<![CDATA[The aim of this research was to examined the effectiveness of the used of liquid waste fish preservation in the ration on performance of Mojosari – Pekin crossing duck age 3 - 8 weeks. The material used 120 of male Mojosari - Pekin crossing ducks 3 weeks with an average body weight of 520.30 ± 57.82 g. The experimental design used was Completely Randomized Design (RAL) with 4 treatments and 5 replications, each replications consisted of 6 ducks. The treatment used of liquid waste fish preservation as follows: T0 = 0%, T1 = 2.5%, T2 = 5% and T3 = 7.5%. The data obtained were analyzed using analysis of variance and F test at 5% level then continued Duncan double area test if there was effect of treatment. The results showed that the use of liquid waste fish preservation up to 7,5% level did not have significant effect (P>0,05) on ration consumption, body weight gain and ration conversion, but income over feed cost (IOFC) increased with the use of liquid waste fish preservation up to 5% level. The conclusion of this research is the most effective using liquid waste fish preservation is 2,5%.]]>
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