Akademik Veri Yönetim Sistemi
EUROPEAN POULTRY SCIENCE, cilt.78, 2014 (SCI-Expanded)
The effect of day-to-day variability of dietary methionine on feed intake behaviour in relation to body weight was examined in an 8-week experiment. Two body weight groups and four levels of day-to-day variability of methionine (high, medium, low and control) were assigned to eight groups of laying hen in a 2 x 4 factorial design. For each of the eight treatments 16 individually caged laying hens were used. Daily measurements of feed intake, egg production and egg weight were taken for each bird. Body weight of each bird was measured before and after the experiment. High level of day-to-day variation in methionine resulted in decreased feed intake in both body weight groups. Low and medium level of day-to-day variation of methionine showed a tendency to increase feed intake in the low body weight group. Significant differences (P < 0.001) in feed intake, egg production, egg weight, egg mass and methionine intake were observed between the body weight groups. Similarly, when day-to-day variation treatments were compared within each body weight group, significant differences (P < 0.001) were found in feed intake, egg production, egg mass and methionine intake, but not in egg weight.