Reparative potentials of commensal-derived cellular components in juvenile Lateolabrax maculatus fed high soybean meal diet: Insight into growth performance, immunity, antioxidant capacity and liver health

Xi-Yue Ding; Zi-Yan Liu; Hong-Ling Yang; Guo-He Cai; Sha Li; Ji-Dan Ye; Chun-Xiao Zhang; Yun-Zhang Sun

Aquaculture Reports (Aug 2024)

Reparative potentials of commensal-derived cellular components in juvenile Lateolabrax maculatus fed high soybean meal diet: Insight into growth performance, immunity, antioxidant capacity and liver health

Xi-Yue Ding,
Zi-Yan Liu,
Hong-Ling Yang,
Guo-He Cai,
Sha Li,
Ji-Dan Ye,
Chun-Xiao Zhang,
Yun-Zhang Sun

Affiliations

Xi-Yue Ding: State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen 361021, China
Zi-Yan Liu: State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen 361021, China; School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
Hong-Ling Yang: State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen 361021, China; Xiamen Key Laboratory for Feed Quality Testing and Safety Evaluation, Fisheries College of Jimei University, Xiamen 361021, China
Guo-He Cai: State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen 361021, China; Xiamen Key Laboratory for Feed Quality Testing and Safety Evaluation, Fisheries College of Jimei University, Xiamen 361021, China
Sha Li: State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen 361021, China
Ji-Dan Ye: State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen 361021, China; Xiamen Key Laboratory for Feed Quality Testing and Safety Evaluation, Fisheries College of Jimei University, Xiamen 361021, China
Chun-Xiao Zhang: State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen 361021, China; Xiamen Key Laboratory for Feed Quality Testing and Safety Evaluation, Fisheries College of Jimei University, Xiamen 361021, China
Yun-Zhang Sun: State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen 361021, China; Xiamen Key Laboratory for Feed Quality Testing and Safety Evaluation, Fisheries College of Jimei University, Xiamen 361021, China; The Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College of Jimei University, Xiamen 361021, China; Correspondence to: Fisheries College, Jimei University, Xiamen 361021, China

Journal volume & issue: Vol. 37
p. 102204

Abstract

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An eight-week feeding trial was designed to estimate the effects of commensal Bacillus siamensis LF4-derived whole cell wall (CW), cell wall protein (CWP), lipoteichoic acid (LTA) and peptidoglycan (PGN) supplementation in a high soybean meal (SM) diet on the growth, immunity and liver health of spotted seabass (Lateolabrax maculatus). Fish continuously fed low SM (containing 16 % SM) and high SM (containing 40 % SM) diets were served as positive (LSM) and negative (HSM) control, respectively. After feeding high SM diet for 28 days, fish were fortified with B. siamensis LF4-derived CW, CWP, LTA or PGN until 56 days. The results showed that CW, LTA, and PGN application significantly increased FBW, WGR, and SGR (P<0.05), but not affect CF, VSI, HSI, IFR, ILI, and ISI (P＞0.05) in spotted seabass (L. maculatus) fed with high SM diet. Distal intestinal protease activity reduction caused by dietary high SM inclusion was significantly repaired when spotted seabass (L. maculatus) fortified with LTA and PGN (P<0.05). CW, LTA and PGN administration effectively increased serum immunity by enhancing ACP activity and C3, C4, IgM contents and reduced IL-1β content in serum of spotted seabass (L. maculatus) fed high SM diet (P<0.05). Significantly decreased serum MDA content in groups CW, LTA and PGN and significantly increased liver GSH content in group CWP were observed as compared to those in group HSM (P<0.05). Dietary CW, LTA and PGN supplementation, rather than CWP, repaired SM-induced liver injury by improving liver morphology and significantly reducing GOT and GPT activities (P<0.05). In summary, CW, LTA and PGN derived from B. siamensis LF4 effectively repaired SM-induced growth, feed utilization, immunity suppression and liver injury in spotted seabass (L. maculatus).

Published in Aquaculture Reports

ISSN: 2352-5134 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Agriculture: Aquaculture. Fisheries. Angling
Website: http://www.journals.elsevier.com/aquaculture-reports/

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