Effect of Protein and Amino Acid Status on Lipogenesis by Turkey Poults

Abstract Feeding trials were conducted with Large White turkey poults to determine the role of dietary protein, sulfur amino acid (SAA), and lysine levels on growth and in vitro lipogenesis by turkey poults. A basal, 23% protein diet was formulated to contain 75% of the National Research Council (NRC) requirement for both SAA (8.0 g/kg) and lysine (12.9 g/kg). Lysine hydrochloride and L-methionine were added to the basal diet. A 30% protein diet was formulated to contain 100% of the requirement for SAA and lysine and served as the dietary control treatment. Twenty-three percent protein diets supplemented to contain the required levels of SAA (10.5 g/kg) and lysine (17.0 g/kg) supported growth and feed consumption equal to that attached with the control diet. Glutamic-aspartic amino transferase (GAT) and isocitrate dehydrogenase (ICD) activities were decreased (P Lysine added to 23% protein diets increased (P