Supplementation of prebiotic compounds, including short-chain fructooligosaccharides (scFOS) has been shown to confer benefits on nutrient utilization, growth, and disease resistance of various animal species through improved gastrointestinal (GI) microbiota. However, potential uses of prebiotics for shrimp have not been defined. A 6-wk feeding trial was conducted in a recirculating system to determine the effects of scFOS supplementation on growth performance, immune functions, and GI microbiota composition of Pacific white shrimp (Litopenaeus vannamei). scFOS was supplemented in a nutritionally complete diet (35% crude protein) at 0.025, 0.0500, 0.075, 0.100, 0.200, 0.400, and 0.800% by weight. After 6 wk of feeding, shrimp fed 0, 0.1, and 0.8% scFOS were sampled for assays of immune function and GI microbiota. Dietary supplementation of scFOS did not improve weight gain, feed conversion ratio, or survival of shrimp. Denaturing gradient gel electrophoresis analysis suggested the intestinal tract microbial community from shrimp fed the basal diet was different from that of shrimp fed the scFOS diets [similarity coefficient (SC) = 74.9%)], although the intestinal tract microbial community from shrimp fed the scFOS-supplemented diets was very similar (SC = 92.3%). All the bacterial species contributing to the GI microbial differences were identified, although most of them are uncultured species. Both total hemocyte count and hemocyte respiratory burst increased (P < 0.05) by incremental dietary supplementation of scFOS (0-0.8%). This study is the first to our knowledge to show that dietary scFOS can selectively support growth of certain bacterial species in the GI tract of shrimp and enhance immunity, which may facilitate development of alternative strategies, including novel probiotics and synbiotics, for shrimp growth and health management.
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http://dx.doi.org/10.1093/jn/137.12.2763 | DOI Listing |
Animals (Basel)
January 2025
College of Bio-Systems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China.
Feeding frequency is crucial for the growth and development of white shrimp () at various life stages. Although higher feeding frequencies can enhance growth, manual feeding methods significantly increase labor costs. Automatic feeding systems offer a cost-effective and efficient alternative, yet their application in intensive shrimp culture remains under-researched.
View Article and Find Full Text PDFHeliyon
January 2025
Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna, Bangladesh.
The present study was conducted to evaluate the efficacy of extract against the white spot syndrome virus (WSSV) in black tiger shrimp () following oral administration . The methanol extract derived from the extraction was sprayed into feed at a concentration of 0.0 %, 0.
View Article and Find Full Text PDFAppl Environ Microbiol
January 2025
School of Marine Science and Policy, University of Delaware, Lewes, Delaware, USA.
Unlabelled: Fish gut microbial communities are important for the breakdown and energy harvesting of the host diet. Microbes within the fish gut are selected by environmental and evolutionary factors. To understand how fish gut microbial communities are shaped by diet, three tropical fish species (hawkfish, ; yellow tang, ; and triggerfish, ) were fed piscivorous (fish meal pellets), herbivorous (seaweed), and invertivorous (shrimp) diets, respectively.
View Article and Find Full Text PDFFish Shellfish Immunol
January 2025
Vet Products Research & Innovation Center Co., Ltd, 141 Moo9, Thailand Science Park, Innovation Clusters (INC2) Tower D 11th floor, Room No. INCD1108-INCD1111 Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand.
Recently, microsporidiosis caused by a microsporidian [Ecytonucleospora (Enterocytozoon) hepatopenaei, EHP] has been found to seriously impact the global shrimp industry. The aim of this study was to evaluate the therapeutic effects of fumaric acid (FA) in EHP-infected Pacific white shrimp (Penaeus vannamei). In the first 2 groups, non-EHP-infected shrimp were fed FA-supplemented (10 g/kg diet) or normal feed (CM+ and CM-, respectively).
View Article and Find Full Text PDFPLoS One
January 2025
Department of Biological Sciences, Purdue University Fort Wayne, Fort Wayne, Indiana, United States of America.
Present study aimed at improving the immune and antioxidant response of Pacific white shrimp (Litopenaeus vannamei) cultured at high stocking density fed with 0.2% supplementation of lauric acid (LA) and N-acetyl-L-cysteine (NAC). Shrimp (initial average weight = 0.
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