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This experiment was conducted to investigate the efficacy of tulsi leaves (Ocimum sanctum) extract supplementation in drinking water as a growth promoter in broiler chickens. A total No. of 30 day old Cobb-500 broiler chicks was purchased from local hatchery and after seven days of acclimatization chicks were randomly divided into two groups A and B in equal number. The group A was kept as a control and not treated. The group B was supplemented with tulsi leaves extract with feed and water. Weekly observations were recorded for live body weight gain up to 30 days and hematological tests were performed at 30th day’s age of broiler to evaluate the hematological changes between two groups. The initial body weight of groups A and B on 1st day of this experiment were 42.80±10.31 gm and 42.68±6.90 gm respectively and after 30th days of experiment final body weight were 1530± 33.07 gm and 1600± 44.80 gm respectively; the net body weight gain from 7th day were 1488±41.12 gm and 1551±39.29 gm respectively and economics of production was analyzed and found that net profit per broiler was Tk. 24.51 and Tk. 32.50 respectively. The treatment group B was reported statistically significant (at 1% level) increased 16.43% for live body weight than the control group A. The hematological parameters TEC, ESR and PCV value of treatment group showed significant difference, while Hemoglobin (Hb) estimation did not show significant difference from control group. Therefore, the findings of the study results suggest that supplemented with tulsi leaves extract with feed and water can improve the growth performance of broiler.

Efficacy as a growth promoter of Tulsi leaves extract in broiler production with carcass characteristics and hematological profile