Effects of excess arginine on swine growth and plasma amino acid levels

Journal of Animal Science
D L HagemeierR C Wahlstrom

Abstract

One hundred seventy-six crossbred weaned pigs (4 to 5 wk old) were used in two growth trials to determine the effect of excess arginine on pig growth and plasma amino acid levels. In the first 28-d growth trial, two lysine levels (1.03 and 1.26%) and three arginine levels (.94, 1.29 and 1.63%) were used in a nested treatment arrangement. Lysine supplementation improved daily gains (P less than .05), tended to improve feed efficiency (P less than .12) and caused a general reduction in plasma essential amino acid levels. Arginine had no effect on daily gain or feed intake, but pigs fed 1.03% lysine and 1.63% arginine had reduced gain/feed (P less than .05). Arginine did not affect gain/feed of pigs fed 1.26% lysine. Plasma lysine levels were reduced (P less than .06) by excess arginine in pigs fed 1.26% lysine, but not in pigs fed 1.03% lysine. The four treatments for the second 26-d growth trial consisted of three diets containing .92% lysine and either .72, 1.10 or 1.61% arginine and a positive lysine control (1.10% lysine, .72% arginine). Lysine was the limiting amino acid in the basal diet, but arginine had no effect on daily gain, daily feed intake, gain/feed or plasma lysine levels. Plasma threonine and methionine levels we...Continue Reading

Citations

Mar 29, 2003·Journal of Animal Science·P A Lovatto, D Sauvant
Feb 20, 2007·JPEN. Journal of Parenteral and Enteral Nutrition·Carmelo NievesBobbi Langkamp-Henken
Jun 16, 2006·Journal of Animal Science·M S AwawdehD P Gnad
Oct 1, 1988·Nutrition Reviews
May 22, 2007·The Journal of Nutrition·Guoyao WuThomas E Spencer

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