Effects of methionine supplementation in broiler rations containing palm kernel cake
1996
Vatanasit, S. | Pralomkarn, W. (Prince of Songkla Univ., Songkhla (Thailand). Faculty of Natural Resources. Dept. of Animal Science)
Two experiments were conducted to determine the effects of methionine supplementation in broiler rations containing palm kernel cake (PKC). In experiment I, 5 rations were formulated containing 0, 20, 30, 20(+0.10 percent methionine) and 30(+0.10 percent methionine) percent for 0-4 weeks of age and 0, 30, 40, 30 (+0.03 percent methionine) and 40(+0.02 percent methionine) percent for 4-6 weeks. From 0-4 weeks, there was no significant difference (P0.05) in feed intake between the treatments. Live-weight gains of chicken fed 20 percent PKC (35.5 g/day) and 30 percent PKC (34.3 g/day) were significant (P0.05) lower than that fed the control diet (39.7 g/day). However, there was not significant difference (P0.05) in live-weight gain between chicken fed 20 percent PKC plus methionine and the control. Chicken fed control diet had significantly (P0.01) lower feed conversion ratio than did other treatments. It was evided that methionine supplementation improved feed efficiency. From 4-6 weeks, the control group had significantly (P0.05) higher live-weight gain and better feed conversion ratio than other groups. There was no significant difference (P0.05) in live-weight gain and feed conversion ratio between chicken fed PKC, diets. In experiment II, the objective as to reduce the level of crude protein (CP) in diets methionine supplementation. It was found that methionine supplementation could reduce CP in broiler diets by 2 percent at both 0-3 and 3-6 weeks of age.
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