The efficiency of the earthworm Eudrilus eugeniae in the bioconversion of poultry waste of different proportions into micro and macro nutrients was assessed at different intervals. The earthworm maintained in the vermibeds, was utilized for experiment using pots with soil of different proportions of poultry waste such as 30g, 40g, 50g, 60g, 70g, and 90g which were prepared separately and control was also maintained simultaneously. One pot was mixed with the commercial neem to understand the impact of neem on the bioconversion of poultry waste into nutrients. The study was carried out for 20 days with interval of 10 days. The results revealed the potential nature of the earthworm in the biotransformation of poultry waste into micro and macro nutrients. In the neem treatment, the level of nitrogen was decreased when compared to control whereas the nutrients such as potassium and phosphorous were also increased. Similarly the analysis of Fe, Mn, Zn and Cu were also increased in the 70gm and 90gm of poultry wastes and in all other treatments showed lower levels of Fe whereas the Fe in the neem treated was same level as that of control value however in the neem treatment the level of nitrogen was decreased when compared to control. Histological observations were also simultaneously observed and studied the changes in the anatomy of the earthworm in relation to the adaptation to the bioconversion of poultry waste into nutrients.
