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Journal : Mitra Sains

Keanekaragaman dan Prevalensi Bakteri Pada Karapas Cuora amboinensis (Riche in Daudin 1801) Asal Habitat Alam Rahaditiya, Mochammad Viekha; Tantu, Fadly Yasin; Nilawati, Jusri
Mitra Sains Vol 10 No 1 (2022): Maret
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/ms26866579.2022.v10.i1.pp1-11

Abstract

The aim of this research is to identify the diversity of bacterial types and determine the prevalence value of these bacteria on the carapace of C. amboniensis from natural habitats to support the provision of data that can later be used to support captive management activities and conservation actions C. amboniensis was collected manually and 20 individuals were obtained, samples were caught in December 2019. Data from bacterial identification was then used to calculate the prevalence of bacterial diversity. The identification results showed that there were 7 types of bacteria, most of which were Gram negative bacteria. The prevalence values were then calculated to obtain the results of A. caviae (5%), C. jejuni (30%), C. freundii (15%). ), F. breve (25%), L. monocytogenes (15%), P. haemolytica type A (5%), and P. alcaligenes (5%).
Pengkayaan Vitamin C Pada Pakan Silase Keong Mas (Pomacea canaliculata): Efek Terhadap Biomassa Dan Reproduksi Artemia sp. Skala Labolatorium Pramesty, Nur Ifada; Rosyida, Eka; Nilawati, Jusri
Mitra Sains Vol 11 No 2 (2023): September
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/ms26866579.2023.v11.i2.pp115-121

Abstract

Giving vitamin C to feed is very necessary considering that vitamin C is a multivitamin needed by the body. The purpose of this study was to determine the proper dose of vitamin C in the golden snail silage feed in increasing the biomass and reproduction of Artemia sp. The research was conducted at the Laboratory of Water Quality and Aquatic Biology, Department of Fisheries and Maritime Affairs, Faculty of Animal Husbandry and Fisheries, Tadulako University. The variables observed were population density, egg/cyst production, hatching rate, survival rate (SR), water quality. The study used a completely randomized design (CRD) with 5 treatments and 4 replications with 20 experimental units A: control , B: vitamin C 12 mg/L, C: vitamin C 18 mg/L, D: vitamin C 24 mg/L, E: vitamin C 30 mg/L. The results showed that vitamin C enrichment with a concentration of 24 mg/L had a very significant effect (p<0.05) on each variable. Improper concentration of vitamin C in feed enrichment can affect the survival of Artemia sp.