The Effect of Feeding Fermented Jatropha curcas Meal on Percentage of Carcass and Giblets of Kampong Chickens

Abstract

Jatropha curcas meal (JCM) is potential as poultry feed due to its rich in nutrients content (24.71% protein). Fermentation of JCM using Rhizopus oligosporus decreased the phorbolester, but the crude fiber and phytic acid were still high. The objective of this experiment was to evaluate the effect of feeding fermented JCM using Rhizopus oligosporus supplemented with cellulase and phytase on percentace of carcass and giblets of kampong chickens. The experiment used 40 birds of 200 kampong chickens which were reared from day old chicks up to 10 weeks of age. This experiment used completely randomized design with 5 treatment diets and 4 replications, each replication used 10 birds. The diets were: T0 (control diet, without JCM), T1 (the diet contained 5% untreated JCM), T2 (the diet contained 5% fermented JCM and cellulase 200 ml/ton), T3 (the diet contained 5% fermented JCM and 1000 FTU phytase), and T4 (the diet contained 5% fermented JCM and cellulase 200 ml/ton and 1000 FTU phytase). The parameters observed were percentage of carcass, heart, liver, spleen, kidney, gizzard and pancreas of 6 and 10 weeks old of the birds. The results showed that feeding untreated or fermented JCM 5% did not influence the percentage of carcass and giblets of 6 weeks old as well as of 10 weeks old kampong chickens, except for the gizzard of 10 weeks old. The gizzard of the T3 was higher (p<0.05) than that of the control. It was concluded that feeding untreated as well as fermented Jatropha curcas 5% was safe for the kampong chickens.