Abstract
This experiment aims to determine the effect and the best dose of Chaetoceros ceratosporum diatomae utilization in feed formula for post larvae of tiger shrimp (Penaeus monodon Fab.) growth and immunity to Vibrio harveyi infection. This research applied Completely Randomized Design (CRD) with 4 treatments and 3 replications. The treatment use  Chaetoceros ceratosporum diatomae in feed formula (iso protein 39.02% and iso energy 3.58 kcal/g diet) in different doses, i.e. treatment A = 0 %; B = 3.04 %; C = 6.0 8%; D = 9.12 %. Observed parameters were Survival Rate, Growth Rate, Food Conversion Ratio (FCR) and Protein Efficiency Ratio (PER). Result showed that Chaetoceros ceratosporum diatomae utilization in feed formula affect the increase of growth and immunity of post larvae of tiger shrimp (Penaeus monodon Fab.) to Vibrio harveyi infection. The best dose in feed formula ranged from 5,75% – 5,95%. Key words: Chaetoceros ceratosporum, balance energy, feed conversion, protein efficiency, Vibrio harveyi, tiger shrimp
Highlights
In the decade of 1991, Indonesia experienced a peak production of shrimp; ranked second after Thailand, post 1991, one of the problem is bacterial infection [1].Several species of Vibrio bacteria that can be isolated from diseased shrimp are Vibrio parahaemolyticus, Vibrio harveyi, Vibrio alginolyticus and Vibrio vulvificalis, while Vibrio damsela, Vibrio anguillarum and Vibrio fluvialis rarely found
This research aimed to determine the effect and best dose utilization of diatomaceous Chaetoceros ceratosporum in feed formula to increase growth and immunity of shrimp postlarvae (Penaeus monodon Fab.) towards the infection of Vibrio harveyi
Materials used in this research are : Post larvae (PL) 20 Shrimp (Penaeus monodon Fabricus), compounds for feed formula, dried Chaetoceros ceratosporum, Vibrio harveyi bacteria and sea water with 30 ppt salinity as culture media
Summary
In the decade of 1991, Indonesia experienced a peak production of shrimp; ranked second after Thailand, post 1991, one of the problem is bacterial infection [1]. Prevention and control of disease in shrimp should be done through an integrated approach to the factors that influence the onset of disease. These factors were associated with bacterial virulence and the shrimp’s immunity. Information on the association between the nutrients composition balance with the immune system of shrimp was not completed explored yet. This research aimed to determine the effect and best dose utilization of diatomaceous Chaetoceros ceratosporum in feed formula to increase growth and immunity of shrimp postlarvae (Penaeus monodon Fab.) towards the infection of Vibrio harveyi
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