Effects of different feed restriction methods on performance and ascites disorder in Arian broiler chickens

The study was an effort to evaluate effect of different methods of feed restriction on performance, carcass traits, mortality and ascites disorder in Arian broiler chickens. Four hundred Arian broiler chicks were used in a completely randomized design with four experimental groups (feed restriction methods) and four replicates of ten chicks (totally 16 pens). Four experimental treatments were treatment 1 (T1): control (no restriction feed), treatment 2 (T2): feed restriction as 25 gram feed per chick since 9 until 14 days old; treatment 3 (T3): feed restriction as 8 hour per day since 9 until 24 days old; treatment 4 (T4): feed restriction since 9 until 18 days old. Results indicated that the feed restrictions methods have different significant effects on daily body weight gain and feed intake in different periods of age (p0.05). But, the methods affected significantly total and ascites mortality in broiler chickens and blood hematocrit (p