Effects of Dietary Fiber and Reduced Crude Protein on Ammonia Emission from Laying-Hen Manure

dc.contributor.author Roberts, Stacey
dc.contributor.author Xin, Hongwei
dc.contributor.author Xin, Hongwei
dc.contributor.author Kerr, Brian
dc.contributor.author Russell, James
dc.contributor.author Bregendahl, Kristjan
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-13T04:29:31.000
dc.date.accessioned 2020-06-29T22:38:00Z
dc.date.available 2020-06-29T22:38:00Z
dc.date.embargo 2012-12-17
dc.date.issued 2007-01-01
dc.description.abstract <p>Ammonia (NH3 ) emission is a major concern for the poultry industry. The objective of this research was to determine whether inclusion of dietary fiber and a reduced dietary CP content would decrease NH3 emission from laying-hen manure. A total of 256 Hy-Line W-36 hens were fed diets with 2 levels of CP (normal and reduced) and 4 fiber treatments in a 2 × 4 factorial arrangement. The fiber treatments included a corn and soybean meal-based control diet and diets formulated with either 10.0% corn dried distillers grains with solubles (DDGS), 7.3% wheat middlings (WM), or 4.8% soybean hulls (SH) to contribute equal amounts of additional neutral detergent fiber. The CP contents of the reduced-CP diets were approximately 1 percentage unit lower than those of the normal-CP diets. All diets were formulated on the basis of digestible amino acid content and were formulated to be isoenergetic. Fresh manure was collected such that pH, uric acid, and Kjeldahl N contents could be measured. The NH3 emission from manure was measured over 7 d by placing pooled 24-h manure samples in NH3 emission vessels. Data were analyzed by ANOVA with Dunnett’s multiple-comparisons procedure to compare results from the fiber treatments with the control, whereas the main effect of protein was used to compare the normal- and reduced-CP treatments. Dietary corn DDGS, WM, or SH lowered (P ≤ 0.01) the 7-d cumulative manure NH3 emission from 3.9 g/kg of DM manure for the control to 1.9, 2.1, and 2.3 g/kg of DM manure, respectively, and lowered (P < 0.05) the daily NH3 emission rate. Results of this study showed that dietary inclusion of 10.0% corn DDGS, 7.3% WM, or 4.8% SH lowered NH3 emission from laying-hen manure; however, reducing the CP content by 1 percentage unit had no measurable effect on NH3 emission.</p>
dc.description.comments <p>This article is from <em><a href="http://ps.fass.org/content/86/8/1625.abstract?sid=6b4cfe9e-562f-4750-9212-9b6f138af6d9" target="_blank">Poultry Science</a> </em>86, no. 8 (2007): 1625–1632.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/212/
dc.identifier.articleid 1210
dc.identifier.contextkey 3541415
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/212
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/955
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/212/Xin_2007_EffectsDietaryFiber.pdf|||Fri Jan 14 22:35:25 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords ammonia emission
dc.subject.keywords corn dried distillers grains with solubles
dc.subject.keywords reduced-protein diet
dc.subject.keywords soybean hull
dc.subject.keywords wheat middlings
dc.title Effects of Dietary Fiber and Reduced Crude Protein on Ammonia Emission from Laying-Hen Manure
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 36e0a8ce-fa2e-4df4-9f67-8d1717122650
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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