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Effect of Green Tea Powder as an Alternative of Antibiotic on Growth Performance, Meat Quality and Blood Lipid Profile of Broiler

M. M. Rahman
Department of General Animal Science and Nutrition, Faculty of Veterinary and Animal Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

M. S. Hossain
Department of Pathology and Parasitology, Faculty of Veterinary and Animal Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

M. H. Abid
Department of Microbiology and Virology, Jhenaidah Government Veterinary College, Jhenaidah, Bangladesh

M. R. Nabi
Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh, Bangladesh.

M. A. Hamid
Department of General Animal Science and Nutrition, Faculty of Veterinary and Animal Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

Abstract/ Executive Summary:

A study was conducted with green tea powder to evaluate the effect on broiler growth, meat quality and the development of internal organ. The broiler growth, meat quality and the blood profile have been improving day by day by using green tea powder with poultry feed. The experiment design should be well planned. Biosecurity of experimental design was maintained properly. Feed intake, feed conversion ratio is efficient in experiment birds. The live weight gain was significantly (P<0.05) higher in the group of Green Tea in the feed. The initial body weights of group T₀, T₁, T₂, T₃ and T₄ day of the experiment were 176.8 ±1, 184.2±1.3, 185.1±1, 190.2±084, 180.2±1.22 gm respectively and after 35th day of experiment, final body weight were 1972±3.22, 1992±2.77, 1940±3.17, 1778±3.52, 1918±2.81 gm respectively. The net body weight gains were 1795.2±2.22, 1807.8±1.47, 1754.9±2.17, 1727.8±2.68, 1737.8±1.52 gm respectively and economics of production were analyzed and found the net profit per broiler. Green tea powder has significantly impact on feed intake T₀, _T1, T₂, T₃ and T₄ respectively 3058± 4.23, 2971±4.01, 2995±5.57, 3208±4.3 and 3226±5.25 and increase body weight. Here the total cholesterol is lower in the group of broiler supplied green tea 0.5% and compare to other group of GT and antibiotic group. Triglyceride level showed significant (P<0.01) differences among different groups where highest level was found in _T1 and lowest in T₃ groups due to green tea powder concentration of blood plasma of broiler chicken.

Keywords: Green tea powder, Broiler, Antibiotic

Location: Kornia, adjacent to the HSTU campus, Basherhat, Dinajpur, Bangladesh

Start Date:

End Date:

Program Area: Animal Health and Management

Commodity: Broiler, Meat, Antibiotic

Objectives:

The present research aimed to examine the effect of different levels of green tea powder as a substitute for an antibiotic in broilers diets on productivity, carcass and meat quality, to evaluate the effect of powder of green tea on lipid profile of blood plasma of broiler chicken and to find out appropriate green tea probiotics for chicken.

Methodology:

The birds were reared in a personal farm at Kornia, adjacent to the HSTU campus, Basherhat, Dinajpur. The required laboratory works were done with proper management at operation theater, Faculty of veterinary medicine HSTU, Dinajpur. Experimental birds: Hundred day old broiler chicks of “Cobb 500” strain were purchased from the dealer of Nourish poultry Hatchery Ltd. The chicks were properly exposed to heat that means brooding and management was carefully maintained as the company manual for up to 7 days. The birds were assigned to treatments with 4 replications having 5 chicks in each using completely randomized designed (CRD). Total of 100 of seven (07) days old “Cobb 500” broilers were randomly divided into five (5) equal groups (5×20) and each group is divided into 4 replication i.e. 4×5, then the group was numbered as group T₀, T₁, T₂, T₃ and T₄. Group T0 was considered as control and fed with only commercial ration. Group T₁ was treated with supplementation of 5 gm of Green Tea per kg of feed, Group T₂ was treated with supplementation of 10 gm of Green Tea per kg of feed Group T₃ was treated with supplementation of 20gm of Green Tea per kg of feed and Group T₄ was treated with supplementation of 0.1 gm of Oxytetracyclin per kg of feed. Initial body weight of each bird was recorded (at day 07) before separation of birds in bamboo made floor (Macha). In every week the Body weight gain and feed intake was recorded up to the end of the experiment ( i.e. 35 days of bird age) and total 10 birds were sacrificed for taking visceral organ weight and collect blood sample for hematological test (Total cholesterol, Triglyceride, LDL and HDL). Research diets T₀ = Control Group (Basal diet with supplement) + Fresh Drinking water; T₁ = Basal diet + 0.5 % GT powder+ fresh Drinking water; _T2 = Basal diet + 1 % GT powder+ fresh Drinking water; T₃ = Basal diet + 2 % GT powder+ fresh Drinking water; T₄ = Basal diet + Oxytertracycline 0.1gm/kg+ fresh Drinking water. Blood Collection: Blood was collected from wing vein from each group in sterile syringe for hematological measurement as soon as possible of blood collection. Total cholesterol (TC) determination procedure: At first blood sample was collected from wing vein of the experimental birds. Then the sample was centrifuged in the centrifugal machine at 1000 rpm for 15 minutes. Then the blood serum was separated from test tube. Cholesterol reagent was added in the serum test tube. Incubate the test tube for 10 minutes in room temperature. Optical density was measured. Then the concentration was determined. Finally the result was wrote down and analyzed. Determination of HDL: The High-Density lipid (HDL) reagent was added in blood serum in test tube. Then the test tube was centrifuged in the centrifugal machine at 1000 rpm for 15 minutes. 10 microliter of serum was taken and determined for cholesterol level.

Source of Information: Bangl. J. Vet. Med. (2018). 16(1): 23–29 ISSN: 1729-7893 (Print), 2308-0922 (Online)

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The live weight and live weight gain of broilers supplemented with different levels of green tea and antibiotic compared with the control group were presented. Here T₀ was control group, T₁ was 0.5% of GT powder, T₂ was 1.0% of GT powder, T₃ was 2.0% of GT powder and T₄ was 0.1 gm of OTC per kg feed. The live weight was significantly higher in T₁ group in compared with other groups. The live weight were almost similar (P>0.05) in all group from 2nd to 4th weeks of age. At 5th weeks of age, the body weight among the groups were significantly varied. Live weight gain did not significantly differed at 1st and 4th weeks of experiment but differed at 2nd, 3rd and 5th weeks of age. The live weight gain was significantly(P<0.05) higher in the group of Green Tea @ 0.5% (T₁- 451 gm) compared to control, antibiotic as well as other tea groups. At the end of 5th weeks of age, the highest (P<0.05) body weight and total body weight gain were found in broilers supplemented with green tea compared to the antibiotic and control group. Highest body weight was observed in the GT@ 0.5% (1992 g/b) group followed by GT@ 1.0% (1940 g/b), GT@2% (1778 g/b) and control group (1972 g/b) and antibiotic(1874g/b) respectively. CONCLUSIONS: From the above experiment we can conclude that green tea is considered for the prevention and treatment of many poultry diseases. It improves poultry health and increases farm production. Experimental broiler has good FCR and higher body weight gain during rearing with green tea powder. Experimental design must be more accurate and scientific for future research. More research studies are needed to conduct for drawing a right condition especially on green tea powder because of limited works are done in this potential supplement. All poultry farmers should be aware of the great impact of green tea powder on poultry health and poultry production for economic development of Bangladesh.

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