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EFFICACY OF STREPTOCOCCUS AGALACTIAE WHOLE CELL VACCINE WITH ARTEMIA SP. VECTOR FOR THE PREVENTION OF STREPTOCOCCOSIS IN TILAPIA (OREOCHROMIS NILOTICUS) Rusli, Rusli; Suryati , Suryati; Mulyati , Mulyati
Journal of Agriculture Vol. 1 No. 03 (2022): Research Articles, November 2022
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v1i03.2467

Abstract

This study aims to examine the efficacy of S. agalactiae whole cell vaccine orally with Artemia sp as a vaccine vector for prevention against Streptococcosis in tilapia. Fish fry used in the study were 2-3 cm in size that did not carry S. agalactiae bacteria, kept in 3 l volume jars as many as ten heads / jars. Giving the vaccine to fish orally by first soaking the vaccine into Artemia sp.. The length of soaking time of the vaccine is 15, 30, 60, 90, 120 and 150 minutes. The parameters observed were relative percent survival (RPS), antibody titer value, total leukocytes, pagocytic index, and leukocyte differential. The results of the RPS value study showed that the treatment between vaccines was not significantly different, while the treatment of vaccines with controls was significantly different (P<0.05). The highest RPS value was obtained in vaccine immersion treatment in Artemia sp. for 30 minutes and 120 minutes with a value of 93.33%. Furthermore, RPS is 86.67% at 15 and 150 minutes soaking and RPS is 80% at 30 minutes immersion. This shows that the level of vaccine protection against streptococcosis in tilapia fry is very high
Business Development Strategy with SWOT Analysis Method at PT Jaho Mulya Sunjaya Zahrani, Amelia Mutiara; Heru Riza Chakim, Mochamad; Mulyati , Mulyati
Journal of Social Research Vol. 4 No. 9 (2025): Journal of Social Research
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/josr.v4i8.2611

Abstract

Digital marketing has become one of the most effective tools in increasing brand awareness, especially in the academic environment. This study aims to evaluate the effectiveness of digital marketing strategies implemented at Raharja University in increasing brand awareness among students and prospective students. The methods used in this study are surveys and quantitative data analysis, with the population of active students and prospective students who register. The results show that the use of social media and digital content significantly contributes to increasing brand awareness. This research provides important insights for the university in formulating a more effective and efficient marketing strategy.