Department of Animal Production, Federal University of Technology, P.M.B 65, Minna, Niger State, Nigeria; Niger State Ministry of Agriculture, Veterinary Services Division, Bosso, Minna, Nigeria
Ayanwale, B.A., Department of Animal Production, Federal University of Technology, P.M.B 65, Minna, Niger State, Nigeria; Lanko, A.G., Niger State Ministry of Agriculture, Veterinary Services Division, Bosso, Minna, Nigeria; Kudu, Y.S., Department of Animal Production, Federal University of Technology, P.M.B 65, Minna, Niger State, Nigeria
An experiment was conducted to investigate the growth performance, nutrient utilization, egg quality characteristics and cost-benefit values of feeding different levels activated sheabutter tree charcoal to laying pullets. Five experimental diets supplemented with activated sheabutter charcoal were formulated to contain 0.0 (control), 10.0, 20.0, 30.0 and 40.0% levels of the charcoal. A total of 150 day-old pullets were used for the study and were fed the diets till they were 22 weeks of age. The results showed no beneficial effect of feeding activated sheabutter charcoal to pullets up to 15 weeks of age as there were no significant (p>0.05) differences in the performance parameters measured up to this stage. At the laying stage, activated sheabutter charcoal significantly (p<0.05) improved egg weight from (48 ± 3.01) in the control to (54.86 ± 3.01) in 40.0% charcoal level. Percent cracked eggs also reduced significantly (p<0.05) from 15.33% (control) to 0.20% in 40.0% activated sheabutter charcoal level. No significant (p>0.05) effect of activated sheabutter charcoal was observed on the internal egg quality parameters measured. The pullets fed activated charcoal had higher economic returns than the control. The results were attributed to increased mineral intake and utilization enhanced by charcoal supplementation and also improved absorption capacity of charcoal for dietary fat. © Asian Network for Scientific Information, 2006.