Effects of Lysine in the Drinking Water of Growing Swine

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Abstract
ALTHOUGH Osborne and Mendel (1914) showed that lysine was required in the diets of nonruminants, it was not until the report of Mertz, Shelton and Beeson (1949) that lysine was shown to be essential in the nutrition of swine. Several investigators (Acker, Catron and Hays, 1959; Noland, Mitchell and Scott, 1959; Magruder, Sherman and Reynolds, 1961; Aldinger and Roberts, 1963; Nielsen et al., 1963) have reported improvements in rate and efficiency of gain when pigs of post weaning age were fed 10 to 12% protein corn-soybean meal diets supplemented with lysine but no improvement when 13 to 14% protein diets were supplemented with lysine. It is now possible and sometimes expedient to administer certain ingredients to the pig by metering them into the water supply. Research has not been reported on the efficiency of administering lysine to the pig in this way. Therefore, the studies reported herein were conducted to determine the effects of lysine supplementation to the drinking water of pigs fed low-protein diets on rate of gain, feed conversion efficiency and certain blood constituents of growing swine. Copyright © 1970. American Society of Animal Science . Copyright 1970 by American Society of Animal Science

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