Parthasarathy, R.Kadirvel, R.Kathaperumal, V.TANUVAS2018-02-022018-02-022001-02http://krishikosh.egranth.ac.in/handle/1/5810040267TNV_CRN_2001_V30_I1&2_35-37quatic plants offer a relatively cheap altemative feedstuff as the composition of most of the aquatie plants with reference to protein and other nutrients is comparable to certain leguminous plants. Azolla, a floating fresh water fem, is capable of assimilating atmospheric nitrogen due to the presence of symbiotic algae in leaves (Moore, 1969) and has the potential to double its biomass with in a week. Under the suitable environment, about 70-80 tonnes of dry matter/ha/year is produced (Tally et al., 1977). Azolla has long been used as a fodder for pigs, ducks and fishes (Singh and Subudhi, 1978). In the present study, four different species of Azolla were chemically evaluated to find out its usefulness as a feed ingredient in broiler rations.enVeterinary ScienceArticle