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nutrition are important factors in pig production influ- pig slaughter weight is determined largely by genetics to minimize ([7–9]; cf. 7 le increase in pproximately s in the USA Choi et al. Journal of Animal Science and Technology (2015) 57:37 DOI 10.1186/s40781-015-0070-4the slaughter weight of finishing pigs with a lower leanScience and Technology, Jinju 52726, South Korea Full list of author information is available at the end of the article[10]. Regarding nutrition, an increase in the plane of nutrition usually results in an increase not only in lean gain but in fat deposition [11, 12], which may also limit * Correspondence