Effect of zinc bacitracin on various hematochemical and production attributes of broiler chickens

抄録

The poultry industry is always at a risk due to high feed prices and frequent disease outbreaks. A global trend of using Antibiotic Growth Promoters (AGPs) for prophylaxis, improvement production, and enhanced growth have entered the poultry industry. Being banned in European countries, the AGPs are still extensively being used in South Asian’s poultry industry which has higher bacterial infections as compared to the European countries. Zinc bacitracin, an AGP, at sub-therapeutic concentration has shown advantageous results in poultry. In this study zinc bacitracin was made in CASVAB University of Balochistan labs and applied for the trial. In this study birds were distributed in three groups, group 1 used feed with no feed additive, group 2 used feed with 20 mg zinc bacitracin/kg and group 3 used 40 mg zinc bacitracin/kg in feed as feed additive. Body weight gain was observed as 513.7 grams (g) as compare to control group of birds which was 424.3 (g), which is highly significant and significant with group 2. Final body weight was observed 1250.1 (g) in group 3 significant with group 2 observed 1200.0 (g) and highly significant with group 3 which was 1100.2 (g). Mortality rate in group 3 was observed 1.8 which is highly significant P ≤ 0.05 with group 3 and significant with group 2. We also observed significant result in group 3 as compare to group 2 and 1, regarding to blood leukogram, hemogram and various serum chemistry attributes.