Abstract

Shrimp vannamei (Litopenaeus vannamei) is a kind of shrimp that has important economic value in
Indonesia, one of the inhibiting factors in increasing shrimp production is a disease caused by bacteria
vibrio sp. This disease can cause a high death. This study aims to identify and quantify the number of
Vibrio sp bacteria colonies in the hepatopancreas shrimp vannamei in ponds given probiotics, carried
out in Sampang Tigo Ponds, Degayu –Pekalongan and Central Fish Ponds Brackish Water
Aquaculture (BBPBAP), Jepara. This study was conducted on Monday 13 November 2017 to
Wednesday April 25 2018. The study was conducted on a pond with a density of 100 and 116 tail /
m3. The data of the research results were analyzed descriptively with the help of graphs and tables.
The results showed that the sample of each plot of bacterial colonies exceeded the threshold, that is the
average number of vibrio sp bacterial colonies on hepatopancreas shrimp T2 3,96 x 10
6
CFU/ml and
T3 plots 1,46 x 10
6
CFU/ml followed by shrimp morphological changes that have clinical signs of
vibrio sp bacteria, the state of unbalanced water quality supports the bacterialgrowth.
Keywords: Cultivation, Vannamei shrimp, Vibrio sp, Density