Evaluation of dietary incorporation of bakery waste on nutrient utilization and performance of broiler chicken

The present study aimed at evaluating the nutritional composition of bakery waste and its impact on growth and nutrient utilization of broiler chickens. A total of 240 day-old broiler chicks were randomly allocated to 5 groups and each group consisted of 4 replicates each having 12 chicks. Each group was given pre-starter (0-14days), starter (15-21 days) and finisher ration (22 day onwards) with control group receiving maize-based basal diet (control) and T1, T2, T3 and T4 groups receiving diet replaced with bakery waste @ 5, 10, 15 and 20 % of maize, respectively in order to meet the nutritional requirements as per ICAR (2013). It was observed that feed intake was comparable among all groups during 1st, 4th and 6th week. However, in week 2, 3 and 5 feed intake was significantly highest (P<0.05) in T3, control and T3 respectively. During 1st, 2nd and 6th week, the average body weight (g) was comparable in all five groups while the average body weight was significantly higher (P<0.05) in control group during 3rd, 4th and 5th week. Feed conversion ratio (FCR) of all five groups at pre-starter, starter and finisher phases did not vary significantly irrespective of different diets fed to them. Protein efficiency ratio (PER) during week 1 and 5 was significantly highest (P<0.05) in control group and comparable among all groups during week 2, 3, 4 and 6. Cumulative feed intake was significantly highest in T3 group during pre-starter and finisher phase and in control group during phase whereas, no significant variation was observed for cumulative body weight, FCR and PER in birds of different treatment groups. It was observed that the DM, OM, CF and NFE intake (g) during the metabolism trial was significantly (P<0.05) highest in control group than other groups while that of EE and TA in T4 group.