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Effect of tulsi (Ocium sanctum) leaves extract as a growth promoter in broiler production

Achinta Kumar Biswas, Md. Mamunur Rahman, Md. Zakir Hassan, Salma Sultana, Mohammad Mahmudur Rahman, Mahbub Mostofa.

This study was conducted to determine the efficacy of tulsi (Ocimum sanctum) leaves extract as a growth promoter in broilers from January to June 2013 under Dept. of Pharmacology, Bangladesh agricultural University, Mymensingh-2022, Bangladesh. Fourty number of day old broiler chicks were taken and after seven days divided into two groups A and B. The B group was supplemented with tulsi leaves extract @ 1ml/litre in drinking water. Weekly observations were recorded for live body weight gain up to 5th weeks and blood test was performed at 17th and 35th days age of broiler to study hematological changes between control A and treatment B group. No significant difference in hematological changes was observed in both treatment and control group in 1st week of age but significant change in body weight gain was observed on 35th day. They are 1500 g (control) and 1650 g (treated). The cost of production and economic study was carried out and it was observed that net profit in control group was 5.33 T.K/Kg broiler and in treatment group was 13.33 T.K/Kg broiler. Bacterial sensitivity test was positive in case of Escherichia coli and produced zone of inhibition 0.5 cm and other was negative.

Key words: tulsi leaves extracts; growth promoter; broiler; weight gain

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