Practical parameters for assessing starch digestion and feeding value of steam-flaked corn in finishing diets for feedlot cattle
ABSTRACTSix Holstein steers (153 kg ± 11) with cannulas in the rumen and proximal duodenum were used in a 6 × 6 Latin square design experiment to compare flake density (FD, kg/L), flake thickness (FT, mm), amyloglucosidase reactivity (AGR, % DM) and faecal starch (FS, % DM) as predictors of ruminal...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2023-12-01
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| Series: | Journal of Applied Animal Research |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/09712119.2022.2149537 |
| _version_ | 1797448308782792704 |
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| author | Manuel Alejandro Franco-Hernández Luis Corona Alejandro Plascencia Richard Avery Zinn |
| author_facet | Manuel Alejandro Franco-Hernández Luis Corona Alejandro Plascencia Richard Avery Zinn |
| author_sort | Manuel Alejandro Franco-Hernández |
| collection | DOAJ |
| description | ABSTRACTSix Holstein steers (153 kg ± 11) with cannulas in the rumen and proximal duodenum were used in a 6 × 6 Latin square design experiment to compare flake density (FD, kg/L), flake thickness (FT, mm), amyloglucosidase reactivity (AGR, % DM) and faecal starch (FS, % DM) as predictors of ruminal (RSD, %) and total tract (TSD, %) starch digestion. Dietary treatments consisted of a finishing diet containing 77% corn. The six corn processing treatments consisted of dry-rolled corn (DRC) with a density of 0.54 kg/L, and steam-flaked corn (SFC) processed to obtain densities of 0.46, 0.41, 0.36, 0.31 and 0.26 kg/L. Compared with DRC, steam flaking enhanced postruminal (34.2%, P < 0.01) and TSD (7.8%, P < 0.01). Measures of FS were the best single predictor of both ruminal (r2 = 0.97) and TSD (r2 = 0.98). Whereas AGR was a good predictor of RSD (r2 = 0.94), it was less effective than FS for estimation of TSD (r2 = 0.91). We conclude that compared with dry rolling, stream flaking markedly enhances the feeding value of corn. To evaluate the consistency of the flaking process, we recommend in addition to the determinations of FD, measurements of FT, starch enzymatic reactivity and FS are useful indicators. |
| first_indexed | 2024-03-09T14:08:28Z |
| format | Article |
| id | doaj.art-1ad7cdf2f3ad4925b11f716deba0eae1 |
| institution | Directory Open Access Journal |
| issn | 0971-2119 0974-1844 |
| language | English |
| last_indexed | 2024-03-09T14:08:28Z |
| publishDate | 2023-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Applied Animal Research |
| spelling | doaj.art-1ad7cdf2f3ad4925b11f716deba0eae12023-11-29T18:00:52ZengTaylor & Francis GroupJournal of Applied Animal Research0971-21190974-18442023-12-01511243010.1080/09712119.2022.2149537Practical parameters for assessing starch digestion and feeding value of steam-flaked corn in finishing diets for feedlot cattleManuel Alejandro Franco-Hernández0Luis Corona1Alejandro Plascencia2Richard Avery Zinn3Department of Animal Nutrition and Biochemistry, Veterinary School, University National Autonomous of Mexico, Mexico City, MexicoDepartment of Animal Nutrition and Biochemistry, Veterinary School, University National Autonomous of Mexico, Mexico City, MexicoInstitute for Research in Veterinary Sciences, University Autonomous of Baja California, Mexicali, MéxicoDepartment of Animal Science, University of California, Davis, CA, USAABSTRACTSix Holstein steers (153 kg ± 11) with cannulas in the rumen and proximal duodenum were used in a 6 × 6 Latin square design experiment to compare flake density (FD, kg/L), flake thickness (FT, mm), amyloglucosidase reactivity (AGR, % DM) and faecal starch (FS, % DM) as predictors of ruminal (RSD, %) and total tract (TSD, %) starch digestion. Dietary treatments consisted of a finishing diet containing 77% corn. The six corn processing treatments consisted of dry-rolled corn (DRC) with a density of 0.54 kg/L, and steam-flaked corn (SFC) processed to obtain densities of 0.46, 0.41, 0.36, 0.31 and 0.26 kg/L. Compared with DRC, steam flaking enhanced postruminal (34.2%, P < 0.01) and TSD (7.8%, P < 0.01). Measures of FS were the best single predictor of both ruminal (r2 = 0.97) and TSD (r2 = 0.98). Whereas AGR was a good predictor of RSD (r2 = 0.94), it was less effective than FS for estimation of TSD (r2 = 0.91). We conclude that compared with dry rolling, stream flaking markedly enhances the feeding value of corn. To evaluate the consistency of the flaking process, we recommend in addition to the determinations of FD, measurements of FT, starch enzymatic reactivity and FS are useful indicators.https://www.tandfonline.com/doi/10.1080/09712119.2022.2149537Cornstarchprocessingdigestioncattle |
| spellingShingle | Manuel Alejandro Franco-Hernández Luis Corona Alejandro Plascencia Richard Avery Zinn Practical parameters for assessing starch digestion and feeding value of steam-flaked corn in finishing diets for feedlot cattle Journal of Applied Animal Research Corn starch processing digestion cattle |
| title | Practical parameters for assessing starch digestion and feeding value of steam-flaked corn in finishing diets for feedlot cattle |
| title_full | Practical parameters for assessing starch digestion and feeding value of steam-flaked corn in finishing diets for feedlot cattle |
| title_fullStr | Practical parameters for assessing starch digestion and feeding value of steam-flaked corn in finishing diets for feedlot cattle |
| title_full_unstemmed | Practical parameters for assessing starch digestion and feeding value of steam-flaked corn in finishing diets for feedlot cattle |
| title_short | Practical parameters for assessing starch digestion and feeding value of steam-flaked corn in finishing diets for feedlot cattle |
| title_sort | practical parameters for assessing starch digestion and feeding value of steam flaked corn in finishing diets for feedlot cattle |
| topic | Corn starch processing digestion cattle |
| url | https://www.tandfonline.com/doi/10.1080/09712119.2022.2149537 |
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