Effects of glutamine and glutamate on nursery piglets fed diets with different digestible lysine content

The objective of the study was to evaluate effects glutamine and glutamate (Gln/Glu) on growth performance immune response nursery pigs fed different digestible lysine content. Two hundred sixteen piglets, weaned at 21 days old, were assigned a randomized block design according their initial body weight (BW), in 2 × factorial arrangement with two levels (control-lys low-lys) Gln/Glu (0 12 g kg-1), nine replicates. At 26 d, piglets consuming low-lys diet not supplemented presented higher (P < 0.01) incidence diarrhea than other treatments. From 32 d age, control-lys diets performed better those 0.01). 42 there correlation between level supplementation for average daily feed intake (ADFI) conversion (FC). improved 0.05) ADFI diets, resulting gain (ADG) BW; however, worse FC. Piglets had serum urea nitrogen concentration (SUN) IgG piglets. In addition, correlated SUN. Dietary from regardless diets’ levels. reducing 10% below requirement negatively affects