COMPARATIVE STUDY ON FEED ADDITIVES FOR ENHANCING REPRODUCTIVE PERFORMANCE AND ANTIOXIDANT CAPACITY OF FEMALE MACROBRACHIUM ROSENBERGII

This study aimed to explore nutritional strategies for improving the reproductive performance and antioxidant capacity of female Macrobrachium rosenbergii, providing data support for the artificial breeding of this species. The commercial diet (CT, 36% protein, 7.9% fat) was used as the control group, with five experimental diets formulated by adding soybean lecithin (LE), arachidonic acid (AA), astaxanthin (AS), soybean lecithin+arachidonic acid+astaxanthin complex (LE+AA+AS), and compound vitamins and minerals (AM), respectively. These diets were fed to female M. rosenbergii for 8 weeks. After nutritional enrichment, the hepatopancreas index, gonadosomatic index, spawning rate, and relative egg weight of shrimp in different diet groups were compared, as well as the changes of hemolymph biochemical composition, antioxidant capacity, and gonad development-related gene expression level of broodstock. The results showed that: in terms of reproductive performance, the hepatopancreas index of female shrimp in AA, AS, and LE+AA+AS groups was significantly higher (P