Corn substitution using fermented solid cassava-waste on broiler chicken

The objective of the research was to examine unfermented solid cassava-waste (uscw) and fermented solid cassava-waste (fscw) as the substitution of corn in broiler ration. two hundred and ten birds of one-week-male broiler chicken were divided into seven kinds of one-way treatment of completely randomized design. five replications were used for each treatment; there were six chickens in each replication. the substitution levels of corn in broiler ration by uscw and fscw were 0% (control),10,20,and 30%. the result showed that corn substitution up to 20% using uscw and fscw did not affect the digestibility of feed (df),digestibility of soluble protein (dsp) and crude protein (dcp),and digestibility of starch (ds). substitution up to 30% using fscw did not affect the dsp and dcp. however,substitution of uscw at the same level decreased dsp,dcp,df,and ds. corn substitution up to 20% using uscw and fscw did not affect the feed intake (fi),body weight gain (bwg) and feed conversion ratio (fcr). substitution up to 30% using fscw did not affect the bwg and fcr. however,substitution of uscw at the same level decreased bwg and increased fcr. fscw can be used as a substitute for the corn up to 30% without affecting the performance and the values of the nutrient digestibility,meanwhile uscw is only able to substitute corn up to 20%. © 2010 diponegoro university. all rights reserved.