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. 2021 Apr 29;11(5):1285. doi: 10.3390/ani11051285

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Principal component analysis (PCA) biplot of wheat control (blue), wheat enzyme (purple), maize control (red), and maize enzyme (green) dietary treatments (DT). The scores were plotted for PC1 and PC2. The amount of variance explained by each PC is shown in parentheses. The variables used were: (i) NSP-related parameters; ileal (Ril) and total tract (Rex) recovery of Ara, Xyl and non-glucosyl NSP (NGP), and Ara and Xyl contents (% w/w) in the gizzard (Giz) and the ceca (Cec), (ii) acetate (Ace), butyrate (But), propionate (Pro) and total short-chain fatty acids (SCFA) contents in the ceca, (iii) nutrient digestibility parameters: apparent ileal digestibility (AID) and apparent total tract digestibility (ATTD) of organic matter (OM) starch (STA), and crude protein (CP), and (iv) animal growth parameters: body weight (BW), feed conversion ratio (FCR), average daily feed intake (ADFI), and average daily gain (ADG).