Effect of fortifying Aflatoxin-contaminated feeds with Ugandan bentonite on performance of broiler birds
Journal Title: Applied Science Reports - Year 2013, Vol 3, Issue 1
Abstract
One hundred fifty day-old commercial broiler chicks were reared in six groups with each group containing 25 chicks. The chicks were maintained on two diets namely BSA: broiler starter feed containing 25-35 ppb of aflatoxin and BSB: broiler starter feed containing 25-35 ppb of aflatoxin+0.5% Ugandan bentonite (UB). After three weeks, broiler starter diets were replaced with two diets of broiler finisher mash namely BFA (broiler finisher feed containing 25-35 ppb of aflatoxin) and BFB (broiler finisher feed containing 25-35 ppb of aflatoxin+0.5% UB). During starter and finisher growth phases, highest weight gains (t-test; P<0.0001, df=2) were observed in groups fed of diets containing UB. During the starter phase, the mean weight gained by chicks fed on BSB was 29% higher than the mean weight gained by chicks fed on BSA. Also, feed intake for chicks fed BSB was 15% higher than the mean feed intake for chicks fed on BSA. A similar trend was observed during the finisher phase with the mean weight gain and feed intake for birds fed BFB being 22 and 14% respectively higher than values for birds fed BFA. The mortality in groups fed the diet containing UB was 141% lower than the percentage mortality for groups maintained on diets without UB. These findings are suggestive that UB can be incorporated in animal feeds to detoxify the aflatoxins, reduce mortality, improve dressing percentage of broiler chickens and eventually boost profitability of broiler production systems.
Authors and Affiliations
Swidiq Mugerwa, Emmanuel Zziwa, Jolly Kabirizi
Keywords
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