Interaction of group size and stocking density on egg production performance of Japanese quail.
90 Japanese quails were reared in 2 group sizes (GS; 6 and 9 birds/cage) and 3 stocking densities (SD; 150, 175 and 200 cm2/bird) from 50 to 125 days of age. The smaller group had higher egg production and feed conversion than those in the larger group. There was a slight difference in weight gain, feed intake and egg quality characteristics between 2 groups. Birds in the intermediate SD had higher feed intake and weight gain than those in other SD. However, SD did not affect feed conversion and egg production. Albumen index and fresh albumen weight were higher (P<0.01) in birds in the lower SD than those in other SD. Egg production was higher (P<0.05) in the smaller GS and in the intermediate SD than in the larger GS and other SD.