Artikel Jurnal EFEKTIVITAS PEMBERIAN BAKTERI Bacillus polymyxa MELALUI PAKAN TERHADAP IMUNITAS NON SPESIFIK UDANG VANNAMEI (Litopenaeus vannamei)

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The addition of Bacillus polymyxa bacteria in the feed as immunostimulant (Litopenaeus vannamei). The aim of this research is to know the effect of using Bacillus polymyxa bacteria in non-specific immunity of vannamei shrimp. This research consisted of Bacillus polymyxa bacteria 0 cell / ml as control (A), 10 cells / ml (B), 10 cells / ml as control (A), 10 cells / cell ml (C) and 10 8 cell / ml (D) and each treatment is repeated 3 times. This research has been done in 15 days. Parameters observed in this research were total haemocyte count (THC), phagocytosis activity, differential haemocyte count (DHC) and water quality. The results showed that Bacillus polymyxa bacteria of 10 was able to improve the THC value of 6.6×10 cell / ml on the day 10. The DHC value was in the normal range which is hyalin cell was 52-89% and granular cell was 11-48%. The quality of water maintenance media were normally 27.2-28.1 ° C, DO 3.70-3.91ppm, pH 3.70-3.91, and salinity 30-35 ppt.

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