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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 (http://creativecommons.org/licenses/by/4.0/).
The influence of the addition of BCAA on the concentration of three BCKAs in serum of pigs fed different levels of dietary BCAA (KIV: α-ketoisovalerate; KMV: ketoisoleucine; KIC: α-ketoisocaproate). a, b Means the same compounds different significantly (p < 0.05).