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Effects of Indigenous Medicinal Plant Tulsi (ocimum Sanctum) Leaves Extract as a Growth Promoter in Broiler

Firoj Alom
Department of Animal Husbandry and Veterinary Science, University of Rajshahi,Rajshahi Sadar-6205

Mahbub Mostofa
Department of Pharmacology, Bangladesh Agricultural University,Mymensingh-2202, Bangladesh

M. Nurul Alam
Department of Pharmacology, Bangladesh Agricultural University,Mymensingh-2202, Bangladesh

M.Golam Sorwar
Department of Pharmacology, Bangladesh Agricultural University,Mymensingh-2202, Bangladesh

Jashim Uddin
Department of Pharmacology, Bangladesh Agricultural University,Mymensingh-2202, Bangladesh

M. Mizanur Rahman
Department of Pharmacology, Bangladesh Agricultural University,Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

The study was conducted to determine the efficacy of Tulsi (Ocimum sanctum ) leaves extract as a growth promoter in broiler. Thirty (30) day-old broiler chicks were purchased from Kazi hatchery and after seven days of acclimatization in the poultry shed of Pharmacology department randomly divided into two groups I0 and I1. No vaccination schedule was practiced and no antibiotics were added in rations. Group was supplemented with Tulsi (Ocimum sanctum) leaves extract @ 2ml/litre in drinking water. Weekly observations were recorded for live body weight gain upto 5th weeks and blood test was performed at 17th and 35th day’s age of broiler to observe the hematological changes between control (Group) and treatment (Group) group. The treatment group (Group A) recorded statistically non- significant for live body weight at 1st and 2nd weeks than that of control group (Group B) but found statistically significant at 3rd (p<0.01), 4th (P<0.05) and 5th (P<0.01) weeks of age and the Hematological parameters (TEC, PCV, Hb and ESR) showed statistically significant (p<0.01) difference as compared to control group.

Keywords: Tulsi, Growth promoter, Broiler

Location: Department of Pharmacology, Bangladesh Agricultural University, Mymensingh

Start Date: 00-00-2014

End Date: 00-00-2014

Program Area: Animal Health and Management

Commodity: Tulshi

Objectives:

1. To study the efficacy of tulsi (Ocimum sanctum) leave extract as a growth promoter and its safety evaluation in broilers.

Methodology:

The experiment was conducted at the Department of Pharmacology, Bangladesh Agricultural University, Mymensingh. Collection and processing of plant material Tulsi (Ocimum sanctum) leaves were selected to determine its efficacy as growth promoter on broilers. Mature and disease free Tulsi (Ocimum sanctum) leaves were collected from Bangladesh Agricultural University campus. Preparation of tulsi fresh juice - After washing, the fresh leaves were cut into small pieces by scissors and water was added at 1:10 ratio. Then juice were prepared by blending the leaves with pestle and motor and stored in a refrigerator at 4°C to maintain the active ingredients of juice. Collection and management of broilers - At first the experimental poultry shed of Pharmacology Department for rearing broiler chicks was properly prepared i.e., the floor and compartment of cages and other surroundings of the shed were cleaned with disinfectant. Day old broiler chicks, 30 (thirty) in number were brought in the experimental shed. Immediately after unloading from the chick boxes the chicks were supplied with Vitamin-C and glucose to prevent the stress occurring during transport. The broiler chicks were kept in the same compartment for 7 days and brooding temperature were maintained accordingly. The litter management was also done very carefully. The starter and finisher broiler rations were supplied to the broiler chicks appropriately. Experimental design - After 7 days all the 30 broiler chicks were divided into 2 groups (Group A and Group B) for assessing the efficacy of Tulsi (Ocimum sanctum) leaves extract as growth promoter on broiler. Chicks of Group B, were kept as control and was not treated. Chicks of Group A, were treated with Tulsi leaves extract (1%) through drinking water @ 2ml/litre for four weeks. All the chicks of treated and control groups were closely observed for 35 days after treatment and following parameters were studied. Clinical examination - The effect of the Tulsi (Ocimum sanctum) leaves extract on body weight of broilers were recorded before and after treatment. Broiler chicks of control and treatment groups were weighed with spring weighing machine. The weight of broiler chicks were taken weekly. The average of these weight was calculated and recorded. Mean live weight gain of each group of chicks on 7th, 14th, 21th, 28th, and 35 th days were recorded. Hematological parameters - Blood samples were collected from wing vein of Broiler of both control and treated groups at 17th and 35th days to study the effect of the Tulsi (Ocimum sanctum) leaves extract and the following parameters were observed: (a) Total erythrocyte count (TEC), (b) Hemoglobin estimation (Hb), (c) Packed cell volume (PCV), and (d) Erythrocyte sedimentation rate (ESR) by using well known methods. Post-mortem examination - Five broilers from each group were slaughtered to observe if there were any pathological changes present on 35th day after treatment. There was no significant pathological changes found in any internal organs of the broilers of treatment group. Statistical analysis - The data were analyzed statistically between control and treated groups of broiler by the well know student’s t test.

Source of Information: Res. Agric. Livest. Fish. Vol. 2, No. 1, April 2015: 97-102; ISSN : P-2409-0603, E-2409-9325

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It can be concluded that supplementation of Tulsi (Ocimum sanctum) leaves extract @ 2ml/liter drinking water of broiler cause significant increase in live body weight and significant change in hematological parameters. Thus Tulsi leaves extract supplementation in the broiler ration may be useful for the safe, economical and efficient production of broiler and this formulation can be used as an alternative to antibiotic growth promoter.

Knowledge Management: Journal