EFFECT OF SUPPLEMENTATION OF METHIONINE, BETAINE AND CHOLINE ON THE PERFORMANCE OF BROILER CHICKEN IN EARLY LIFE FED METHIONINE DEFICIENT RATION Authors: M. Rafeeq, T. N. Pasha, N. Rashid, B. Hilal, I. Shahzad Journal: Journal of Animal and Plant Sciences (JAPS) ISSN: 1018-7081 (Print), 2309-8694 (Online) Volume: 21 Issue: 4 Pages: 778-780 Year: 2011 DOI: NA URL: https://doi.org/NA Publisher: Pakistan Agricultural Scientists Forum Abstract:

The experiment was designed and conducted to evaluate the effect of methionine, betaine and choline in the broiler chicks given low methionine starter ration. Day old broiler chicks (n=250), were randomly divided into five treatment groups (n=5) with five replicates of ten chicks. A low methionine (LM) starter ration was formulated and the treatment groups were (A) LM supplemented with methionine @ 0.14%, (B) LM, (C) LM supplemented with choline @ 0.17%, (D) LM supplemented with betaine @ 0.14% and (E) LM with Betaine @ 0.07% in the starter ration. Choline was added @ 700 mg/kg to treatment groups (A and B). Data of weight gain (WG) and feed intake (FI) were collected from 0-28 days and feed conversion ratio (FCR) was calculated. Statistical analysis of data revealed significant differences among the treatment groups in FI, WG and FCR (P<0.05). Supplementation of Choline and betaine to treatment groups C, D and E respectively did not show results as per treatment group (A) supplemented with methionine. However, betaine supplementation showed better WG and FCR as compared to treatment B and C (P<0.05); but the inclusion rate of betaine had no significant effect on the performance of broiler chicken (P>0.05).

Keywords: betaine, broiler, choline, methionine, performance.