Freddy Gena, L. D. Mahfudz, Sumarsono


The objective of this study was to substitute soybean meal with Salvinia molesta in broiler diets and observed the following parameters; carcass, breast muscle, abdominal fat, crude protein digestibility, spleen and bursa of fabricius. A total of 100, 15 days of age Lohman strain broilers with initial mean body weight of ±773.83 g were used in this experiment. The experimental design was Completely Randomized Design (CRD) with 4 dietary treatments consisted of Salvinia molesta meal as follows; T0 = control diet, T1 = 6% Salvinia molesta added, T2 = 12% Salvinia molesta added and T3 = 18% Salvinia molesta added. The treatments were replicated five times with five chicks per experimental unit. Feed and water was offered ad libitum from day 15 to 42 and the chicks were vaccinated against Newcastle Disease and Gumboro at age 4 and 15 days old. The data was analyzed using analysis of variance (ANOVA) and F-test with the aid of statistics analytical program (SPSS, version 16) and for mean comparison Duncan Multiple Range Test (DMRT) was applied after significant treatment difference (P<0.05)among treatments. The results showed that the dietary treatments had significant (P<0.05) effect on broiler carcass percentage among the treatments, T0, T1, T2, T3 were 72.75, 72.06, 68.67, 67.27% respectively. Significantly (P<0.05) higher breast muscle percentage (39.20%) was noticed with control diet followed by T1 (34.52%), T2 (30.05%) and T3 (28.61). The marginal differences were significant (P<0.05). Abdominal fat percentage values were similar for control and T1 but significant (P<0.05) to T2 and T3. Crude protein digestibility was significantly (P<0.05) affected by the treatments and the better value was obtained by control diet (86.30%) numerically and significantly least value (77.42%) obtained was with chickens on diet T3 (18% Salvinia molesta). Based on these results the incorporation of Salvinia molesta in the broilers diet can be recommended however, 6% level produced better results than other treatments with respect to the control diet.

Keywords: Carcass, digestibility, Lohman broiler, Salvinia molesta, soybean meal

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