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Evaluation of the Effects of Probiotic in Controlling Vibrio Alginolyticus of<br />

Crab Scylla Tranquebarica<br />

Sabirah binti Shaharom<br />

Supervisor: Prof Dr Najiah binti Musa<br />

Bachelor of Applied Science (Fisheries)<br />

School of Fisheries and Aquaculture Science<br />

The aim of this study was to determine the culture performance of Scylla<br />

tranquebarica larvae with the use of probiotic, Bacillus licheniformis. The probiotic<br />

effect of Bacillus licheniformis was tested on crab larvae with concentration of (10 5<br />

CFU/ml ) for 7 days before an immersion challenge with pathogenic Vibrio alginolyticus<br />

at LC5010 3 CFU/ mL for 24 h. After 7 days of probiotic treatment, the results shows<br />

that survival rate of crab larvae in probiotic treatment was significantly higher<br />

(p

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