Hariyani Sambali
Staf pengajar pada Program Studi Budidaya Perairan FPIK UNSRAT

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Pemanfaatan media campuran lumpur, kotoran ayam, dan ampas tahu yang difermentasi EM4 untuk budidaya cacing sutra (Tubifex sp.) dengan konsentrasi yang berbeda Yosua Dedy Patongloan; Henneke Pangkey; Hariyani Sambali; Jeffrie F. Mokolensang; Reiny A. Tumbol; Sammy N.J. Longdong
e-Journal BUDIDAYA PERAIRAN Vol. 11 No. 2 (2023): April - Desember
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.v11i2.51753

Abstract

The purpose of this study was to determine differences in the growth of silkworm biomass (Tubifex sp.) in mixed media of sludge, chicken manure, fermented tofu dregs with EM-4 solution with different concentrations. This research was conducted at the Aquaculture Technology Laboratory, Faculty of Fisheries and Marine Sciences, Sam Ratulangi University, Manado. The method used in this study was an experimental method using a completely randomized design (CRD) with 4 treatments, and each treatment had 3 replications. The results showed that the absolute weight gain of silk worms (Tubifex sp.) was highest in treatment medium B which resulted in an average absolute growth of 11.83 grams of biomass, and the best relative growth of silk worms was in treatment B (591.83%). The water quality parameter as supporting data in this study is the temperature of 27.7℃ - 28,4℃, pH 4.7-5.2, and DO 5.9-6.4 mg/l. based on the results of the study it can be concluded that the treatment of tofu dregs fermentation with EM-4 solution at different concentrations for silkworm culture media (Tubifex sp.) had a very significant effect on the absolute growth of silk worms and the relative growth of silk worms. Keywords: biomass, absolute growth, running water system  
Prevalensi dan insidensi ektoparasit pada udang vaname (Litopenaeus vannamei) di tambak CV. Pasifik Delyano Farm Leyda H. Mokoginta; Reni L. Kreckhoff; Reiny A. Tumbol; Sammy N.J. Longdong; Hariyani Sambali; Winda M. Mingkid
e-Journal BUDIDAYA PERAIRAN Vol. 11 No. 2 (2023): April - Desember
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.v11i2.51960

Abstract

This study aimed to inventory the parasites that attack vaname shrimp (Litopenaeus vannamei) and to determine and determine the prevalence and incidence rates of parasites that infect vaname shrimp. The research was carried out at CV. Pasifik Delyano Farm, Iyok Village, District. Bolangitang, Kab. North Mongondow. Parasite identification is carried out in the Laboratory of Aquaculture Technology FPIK Unsrat. The test animals used in this rstudy were vannamei shrimp with a weight ranging from 7-10 grams with a length of 10-15 cm. The number of shrimp samples taken was 10 in the pond. Methods for examining and observing ectoparasites were carried out on the gills, walking legs, swimming legs, and tail of vannamei shrimp and then identified to obtain prevalence and incidence rates. The observation results were then analyzed using prevalence and incidence rate formulas. Based on the research results, two types of parasites were found that infect shrimp, walking legs, swimming legs, and tail, namely Vorticella and Zootanium. Prevalence rates based on parasite type were obtained in Vorticella sp. 40% and Zoothamnium sp 30% in the category of infections that generally occur while the prevalence rate based on organs, swimming legs was higher (0.4%) than in tail (0.3%) and walking legs (0.2%). based on the level of parasite incidence in all observed shrimp organs, Zoothamnium sp. was higher than Vorticella sp.  Keywords: diseases, parasites, aquaculture, intensive cultivation