The relative effectiveness of liquid MHA-FA
compared with DL-methionine in broiler chickens
- a dose-response experiment

A dose-response experiment with chicken broilers was performed in order to examine the relative effectiveness of liquid methionine-hydroxy analog-free acid (MHA-FA) and DL-methionine (DL-Met). Chickens were fed graded levels of either DL-Met or liquid MHA-FA from 1 to 42 days of age. During the experiment body weight gain (BWG) and feed conversion ratio (FCR) were determined. Increasing levels of DL-methionine and MHA-FA in the diet significantly improved BWG and FCR. Based on multiple non-linear regression analysis, the relative effectiveness of liquid MHA-FA was 64 and 59% compared with DL-Met with respect to BWG and FCR, respectively.

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Assigning DOI numbers, introducing articles from supplements and recent publications to POL-index database, maintaining anti-plagiarism detection, electronic system to proceed manuscripts and webpage of the Journal with interactive pdf files, and language correction of manuscripts published in Journal of Animal and Feed Sciences are financed in the years 2018–2019 by the Ministry of Science and Higher Education from the funds for science popularization activities, Agreement No. 631/P-DUN/2018.

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