This experiment was carried out to evaluation usage different levels of Choline Chloride Supplement (CCS 60%) (0, 500 and 1000 mg/kg) in the basal diet (corn and soybean meal) and their effects on the different parts of carcass weight (breast and thigh) and internal organs weight (liver, heart, spleen, gizzard, proventriculus and abdominal fat) in Japanese quail. A total of 135 Japanese quail were randomly divided in to 3 experimental treatments with 3 replicates (15 birds per pen) and arranged in a completely randomized design. The experimental period lasted 6 weeks and during this period, the birds have free access to feed and water. Experimental diets consisted of: Basal diet 0 mg/kg choline chloride supplement, basal diet with 500 mg/kg choline chloride supplement and basal diet with 1000 kg/kg choline chloride supplement. These diets were isonitrogenous and isoenergetic were given to Japanese quail throughout a 42-d growth period. Data was analyzed with one way ANOVA and means compared with Duncan test. Three male Japanese quail selected with each pen and slaughtered. Result showed choline chloride supplement in all levels not significantly effects on the chilled carcass weight, breasts, thighs weight and gizzards, spleen, hearts and proventriculus weight not affected whit all of treatments. But result showed choline chloride supplement in levels of 1000 and 500 mg/kg (T3 and T2, respectively) significantly decrease the livers weight and abdominal fat deposition (p<0.0001) in relationship to basal diet, as the 3 treatment include of 1000 mg/kg has a highest effects.
