Effects of cage and floor rearing systems on broiler chickens in Nangarhar, Afghanistan

This research was accomplished Over 90 one-day broiler chickens in 42 days based on the record of their daily behaviors at Nangarhar University, in Agriculture Faculty research farm. When the chickens were brought from the city, they were having 40gr average weight and they were randomly distributed into two groups with (2×3) factorial design where each group was divided into 3 replications. Each replication of each group had 15 chickens. The first group, the cage group, which was divided into three replications: C1T1R1, C2T1R2 and C3T1R3 and the second group, floor group, which was divided into three replications: F1T2R1, F2T2R2 and F3T2R3, were placed in research farm. Both groups were vaccinated against new castel and infection Bural disease. Our factors were weight gaining, feed gaining and FCR. As a result this, research showed that in the first five weeks floor rearing group was not having significantly growth changing (p>0.05) comparing cage group, on sixth week a significant change (p<0.05)was between the two, both the groups were having significantly change (p<0.05) in the ratio of food changing during all weeks. Moreover, cage group was having significant change (p<0.05) in daily food gaining comparing on the floor group. As a whole, this research shows that cage rearing system and floor rearing system have significant changes and has great impacts on daily food gaining and FCR, but has no special impact on weight gaining.