Wheat by-products are feedstuffs that
\nvary in nutritional value, partly because of arabinoxylans
\nthat limit nutrient digestibility. Millrun is a byproduct
\nfrom dry milling wheat into flour and contains
\nvarying amounts of the bran, middlings, screening, and
\nshorts fractions. The digestible nutrient content of millrun
\nis not well known. Effects of xylanase supplementation
\n(0 or 4,000 units\/kg of diet) on energy, AA, P,
\nand Ca digestibilities were studied in a wheat control
\ndiet and 5 diets containing 30% of a by-product (millrun,
\nmiddlings, shorts, screening, or bran) in a 2 \u00d7 6
\nfactorial arrangement of treatments. The wheat control
\ndiet was formulated to contain 3.34 Mcal of DE\/kg and
\n3.0 g of standardized ileal digestible Lys\/Mcal of DE.
\nDiets contained 0.4% chromic oxide. Each of 12 ilealcannulated
\npigs (32.5 \u00b1 2.5 kg) was fed 6 or 7 of 12
\ndiets at 3 times the DE requirement for maintenance in
\nsuccessive 10-d periods for 6 or 7 observations per diet.
\nFeces and ileal digesta were each collected for 2 d. Xylanase
\ntended to increase (P < 0.10) ileal energy digestibility\nby 2.2 percentage units and the DE content by\n0.10 Mcal\/kg of DM and increased (P < 0.05) ileal DM\ndigestibility by 2.8 percentage units; a diet \u00d7 xylanase\ninteraction was not observed. Xylanase increased (P\n< 0.05) total tract energy and DM digestibilities and\nthe DE content. A diet \u00d7 xylanase interaction was observed;\nxylanase increased (P < 0.05) total tract energy\ndigestibility of the millrun diet from 72.1 to 78.9%, DE\ncontent from 3.19 to 3.51 Mcal\/kg of DM, and DM digestibility\nfrom 71.5 to 78.6%. Diet affected (P < 0.05)\nand xylanase improved (P < 0.05) digestibility and digestible\ncontents of some AA in diets and by-products,\nincluding Lys, Thr, and Val. Xylanase increased (P <\n0.05) Lys digestibility by 13.8, 5.0, 5.2, 6.0, and 14.1\npercentage units in millrun, middlings, shorts, screening,\nand bran, respectively. Diet affected (P < 0.01)\ntotal tract P and Ca digestibilities. Xylanase increased\n(P < 0.05) digestible P and Ca contents. In summary,\nnutrient digestibility varies among wheat by-products.\nMillrun contained 2.65 Mcal of DE\/kg of DM, which\nxylanase increased to 3.56 Mcal of DE\/kg of DM. Xylanase\nimproved nutrient digestibility and DE content\nin wheat by-products; and the extent of improvement\ndepended on the by-product. Xylanase supplementation\nmay maximize opportunities to include wheat byproducts\nin swine diets and ameliorate reductions in\nnutrient digestibility that may be associated with arabinoxylans.\n<\/p>\n","protected":false},"excerpt":{"rendered":"
Wheat by-products are feedstuffs that vary in nutritional value, partly because of arabinoxylans that limit nutrient digestibility. Millrun is a byproduct from dry milling wheat into flour and contains varying amounts of the bran, middlings, screening, and shorts fractions. The digestible nutrient content of millrun is not well known. Effects of xylanase supplementation (0 or […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[930],"tags":[1809,8882,580,13816,2854,5981,6000,576,3965,19644,26175,577,1287,599,9034,27278,6904,46,530,1067,2790,269,8981,23277,13330,7788,15916,3255,79,14,33,16262,17743,20912,35,3768,20911,4874,18011,52,6053,934,4241,15819,9790],"class_list":["post-4071","post","type-post","status-publish","format-standard","hentry","category-production","tag-acid","tag-al","tag-amino-acids","tag-ass","tag-bin","tag-by-product","tag-by-products","tag-calcium","tag-content","tag-dd","tag-de-content-digestibility-wiki","tag-diet","tag-diets","tag-digestibility","tag-effects-of-xylanase-supplementation-on-the-apparent-digestibility-and-digestible-content-of-energyand-calcium-in-wheat-by-prodiucts-from-dry-miliing-fed-to-grower-pigs","tag-energy","tag-fee","tag-feed","tag-feeds","tag-grower","tag-grower-pigs","tag-heat","tag-ileal-digesta","tag-lca","tag-lou","tag-millrun","tag-nortey-t-n-j-f-patience-j-s-sands-n-l-trottier-and-r-t-zijlstra-2008-effects-of-xylanase-supplementation-on-digestibility-and-digestible-content-of-energy-amino-acids-phosphorus-and-calc","tag-nutrient-digestibility","tag-nutrition","tag-pig","tag-pigs","tag-pl","tag-prod","tag-some","tag-swine","tag-swine-diets","tag-t","tag-tan","tag-tot","tag-treatment","tag-use","tag-wheat","tag-xylanase","tag-xylanase-and-apparent-digestibility-in-pigs","tag-xylanase-swine"],"_links":{"self":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/4071","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/comments?post=4071"}],"version-history":[{"count":0,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/4071\/revisions"}],"wp:attachment":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/media?parent=4071"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/categories?post=4071"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/tags?post=4071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}