Dietary probiotic intervention strategies of Lactobacillus acidophilus and Bacillus subtilis co-cultured in Litopenaeus vannamei with low fishmeal diet: insights from immune enhancement, anti-Vibrio and ammonia nitrogen stress
文献类型： 外文期刊
作者： Li, Jin 1 ; Cen, Jin 2 ; Zhou, Qunlan 2 ; Zheng, Xiaochuan 2 ; Wu, Zeqiao 4 ; Li, Zhefeng 4 ; Wang, Yachao 1 ; Jiang, Li 1 ; Sun, Cunxin 2 ; Liu, Bo 2 ;
作者机构： 1.Southwest Univ Sci & Technol, Sch Life Sci & Agr & Forestry, Mianyang 621051, Peoples R China
2.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Key Lab Freshwater Fisheries & Germplasm Resources, Minist Agr & Rural Affairs, Wuxi 214081, Peoples R China
3.Nanjing Agr Univ, Wuxi Fisheries Coll, Wuxi 214128, Peoples R China
4.Hangzhou King Techina Feed Co Ltd, Hangzhou 311100, Peoples R China
关键词： Co-cultured probiotics; Anti-stress; Anti-Vibrio; Fish meal replacement; Antioxidant capacity
期刊名称：FISH & SHELLFISH IMMUNOLOGY （ 影响因子：3.9； 五年影响因子：4.2 ）
ISSN： 1050-4648
年卷期： 2025 年 164 卷
页码：
收录情况： SCI
摘要： This study aimed to investigate the effects of dietary supplementation with co-cultured Lactobacillus acidophilus and Bacillus subtilis (CP) on the growth performance, immunity, stress resistance, and disease resistance of Litopenaeus vannamei fed diets with soybean meal replacing fishmeal. A basal diet served as the control (CT), and experimental diets were formulated by replacing 3 % of fishmeal with soybean meal and supplementing with 0 (LF), 250 (LF + CP250), 500 (LF + CP500), 1000 (LF + CP1000), and 2000 (LF + CP2000) mg/kg of CP. After a 56-day feeding trial, results showed that growth performance in the LF group was significantly lower than that in the CT group, while growth performance in the LF + CP1000 and LF + CP2000 groups was significantly higher compared to the LF group. The LF + CP1000 and LF + CP2000 groups have higher survival rates after Vibrio parahaemolyticus challenge and ammonia nitrogen stress compared to the LF group. Histopathological examination revealed severe vacuolation and deformation of hepatopancreatic tubules in the LF group, whereas the LF + CP1000 and LF + CP2000 groups maintained a relatively intact morphology. Additionally, the activities of immune-related enzymes were significantly lower, and malondialdehyde content was significantly higher in the LF group compared to the LF + CP1000 and LF + CP2000 groups. Furthermore, the dynamic changes in the expression levels of NF-kappa B signaling pathway-related genes in the hepatopancreas were positively correlated with the activities of immune-related enzymes and negatively correlated with MDA content. These results confirmed that CP had the effect of alleviating the immune damage of L. vannamei after soybean meal replaces fish meal.
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