{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,24]],"date-time":"2026-01-24T17:48:47Z","timestamp":1769276927248,"version":"3.49.0"},"reference-count":48,"publisher":"Oxford University Press (OUP)","issue":"6","license":[{"start":{"date-parts":[[2022,5,15]],"date-time":"2022-05-15T00:00:00Z","timestamp":1652572800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,6,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Increased fermentable carbohydrates (e.g., \u03b2-glucan, amylose) may increase endogenous losses including for P, and thereby reduce apparent total tract digestibility (ATTD) of P. The present study assessed effects of barley cultivars varying in fermentable starch and fiber on apparent ileal digestibility (AID) and ATTD of P, myo-inositol 1,2,3,4,5,6-hexakis (dihydrogen phosphate; InsP6) and Ca, and standardized total tract digestibility (STTD) of P and the presence of lower inositol phosphates (InsP) compared to wheat. In a 6 (period) \u00d7 5 (diet) Youden square, seven ileal-cannulated barrows (initial BW, 27.7 kg) were fed diets containing 80% of one of five cereal grains differing in amylose, \u03b2-glucan, and fiber content: 1) high-fermentable, high-\u03b2-glucan, hull-less barley (HFB); 2) high-fermentable, high-amylose, hull-less barley (HFA); 3) moderate-fermentable, hull-less barley (MFB); 4) low-fermentable, hulled barley (LFB); and 5) low-fermentable, Canadian Western Red Spring wheat (LFW). On dry matter (DM) basis, cereal grains contained between 0.32% to 0.53% total P and 0.24% to 0.50% InsP6-P. The InsP6-2-P was calculated as the sum of all detected InsP-P (InsP6-P to InsP2-P) in the sample. The P release of degraded InsP-P was calculated by using the following equation: sum InsP6-2-Pdiet (g\/kg DM) \u00d7 (AID or ATTD sum InsP6-2-P (%)\/ 100). Data were analyzed using a mixed model with diet as fixed effect, and pig and period as random effects. On DM basis, diets contained 41.4% to 50.6% starch, 0.88% to 8.54% \u03b2-glucan, 0.81% to 0.89% total P, and 0.19% to 0.35% InsP6-P. The MFB, LFB, and LFW had greater (P &amp;lt; 0.05) diet AID of P than HFB and HFA, and MFB had greater (P &amp;lt; 0.05) diet ATTD and STTD of P than HFB. The ATTD of InsP6-P was greater (P &amp;lt; 0.05) for HFB than LFB and the ATTD of the sum InsP6-2-P was greater (P &amp;lt; 0.05) for HFB and HFA than LFB. Total tract P release was greater (P &amp;lt; 0.001) for HFB, HFA, and LFW than MFB and LFB. The LFW had greater (P &amp;lt; 0.05) ATTD of Ca than LFB. Diet \u03b2-glucan content was not correlated with STTD of P (R2 = 0.03) or ATTD of InsP6 (R2 = 0.05). In conclusion, cereal grains high in fermentable fiber, e.g., amylose and \u03b2-glucans included in specific hull-less barley cultivars, had lower diet AID, ATTD, and STTD of P, but greater ATTD of InsP6-P and sum InsP6-2-P. Carbohydrate fermentation, thus, results in greater total tract P release from InsP-P hydrolysis.<\/jats:p>","DOI":"10.1093\/jas\/skac181","type":"journal-article","created":{"date-parts":[[2022,5,15]],"date-time":"2022-05-15T17:46:00Z","timestamp":1652636760000},"source":"Crossref","is-referenced-by-count":5,"title":["Cereal grain fiber composition modifies phosphorus digestibility in grower pigs"],"prefix":"10.1093","volume":"100","author":[{"given":"Charlotte M E","family":"Heyer","sequence":"first","affiliation":[{"name":"Department of Agricultural, Food and Nutritional Science, University of Alberta , Edmonton, AB T6G 2P5 , Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Janelle M","family":"Fouhse","sequence":"additional","affiliation":[{"name":"Department of Agricultural, Food and Nutritional Science, University of Alberta , Edmonton, AB T6G 2P5 , Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thava","family":"Vasanthan","sequence":"additional","affiliation":[{"name":"Department of Agricultural, Food and Nutritional Science, University of Alberta , Edmonton, AB T6G 2P5 , Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1875-8453","authenticated-orcid":false,"given":"Ruurd T","family":"Zijlstra","sequence":"additional","affiliation":[{"name":"Department of Agricultural, Food and Nutritional Science, University of Alberta , Edmonton, AB T6G 2P5 , Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2022,5,15]]},"reference":[{"key":"2022060616393963700_CIT0001","author":"AAFC","year":"2020"},{"key":"2022060616393963700_CIT0002","first-page":"903","article-title":"Digestion and balance techniques in pigs.","volume-title":"Swine nutrition","author":"Adeola","year":"2001"},{"key":"2022060616393963700_CIT0003","doi-asserted-by":"crossref","first-page":"471","DOI":"10.1093\/japr\/11.4.471","article-title":"Phytic acid chemistry: Influence on phytin-phosphorus availability and phytase efficacy","volume":"11","author":"Angel","year":"2002","journal-title":"J. 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