ERFORMANCE, CARCASS CHARACTERISTICS AND BLOOD PARAMETERS OF BROILER USING PROBIOTICS

Abstract

A three months long (October to December, 2016) study was conducted in experimental poultry farm and laboratories of Chittagong Veterinary and Animal Sciences University (CVASU), Chittagong, Bangladesh to observe the effect of probiotics on performance, carcass quality and biochemical parameters of broiler Chicken. A total of 90 birds were allocated in completely randomized design (CRD) in three dietary treatment groups having three replications per treatment. The bird groups were treated either without probiotic (T0/control) or with probiotics (T1 treated with PROBIO-5; T2 treated with Polybiotic). Performance data ( live weight, weight gain, feed intake, feed conversion) were taken for 4 weeks. After the end of 4th weeks 2 birds from each replication were slaughtered to known the carcass parameters and blood serum was also collected from birds for analyzing. Result showed that live weight, cumulative live weight, live weight gain was increased significantly (P<0.01) at 3rd and 4th weeks of age of birds of T1 and T2 groups in comparison with control (T0). However, T2 (Polybiotic) group gained better weight than T1 group. Feed intake was increased significantly (P<0.01) in probiotic treatment groups (T1 and T2) compared to control. Feed conversion (FC) and cumulative feed conversion was significantly (P<0.01) better in probiotic treatment groups at 3rd and 4th weeks compared to control. Best feed conversion was found in T2 group. Difference in eviscerated weight was significant (P<0.05) among the treatment groups. No significant differences (P>0.05) were observed in weight of primal parts (i.e. drumstick, thigh, breast, back, neck, wing) and internal edible offal (i.e. gizzard and proventriculus, heart, liver, abdominal and neck fat) of birds of different treatment groups. Insignificant (P>0.05) result was also found in different blood parameters (i.e. glucose, SGPT, SGOT, total protein, cholesterol, creatinine, triglyceride) of birds. Cost benefit analysis showed that Net profit (Tk./broiler), were increased in T1 and T2 groups than control (T0). T2 group showed highest profit among all the treatment groups. Mixing of probiotics at regular diet of broilers would be helpful in improving performance of broiler. Thus increase profitability of broiler farming.