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All Journal e-Journal BUDIDAYA PERAIRAN
Magdalena E.F. Kolopita
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Environmental Science

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Penggunaan ragi roti (Saccharomyces cerevisiae) sebagai imunostimulan untuk meningkatkan resistensi ikan mas (Cyprinus carpio L) terhadap infeksi bakteri Aeromonas hydrophila Manoppo, Henky; Kolopita, Magdalena E.F.
e-Journal BUDIDAYA PERAIRAN Vol 4, No 3 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.4.3.2016.14945

Abstract

A research had been conducted to evaluate the use of baker’s yeast as immunostimulant in enhancing the resistance of carp (Cyprinus carpio L) to Aeromonas hydrophila infection.  Experimental fish were obtained from Freshwater Aquaculture Board in Talelu, Minahasa Regency, and transported to the Laboratory of Aquaculture Technology at the Faculty of Fisheries and Marine Science, Sam Ratulangi University. During two weeks of  acclimatization process, fingerlings were fed with commercial feed (pellet) at 5% of body weight per day, twice a day.  After acclimatization, fish was randomly distributed into 15 aquaria with a density of 25 fishes/aquarium. The doses of yeast cells as treatments included 5, 10, 15 and 20 g yeast/kg of pellet while control pellet not supplemented with yeast cell. Fish was fed with treatment pellets for four consecutive weeks at 5% of body weight per day,  twice daily at 09.00 am and 16.00 pm. Afterward, the density of fish were adjusted to 10 fish/aquarium. Fish were then challenged with A. hydrophila through intraperitoneal injection of  0.2 mL of A. hydrophila suspension containing 1x107 cfu/mL. Research result showed that supplementation of yeast cells into fish pellet significantly influenced the resistance of fish to A. hydrophila infection (p<0,01). The highest resistance were observed in fish fed pellet supplemented with 5 g yeast/kg of pellet. Thus, supplementation of  baker’s yeast cells into commercial fish feed was able to increase  resistance of carp to A. hydrophila infection.   Keywords: baker’s yeast, Cyprinus carpio, A. hydrophila, resistance, intraperitoneal injection
Peningkatan Respon Imun Non Spesik Ikan Mas (Cyprinus carpio L) Melalui Pemberian Bawang Putih (Allium Sativum) Lengka, Kedis; Manoppo, Henky; Kolopita, Magdalena E.F.
e-Journal BUDIDAYA PERAIRAN Vol 1, No 2 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.1.2.2013.1912

Abstract

ABSTRACT This research aimed to determine the proper dose of white onion (Allium sativum) powder to stimulate the nonspecific immune response and growth of carp (Cyprinus carpio L). Fish (length 8-12 cm; weight 9.37 g in average) were obtained from BBAT Tatelu (Freshwater Aquaculture Board). After acclimatized in 1000-l fibre tank for two weeks, fish were introduced to 15 glass aquaria (80x40x40 cm) equiped with aeration at a density of 15 fish/aquarium. Fish were fed diet supplemented with white onion powder at five different doses (0, 10, 20, 30 and 40 g/kg diet), twice daily at 5%bw. Data collected included total leucocyte count (TLC), phagocytosis activity and growth of fish. Results showed that after four weeks of feeding, supplementation of white onion powder at 30 g/kg diet was effective to enhance nonspecific immune response and growth of carp. Keywords: Allium sativum, immune response, total leucocyte count, phagocytosis activity
Co-Authors Henky Manoppo Kedis Lengka