Comparative effects of Chinese green tea (Camellia sinensis) extract and powder as feed supplements for broiler chickens. Issue 1 (1st January 2018)

• Record Type: Journal Article
• Authors: Jelveh, Keyvan; Rasouli, Behrouz; Seidavi, Alireza; Diarra, Siaka Seriba
• Is Part Of: Journal of applied animal research. Volume 46:Issue 1(2018)
• Page Start: 1114
• Page End: 1117
• Publication Date: 2018-01-01
• Subjects: Natural products -- green tea -- broiler performance; Animal culture -- India -- Periodicals; Animal culture -- Tropics -- Periodicals; 636.005
• DOI: 10.1080/09712119.2018.1466707
• Languages: English
• ISSNs: 0971-2119

Abstract

ABSTRACT: The comparative effects of green tea extract (GTE) and powder (GTP) on performance of broilers were studied. A total of 405-day-old male Ross 308 broiler chicks were randomly assigned to 9 groups containing 3 replicates of 15 chicks each. The treatments consisted of a control and diets supplemented with 4 levels (10, 20, 30 and 40 g/kg) of GTP and GTE. Feed intake and body weight gain were suppressed ( P < .05) by GTP supplementation ( P < .05). The best feed conversion ratio was observed on the GTE supplemented group. The highest mortality rate was recorded on the control and the lowest on the GTP groups ( P < .05). The best economic index was achieved with GTE supplementation of the diet ( P < .05). Relative weights of carcass, breast and drumstick were significantly reduced on GTP compared to GTE ( P < .05). GTE up to 40 g/kg diet will maintain growth and feed utilization but inclusion of the powder even as low as 10 g/kg the diet may compromise feed intake, growth performance and carcass traits. Differences in the polyphenol content of the extract (10.2%) and powder (14.9%) may be reasons these performance results. Further studies on green tea source and method of processing are recommended.