This research study effect of various mangrove fruit submersion as a bacterial growth resistor is in Euthynnus affinis in the process of preserving the fish. The designed used in this research was with theexperimental design using 4 treatments (Avicennia sp., Sonneratia sp., and Bruguierra sp.) mangrove extract with submersion fruit: water (3:1). The parameters being observed included the organoleptic test, total plate count number test, pH test, moisture content and protein content. The result of the study showed that the lowest total bacterial colonies were found in the treatment of Avicennia sp. mangrove’s fruit extract, which was 7,78×103 col/gr. The use of mangrove fruit extract in this study was able to extend the shelfshelf life for fresh fish for one week with refrigerated temperature.
Tujuan penelitian ini adalah menganalisa efektivitas ekstrak daun pepaya (Carica papaya L.) sebagai pengendali infestasi Argulus sp. pada ikan koi (Cyprinus carpio) dan menganalisa konsentrasi ekstrak daun pepaya (Carica papaya L.) yang tepat untuk pelepasan Argulus sp. pada tubuh ikan koi (Cyprinus carpio). Metode yang digunakan adalah laboratorium eksperimental dengan Rancangan Acak Lengkap (RAL). Perlakuan yang di lakukan adalah P1 (8 ml), P2 (10 ml), P3 ( 12 ml), P4 (14 ml) dengan tiga ulangan. Hasil uji Anova menunjukkan perendaman ekstrak daun pepaya berpengaruh nyata (P>0,05) terhadap waktu pelepasan Argulus sp., waktu kematian Argulus sp.,mortalitas Argulus sp., sedangkan terhadap survival rate (SR)tidak berpengaruh nyata (P<0,05). Ekstrak daun pepaya terbaik bagi pengendalian infestasi Argulus sp. pada ikan koi yaitu pada perlakuan P4 (14 ml) dengan waktu rata-rata kematian 8 menit 90 detik.
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