COMPARATIVE EFFICACY OF PROBIOTIC & PREBIOTIC UPON GROWTH PERFORMANCE AND ENTERIC DISEASE IN BROILER

Abstract

Commercial poultry production is ranked among the highest source of animal protein in the world. Microbial infections caused by bacteria and parasites particularly Eimeria has continued to challenge the poultry industry. Antibiotic Growth Promoters (AGP) have been traditionally used to counter microbial infections in poultry. But due to public health concerns, the use of AGP in poultry is either restricted or out rightly banned in several countries. Hence, this review is aimed at highlighting alternative feed supplements that can enhance performance and protect the chickens from microbial infections. The study found that dietary supplements containing probiotic, prebiotic and enzymes are able to enhance performance while protecting the chickens from microbial infection. The study was conducted to evaluate the comparative efficacy of probiotic & prebiotic upon growth performance & enteric disease of broiler chickens. The study is conducted at a trial broiler farm in Gazipur districts of Bangladesh for 30 days which was started on the last week of November, 2017 & extended upto the last week of December,2017.Birds (n=450) were randomly and equally distributed into Six groups (Group A ¹ & A ² , B ¹ & B ² , C ¹ & C ² ) Group A for Probiotic, B for Prebiotic & C for Control and fed on a diet containing Probiotic & Prebiotic 0.5 kg/MT feed respectively for 4 weeks. The body weight (1772.7±56.89) was significantly increased in the treatment groups fed with probiotics diet from 1st days to 30th days old, then the birds fed with prebiotic (1625±35.80). Weight (1394±62.60) was also significantly decreased among the control groups. . A total of 19 chicks died from Group C ¹ (Control group) and 11 Chicks at Group C ² . Total 20% mortality found in control group. Only two birds died in Group B. In Group A there was no visible morbidity and mortality. The birds which were feed with saltose plus have the lowest FCR (1.34) than the broilers fed with agrimos (1.46) and basal diet (1.67).The study suggests that, the efficacy of probiotic is much stronger than prebiotic but both of these are very helpful for prevention of enteric disease & enhancing the growth of broiler chicken. Escherichia coli, Salmonella spp, Clostridium perfringens were the major enteric disease agents found in of the broiler chicken.