Research Article: Dietary ethanolic extract of Prosopis juliflora improved immune-antioxidant capacity and resistance to cold water stress in Pacific white shrimp, Litopenaeus vannamei

Prosopis species, particularly Prosopis juliflora are known for their antioxidant, anti-inflammatory, antibacterial, and antifungal properties. The present study evaluated the effect of three doses of dietary ethanolic leaf extract of P. juliflora (ELEPJ), i.e., ۰.۲۵, ۰.۵, and ۱% on the immune- antioxidant system and the resistance to cold water stress in Pacific white shrimp, Litopenaeus vannamei. After ۶۰ days of the feeding trial, the shrimps fed diets containing ۰.۵ and ۱% ELEPJ showed significantly higher lysozyme activity, superoxide dismutase, phenol oxidase, and glutathione peroxidase than those of the control group (p<۰.۰۵). In response to the cold water stress, the shrimp fed diets containing ۰.۵ and ۱% of ELEPJ showed significantly higher stress resistance than the control group. These results suggest the positive effects of ELEPJ on the immune-antioxidant system and stress resistance of L. vannamei and supplementation of ۰.۵-۱% ELEPJ is recommended for the farm-raised shrimp diet.

کلیدواژه ها:

Whiteleg shrimp ، Prosopis juliflora ، Hemolymph ، Immune-antioxidant system ، Stress