| Evaluation of nitrogen and organic matter balance in the feedlot as affected by level and source of dietary fiber. | |
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MedLine Citation:
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PMID: 10438008 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A trial was conducted to determine the effect of level and source of dietary fiber on N and OM excretion by cattle on finishing diets. One hundred twenty steers were stratified by weight and allotted to one of the following treatments: 7.5% roughage (7.5% R), wet corn gluten feed (WCGF; 41.5% of dietary DM), and all-concentrate (All Con) diet. Cattle were fed for 87 d during the summer with 23.7 m2 of pen area per animal. Steers fed the WCGF diet had heavier final weights, greater DMI, and higher ADG (P < .01) than the 7.5% R and All Con treatments. Steers fed All Con had lower (P < .01) DMI than the other two treatments. Nitrogen and OM mass balances in the feedlot were quantified. Main components were nutrient input, retention, and excretion. Nitrogen and OM intake of steers fed WCGF were greater (P < .05) than those of steers fed the other treatments. The WCGF treatment had a greater percentage of fecal N output (P < .05). The All Con treatment had a greater (P < .01) percentage of urinary N than WCGF and 7.5% R diets. Steers fed the WCGF treatment excreted more (P < .01) OM compared with the other treatments, which led to more N and OM being removed in manure at cleaning. The All Con treatment had more (P < .01) N and OM in runoff than the other treatments. Nutrition can change site of fermentation, which affects the composition of excreted material; however, total amount of N excreted may be more important than route of excretion in decreasing N losses to the environment and maximizing recovery in manure. |
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Authors:
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S Bierman; G E Erickson; T J Klopfenstein; R A Stock; D H Shain |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of animal science Volume: 77 ISSN: 0021-8812 ISO Abbreviation: J. Anim. Sci. Publication Date: 1999 Jul |
Date Detail:
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Created Date: 1999-09-02 Completed Date: 1999-09-02 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 8003002 Medline TA: J Anim Sci Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1645-53 Citation Subset: IM |
Affiliation:
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University of Nebraska, Lincoln 68583-0908, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animal Feed* Animal Nutritional Physiological Phenomena Animals Cattle / physiology* Dietary Carbohydrates / metabolism Dietary Fiber* / metabolism Digestion Feces / chemistry Homeostasis* Male Nitrogen / metabolism, urine Refuse Disposal* |
| Chemical | |
Reg. No./Substance:
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0/Dietary Carbohydrates; 7727-37-9/Nitrogen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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