Effect of supplementing broiler chicken diets with green tea extract on the growth performance, lipid profile, antioxidant status and immune response
| Autor: | M. H. Farahat, A. Hernandez-Santana, Tamer M. Abdel-Hamid, F. M. Abdallah |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Meat Antioxidant Animal feed medicine.medical_treatment Green tea extract Biology Feed conversion ratio Antioxidants Camellia sinensis Random Allocation 03 medical and health sciences chemistry.chemical_compound Animal science medicine Animals Butylated hydroxytoluene medicine.diagnostic_test Plant Extracts 0402 animal and dairy science Broiler 04 agricultural and veterinary sciences General Medicine Malondialdehyde Animal Feed Lipids 040201 dairy & animal science Diet Immunity Humoral 030104 developmental biology Biochemistry chemistry Dietary Supplements Animal Science and Zoology Lipid profile Chickens Food Science |
| Zdroj: | British Poultry Science. :1-9 |
| ISSN: | 1466-1799 0007-1668 |
| DOI: | 10.1080/00071668.2016.1196339 |
| Popis: | A trial was conducted to explore the effect of feeding graded concentrations of green tea extract (GTE; 125, 250, 500, 1000 and 2000 mg/kg) on the growth performance, serum lipid profile, liver glutathione-reduced, thigh muscle malondialdehyde and humoral immune response against Newcastle disease virus vaccines of broiler chickens from hatching to 42 d of age. The results of broilers fed on GTE were contrasted to those fed on butylated hydroxytoluene (BHT; 125 mg/kg) or unsupplemented controls. The obtained results revealed no significant difference among treatments in the measured growth performance parameters (body weight, average daily gain, average daily feed intake and feed conversion ratio), per cent liveability and serum lipid profile (total lipid, total cholesterol, high-density, low-density and very low-density lipoprotein cholesterols). Dietary intake of GTE resulted in a significant increase in the liver glutathione-reduced level compared to the control. The glutathione-reduced level of broilers fed on the BHT diet was not significantly different from that of broilers fed on GTE or control diets. Feeding GTE or BHT resulted in a significant decrease in the malondialdehyde level of meat tissue. The specific antibody titre against Newcastle disease virus vaccines was significantly increased at 28 and 35 d of age in broilers fed on diets supplemented with GTE but not with BHT. In conclusion, GTE was found to possess antioxidant and immunostimulant characteristics for broilers when supplemented to their diets, and its optimum inclusion level ranged from 125 to 500 mg/kg. |
| Databáze: | OpenAIRE |
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