Methionine: comparing methionine hydroxyl analogues for broilers, with focus on different thermal environments RETRACTION

F.S. DALÓLIO, V.R.S.M. BARROS, L.F.T. ALBINO, P.H.R.F. CAMPOS, J.N. SILVA and S.R.F. PINHEIRO

DOI: https://doi.org/10.1017/S0043933919000230

Published online by Cambridge University Press: 05 April 2019

After publication of the paper entitled ‘Methionine: comparing methionine hydroxyl analogues for broilers, with focus on different thermal environments’ (Dalólio et al., 2019), the journal received a complaint alleging wrong citations and statements, and misleading conclusions. Specifically, the bioequivalence between methionine sources was deemed erroneous. Following COPE (Committee on Publication Ethics) guidelines and due diligence, the editor and publisher investigated this claim with the reviewers, the Board and the authors in detail. The corresponding author acknowledged and accepted the errors, and all authors have been informed of the retraction of the paper. Broadly, the problems with the paper are mainly concerned with misrepresentation of the technical information from the papers they used in their review of commercial methionine products.