Probiotics are defined as live micro organisms that when administered in adequate amounts confer a health benefit on the host.Lactobacillus are a group of rod shaped gram positive non spore forming bacteria.
Lactic acid producing bacteria are the most used probiotics as a feed additive in shrimp culture. It is well known that probiotics have a number of beneficial health effects in shrimp culture. They play an important role in the protection of the host against harmful micro organisms and also strengthen the immune system.
