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ThesisItem Open Access Nutritional Evaluation of Azolla (Azolla Pinnata) in Broilers and Layers(Karnataka Veterinary, Animal and Fisheries Sciences University, Bidar, 40681) Bolka, P.C.; Gideon Glori Doss, R.Azolla is a free floating fern in shallow water, contains TA – 29.17, CP – 24.12, CF – 16.25, EE – 3.8 and 26.66 % NFE on DM basis. The average ME of AZM at 10, 20 and 30 % inclusion level was 3051, 2944 and 2788 Kcal / kg and 1827, 1670 and 1678 Kcal/kg, respectively in broiler and layers. In a 42 - day growth trial involving broilers fed 10 iso-nitrogenous and isocaloric diets (0, 2.5, 5, 7.5 and 10 per cent AZM with or without fibre degrading enzyme), non significant (P>0.05) differences among various treatments in body weight gain and feed consumption were evident cumulatively but FCR were significant (P<0.01) cumulatively. Dressing percentage and relative organs weights remain similar. In a similar study ( 84 - day trial ) with 35’ week old layers involving 10 iso-nitrogenous and iso-caloric diets ( 0, 2.5 , 5 , 7.5 , 10 per cent AZM with or without combination of fibre degrading enzyme), significant differences (P<0.01) in cumulative egg production, feed consumption , feed efficiency and mean egg weight were evident. The quality of egg (albumen index, haugh unite score, yolk colour, yolk index) of various groups were highly significant (P<0.01) cumulatively and egg shell thickness were statistically significant (P<0.05). The net returns per bird were higher in AZM based diets (2.5 and 5 %) compare to control. In general the performance of both broilers and layer decreased with the incremental level of AZM. It concluded that AZM can be incorporated upto 5 per cent for better results.