Growth performance, non‐specific immunity and Vibrio parahaemolyticus resistance of Pacific white shrimp, Litopenaeus vannamei, in response to various microbial‐derived additives

A study was conducted to evaluate the effects of various microbial‐derived additives on the growth performance, non‐specific immunity and disease resistance of Litopenaeus vannamei. Shrimp were fed diets supplemented with 5 g/kg multi‐species probiotic (MSP), 5 g/kg dried lactic acid bacteria fermentate (LF), 5 g/kg dried yeast fermentate (YF), 7.5 g/kg cell wall‐broken yeast extract (BY), 5 g/kg multi‐enzyme preparation (MEP), or 50 g/kg complex probiotics and enzyme (CPE). Results showed that the specific growth rate of shrimp in all treatment groups, except the LF group, was significantly enhanced (p