Methionine – different forms, different bioavailability?

The essential amino acid methionine can be supplied to pig feed using different forms. Most recently, a new form, being feed grade L-methionine, has come onto the market. Recent research says its bioavailability is similar to DL-methionine, which is considered the standard up to now. The amino acid methionine has a number of functions for pigs. Besides serving as an essential amino acid for optimum growth performance, methionine also plays an important role as a methyl donor for DNA methylation