Utilization of methionine isomers and analogs by the pig

Abstract

A total of 72 pigs averaging 9.6 ± 1.4 kg were used to evaluate the efficacy of supplemental L-methionine (Met), D-Met, DL-Met and DL-methionine hydroxy analog free acid (DL-HMB) when added to a Met-deficient feather meal-corn-soybean meal-dried whey diet. Growth performance was similar for all diets containing isomolar levels of Met isomers and analogs, and the pigs utilized L-Met, D-Met, DL-Met and DL-HMB with the same molar efficiency. Key words: Pigs, methionine isomers and analogs, growth performance