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International Journal of Poultry Science

.: Home > International Journal of Poultry Science > 2009 > Volume 8 Number 1 > J.W. Ng’ambi, P.M. Nakalebe, D. Norris, M.S. Malatje and C.A. Mbajiorgu

Effects of Dietary Energy Level and Tanniferous Acacia karroo Leaf Meal Level of Supplementation at Finisher Stage on Performance and Carcass Characteristics of Ross 308 Broiler Chickens in South Africa

J.W. Ng’ambi, P.M. Nakalebe, D. Norris, M.S. Malatje and C.A. Mbajiorgu
Department of Animal Production, University of Limpopo, Private Bag X 1106, Sovenga 0727, South Africa
Abstract :

The study was conducted to determine the effect of dietary energy level and tanniniferous Acacia
karroo leaf meal level of supplementation at finisher stage on performance and carcass characteristics of
male and female Ross 308 broiler chickens. Three hundred and sixty, 21 days old male and female broiler
chickens were assigned to twelve treatments with three replications of ten birds in a 2 (sex) x 3 (dietary
energy level) x 3 (tanniniferous Acacia karroo leaf meal level) factorial, complete randomized design.
Supplementation with Acacia karroo leaf meal had no effect on diet intake, digestibility and live weight of
broiler chickens. However, supplementation with 9 and 12 g of Acacia karroo leaf meal per kg DM feed
reduced fat pad weights in male broiler chickens by 26 and 29% points, respectively. Similarly,
supplementation with 9 and 12 g of Acacia karroo leaf meal per kg DM feed reduced fat pad weights in
female chickens by 26% points. These reductions were achieved without any significant reduction in feed
intake and digestibility. However, the physiological explanation for this effect is not clear and it, thus, merits
further investigation.

Keywords :
Ross 308 broiler chickens, Acacia karroo, Fat pad, digestibility, nitrogen retention

Date Deposited : 05 Jul 2011 10:10

Last Modified : 05 Jul 2011 10:10

Official URL: http://www.pjbs.org/ijps/ijps.htm

Volume 8, Number 1, - 2009 , ISSN 1682-8356

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