Nutritional Methods to Decrease N Losses from Open-Dirt Feedlots in Nebraska
Nitrogen (N) losses from cattle feedlots are of concern due to loss of valuable N and enrichment of the atmospheric N pool. Nutritional methods to decrease such losses would have economic and environmental benefits. One method to decrease N losses is by increasing carbon (C) on the pen surface. The...
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| Format: | Article |
| Language: | English |
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Wiley
2001-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/tsw.2001.364 |
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| author | Galen E. Erickson Terry J. Klopfenstein |
| author_facet | Galen E. Erickson Terry J. Klopfenstein |
| author_sort | Galen E. Erickson |
| collection | DOAJ |
| description | Nitrogen (N) losses from cattle feedlots are of concern due to loss of valuable N and enrichment of the atmospheric N pool. Nutritional methods to decrease such losses would have economic and environmental benefits. One method to decrease N losses is by increasing carbon (C) on the pen surface. The most cost effective method of decreasing N losses with C may be feeding diets lower in digestibility compared to adding C directly to pens. Therefore, three experiments evaluated feeding corn bran (which is less digestible than corn) as either 0, 15, or 30% of the diet. The 15- and 30%-bran diets increase organic matter (OM) excretion by approximately 0.5 and 1.0 kg per steer per day, respectively. Compared with no bran, feeding 15 and 30% decreased feed efficiency by 7.8 and 10.4%, respectively. Nutrient balance was assessed in two trials from October through May and in one trial from June to September. During the trials from October to May, N losses were decreased by 14.5 and 20.7% for the 15- and 30%-bran diets compared with no bran. Feeding 15 or 30% bran did not influence N losses in the experiment from June to September. Increasing the C:N ratio of manure prior to cleaning open-dirt feedlots had variable results depending on time of year. |
| format | Article |
| id | doaj-art-1c5f18cd8bfe424a9e540f37b5f61c6d |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2001-01-01 |
| publisher | Wiley |
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| series | The Scientific World Journal |
| spelling | doaj-art-1c5f18cd8bfe424a9e540f37b5f61c6d2025-02-03T05:43:34ZengWileyThe Scientific World Journal1537-744X2001-01-01183684310.1100/tsw.2001.364Nutritional Methods to Decrease N Losses from Open-Dirt Feedlots in NebraskaGalen E. Erickson0Terry J. Klopfenstein1Department of Animal Science, University of Nebraska, Lincoln 68583-0908, USADepartment of Animal Science, University of Nebraska, Lincoln 68583-0908, USANitrogen (N) losses from cattle feedlots are of concern due to loss of valuable N and enrichment of the atmospheric N pool. Nutritional methods to decrease such losses would have economic and environmental benefits. One method to decrease N losses is by increasing carbon (C) on the pen surface. The most cost effective method of decreasing N losses with C may be feeding diets lower in digestibility compared to adding C directly to pens. Therefore, three experiments evaluated feeding corn bran (which is less digestible than corn) as either 0, 15, or 30% of the diet. The 15- and 30%-bran diets increase organic matter (OM) excretion by approximately 0.5 and 1.0 kg per steer per day, respectively. Compared with no bran, feeding 15 and 30% decreased feed efficiency by 7.8 and 10.4%, respectively. Nutrient balance was assessed in two trials from October through May and in one trial from June to September. During the trials from October to May, N losses were decreased by 14.5 and 20.7% for the 15- and 30%-bran diets compared with no bran. Feeding 15 or 30% bran did not influence N losses in the experiment from June to September. Increasing the C:N ratio of manure prior to cleaning open-dirt feedlots had variable results depending on time of year.http://dx.doi.org/10.1100/tsw.2001.364 |
| spellingShingle | Galen E. Erickson Terry J. Klopfenstein Nutritional Methods to Decrease N Losses from Open-Dirt Feedlots in Nebraska The Scientific World Journal |
| title | Nutritional Methods to Decrease N Losses from Open-Dirt Feedlots in Nebraska |
| title_full | Nutritional Methods to Decrease N Losses from Open-Dirt Feedlots in Nebraska |
| title_fullStr | Nutritional Methods to Decrease N Losses from Open-Dirt Feedlots in Nebraska |
| title_full_unstemmed | Nutritional Methods to Decrease N Losses from Open-Dirt Feedlots in Nebraska |
| title_short | Nutritional Methods to Decrease N Losses from Open-Dirt Feedlots in Nebraska |
| title_sort | nutritional methods to decrease n losses from open dirt feedlots in nebraska |
| url | http://dx.doi.org/10.1100/tsw.2001.364 |
| work_keys_str_mv | AT galeneerickson nutritionalmethodstodecreasenlossesfromopendirtfeedlotsinnebraska AT terryjklopfenstein nutritionalmethodstodecreasenlossesfromopendirtfeedlotsinnebraska |