author(s)
Sneh Lata Gupta, Pramod K Tyagi, Praveen K Tyagi, AB Mandal and Om Prakash Dinani

abstract
A biological experiment was undertaken with (4x2) factorial CRD in 45 week old CARI Sonali layers (n=120) assigned to eight treatments (i.e. 2 control + 6 test diets) having 15 replicates with one layer in each replicate for ten weeks (45^th to 54^th week of age). Eight experimental diets (D1 to D8) were prepared by incorporating rice dry distiller grain with soluble (DDGS) without and with protease enzyme at 0, 5, 7.5 and 10% level. All diets had been kept isocaloric and isonitrogenous in nature. Findings of this experiment revealed the significant (P<0.01) increased in feed intake, egg mass and egg production on DDGS feeding. FCR/kg egg mass, FCR/dozen egg production and Net FCR was significantly improved at 5, 7.5 and 10% inclusion level. Maximum improvement at 10% DDGS inclusion level was observed. Beneficial effect of enzyme addition was found in FCR/kg egg mass and Net FCR. Increasing the level of DDGS from 0 to 10% tended to reduce the feed cost significantly (P<0.01).Thus, it may be concluded that rice DDGS can be safely included in the layer diet replacing costly soybean meal at the inclusion level of 10% for economic layer feeding.