This study was determined to study the effect of organic fertilizer types on Azolla pinnata productivity. Azolla pinnata were cultivated in 50 × 50 × 10 cm (W × L × H) plastic-coated ponds. In order to maintain the acidity level of the media, 10% of rice field mud was added into each pond. Water and compost of animal manures (5 g/L) were added into each pond as treatments. The treatments were: rice field mud (K0), rice field mud + poultry compost (K1), rice field mud + compost of rabbit feces (K2), and rice field mud + compost of goat feces (K3). Each treatment was done in 5 replications. Harvesting was done every 14 days. Results showed that Azolla dry matter production of K1, K2, and K3 were greater than K0 (20.80, 18.20, and 19.00 vs. 10.40 g/2,500 cm2, respectively; P <0.01), but no differences were noted among compost treatments. Crude protein contents of K1 and K2 were greater than K0 and K3 (25.34 and 26.25 vs. 13.11 and 22.96%, respectively; P<0.01). It can be concluded that fertilizing ponds with rabbit or poultry composts is the best in improving Azolla production as well as the crude protein content
