EFFECT OF SUPPLEMENTATION OF METHIONINE, BETAINE AND CHOLINE ON THE PERFORMANCE OF BROILER CHICKEN IN EARLY LIFE FED METHIONINE DEFICIENT RATION
M. Rafeeq, T. N. Pasha*, N. Rashid, B. Hilal and I. Shahzad,
Centre for Advance Studies in Vaccinology and Biotechnology University of Balochistan.
*University of Veterinary and Animal Sciences Lahore
Corresponding Author E-mail: email@example.com
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).
Key words: betaine, broiler, choline, methionine, performance.