Trace Mineral Source Impacts Volatile Fatty Acid Profile and Rumen Trace Mineral Solubility in Feedlot Steers
Two experiments were conducted to evaluate the effects of trace mineral (TM) source on: (1) nutrient digestibility and rumen fermentation characteristics, (2) rumen TM solubility, and (3) TM binding strength on ruminal digesta. In experiment 1, twelve cannulated Angus steers were adapted to a high-c...
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2025-04-01
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| author | Huey Yi Loh Octavio Guimaraes Meghan P. Thorndyke Sam Jalali Jerry W. Spears Jeff S. Heldt Terry E. Engle |
| author_facet | Huey Yi Loh Octavio Guimaraes Meghan P. Thorndyke Sam Jalali Jerry W. Spears Jeff S. Heldt Terry E. Engle |
| author_sort | Huey Yi Loh |
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| description | Two experiments were conducted to evaluate the effects of trace mineral (TM) source on: (1) nutrient digestibility and rumen fermentation characteristics, (2) rumen TM solubility, and (3) TM binding strength on ruminal digesta. In experiment 1, twelve cannulated Angus steers were adapted to a high-concentrate diet, blocked by body weight, and randomly assigned to dietary treatments consisting of 18, 40, or 90 mg of supplemental Cu, Mn, and Zn/kg DM, respectively, from either sulfate (STM) or hydroxy (HTM) sources. Following diet adaptation, total fecal and rumen fluid were collected over a 5 d period. Nutrient digestibility was not affected (<i>p</i> > 0.15) by TM source. Steers supplemented with HTM had greater (<i>p</i> < 0.05) ruminal molar proportions of propionate and lower (<i>p</i> < 0.05) molar proportions of butyrate compared to STM-supplemented steers. In experiment 2, steers received a single pulse dose of their respective TM treatments via the cannula. Ruminal samples were obtained at 2 h intervals from −4 to 24 h post-dosing. Ruminal-soluble Cu concentrations were greater (<i>p</i> < 0.05) for STM-dosed steers. Steers receiving HTM had greater (<i>p</i> < 0.01) Cu and Zn and lower (<i>p</i> < 0.01) Mn released from digesta compared to those receiving STM. |
| format | Article |
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| language | English |
| publishDate | 2025-04-01 |
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| series | Animals |
| spelling | doaj-art-e0f5ac9b15774e0984eb8f14cd28818b2025-08-20T01:50:45ZengMDPI AGAnimals2076-26152025-04-01159127110.3390/ani15091271Trace Mineral Source Impacts Volatile Fatty Acid Profile and Rumen Trace Mineral Solubility in Feedlot SteersHuey Yi Loh0Octavio Guimaraes1Meghan P. Thorndyke2Sam Jalali3Jerry W. Spears4Jeff S. Heldt5Terry E. Engle6Department of Animal Sciences, Colorado State University, Fort Collins, CO 80523, USAMidwest PMS LLC, Englewood, CO 80112, USAMidwest PMS LLC, Englewood, CO 80112, USAPilgrim’s Pride Company, Greeley, CO 80634, USADepartment of Animal Sciences, North Carolina State University, Raleigh, NC 27695, USASelko<sup>®</sup> USA, Indianapolis, IN 46231, USADepartment of Animal Sciences, Colorado State University, Fort Collins, CO 80523, USATwo experiments were conducted to evaluate the effects of trace mineral (TM) source on: (1) nutrient digestibility and rumen fermentation characteristics, (2) rumen TM solubility, and (3) TM binding strength on ruminal digesta. In experiment 1, twelve cannulated Angus steers were adapted to a high-concentrate diet, blocked by body weight, and randomly assigned to dietary treatments consisting of 18, 40, or 90 mg of supplemental Cu, Mn, and Zn/kg DM, respectively, from either sulfate (STM) or hydroxy (HTM) sources. Following diet adaptation, total fecal and rumen fluid were collected over a 5 d period. Nutrient digestibility was not affected (<i>p</i> > 0.15) by TM source. Steers supplemented with HTM had greater (<i>p</i> < 0.05) ruminal molar proportions of propionate and lower (<i>p</i> < 0.05) molar proportions of butyrate compared to STM-supplemented steers. In experiment 2, steers received a single pulse dose of their respective TM treatments via the cannula. Ruminal samples were obtained at 2 h intervals from −4 to 24 h post-dosing. Ruminal-soluble Cu concentrations were greater (<i>p</i> < 0.05) for STM-dosed steers. Steers receiving HTM had greater (<i>p</i> < 0.01) Cu and Zn and lower (<i>p</i> < 0.01) Mn released from digesta compared to those receiving STM.https://www.mdpi.com/2076-2615/15/9/1271pHdialysisbioavailability |
| spellingShingle | Huey Yi Loh Octavio Guimaraes Meghan P. Thorndyke Sam Jalali Jerry W. Spears Jeff S. Heldt Terry E. Engle Trace Mineral Source Impacts Volatile Fatty Acid Profile and Rumen Trace Mineral Solubility in Feedlot Steers Animals pH dialysis bioavailability |
| title | Trace Mineral Source Impacts Volatile Fatty Acid Profile and Rumen Trace Mineral Solubility in Feedlot Steers |
| title_full | Trace Mineral Source Impacts Volatile Fatty Acid Profile and Rumen Trace Mineral Solubility in Feedlot Steers |
| title_fullStr | Trace Mineral Source Impacts Volatile Fatty Acid Profile and Rumen Trace Mineral Solubility in Feedlot Steers |
| title_full_unstemmed | Trace Mineral Source Impacts Volatile Fatty Acid Profile and Rumen Trace Mineral Solubility in Feedlot Steers |
| title_short | Trace Mineral Source Impacts Volatile Fatty Acid Profile and Rumen Trace Mineral Solubility in Feedlot Steers |
| title_sort | trace mineral source impacts volatile fatty acid profile and rumen trace mineral solubility in feedlot steers |
| topic | pH dialysis bioavailability |
| url | https://www.mdpi.com/2076-2615/15/9/1271 |
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