Data for meta-analysis need standardization—a response to “Assessing the nutritional equivalency of DL-methionine and L-methionine in broiler chickens: a meta-analytical study” by Asasi et al.

• Andreas Lemme,
• Ali Afsar

Affiliations

Andreas Lemme

Evonik Operations GmbH, Hanau, Germany; Corresponding author:

Ali Afsar

Evonik Iran, Teheran, Iran