Carbon-to-Nitrogen Optimization for Vermicomposting Broiler Poultry Litter

The potential benefits of bioconversion of commercial broiler poultry litter (PL) to vermicompost (with Eudrilus eugeniae) were studied by optimizing the carbon-nitrogen ratio (C/N) using coconut (Cocos nucifera) coir pith (CP) and farmyard manure (FM) as co-substrate. In this experiment, after optimizing the carbon to nitrogen ratio (C/N) at the levels of 25, 30, and 35, the pre-composting of the PL followed by vermicomposting was done, and the PL and FM alone were used as the control group. After pre-composting, the earthworms (Eudrilus eugeniae) were introduced, and the vermicomposting process was continued for 90 days, and the samples were analyzed on the 45th and 90th days of vermicomposting. The study revealed a significantly (P<0.05) higher Feed Stock Vermicompost Conversion Ratio (FVCR)