractions In vitro gas production ruminants |
| title | PROTEIN FRACTIONS AND IN VITRO FERMENTATION OF PROTEIN FEEDS FOR RUMINANTS |
| title_full | PROTEIN FRACTIONS AND IN VITRO FERMENTATION OF PROTEIN FEEDS FOR RUMINANTS |
| title_fullStr | PROTEIN FRACTIONS AND IN VITRO FERMENTATION OF PROTEIN FEEDS FOR RUMINANTS |
| title_full_unstemmed | PROTEIN FRACTIONS AND IN VITRO FERMENTATION OF PROTEIN FEEDS FOR RUMINANTS |
| title_short | PROTEIN FRACTIONS AND IN VITRO FERMENTATION OF PROTEIN FEEDS FOR RUMINANTS |
| title_sort | protein fractions and in vitro fermentation of protein feeds for ruminants |
| topic | Protein fractions In vitro gas production ruminants |
| url | http://www.revista.ccba.uady.mx/ojs/index.php/TSA/article/view/746 |
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