1
|
Peralta-Sánchez JM, Rabelo-Ruiz M, Martín-Platero AM, Vizcaíno AJ, Flores-Moreno S, Macías-Vidal J, Martos-Sitcha JA, Alarcón-López FJ, Baños A, Valdivia E, Martínez-Bueno M. Microalgae and phytase dietary supplementation improved growth and gut microbiota in juvenile European seabass (Dicentrarchus labrax). BMC Genomics 2024; 25:838. [PMID: 39242559 PMCID: PMC11378478 DOI: 10.1186/s12864-024-10760-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 09/02/2024] [Indexed: 09/09/2024] Open
Abstract
Fishmeal and fish oil have been the main sources of protein and fatty acid for aquaculture fish. However, their increasing price and low sustainability have led the aquafeed industry to seek sustainable alternative feedstuffs to meet the nutritional requirements of fish and improve their health and performance. Plant proteins have been successfully used to replace fishery derivatives in aquafeeds, but the presence of anti-nutritional substances is a potential drawback of this approach. Thus, it has been reported that phytate breakdown can be caused by feed supplementation with exogenous phytase. The inclusion of microalgae has been proposed to improve gut functionality in fish fed diets with a high vegetable protein content. The aim of this study was to evaluate the effect on the growth and gut microbiota of European seabass (Dicentrarchus labrax) juveniles of a diet containing a blend of microalgae (Arthrospira platensis and Nannochloropsis gaditana) and different concentrations of phytase. An 83-day feeding trial was conducted, comprising four experimental diets with 2.5% microalgae and 500, 1,000, 2,000, or 10,000 phytase units (FTU)/kg feed and a microalgae- and phytase-free control diet. At the end of the trial, a significantly increased body weight was observed in fish fed the diet with the highest phytase concentration (10,000 FTU/kg) versus controls, although the gut bacterial composition did not differ from controls in alpha or beta diversity with either majority (Weighted UniFrac) or minority bacterial strains (Unweighted UniFrac). In comparison to the control group, the groups fed diets with 1,000 or 2,000 FTU/kg diets had a lower alpha diversity (Shannon's diversity index), while those fed diets with 500 FTU/kg or 1,000 FTU/kg showed distinct clusters in beta diversity (involving minority ASVs). According to these findings, the diet containing the 2.5% microalgae blend with 10,000 FTU/kg may be useful to increase the aquafeed quality and sustain the growth performance of juvenile European seabass.
Collapse
Affiliation(s)
| | - Miguel Rabelo-Ruiz
- Department of Microbiology, Universidad de Granada, Avda. Fuentenueva, s/n, Granada, 18071, Spain
| | | | - Antonio Jesús Vizcaíno
- Department of Biology and Geology, Campus de Excelencia Internacional del Mar (CEI·MAR), Universidad de Almería, Ctra. Sacramento s/n 04120 La Cañada de San Urbano, Almería, Spain
| | - Sara Flores-Moreno
- Department of Biology and Geology, Campus de Excelencia Internacional del Mar (CEI·MAR), Universidad de Almería, Ctra. Sacramento s/n 04120 La Cañada de San Urbano, Almería, Spain
- Lifebioencapsulation SL, Parque Científíco PITA, El Alquián, Almería, 04131, Spain
| | - Judit Macías-Vidal
- Department of Biology, Faculty of Marine and Environmental Sciences, Campus de Excelencia Internacional del Mar (CEI·MAR), Instituto Universitario de Investigación Marina (INMAR), Universidad de Cádiz, 11519 Puerto Real, Cádiz, Spain
| | | | - Francisco Javier Alarcón-López
- Department of Biology and Geology, Campus de Excelencia Internacional del Mar (CEI·MAR), Universidad de Almería, Ctra. Sacramento s/n 04120 La Cañada de San Urbano, Almería, Spain
- Lifebioencapsulation SL, Parque Científíco PITA, El Alquián, Almería, 04131, Spain
| | - Alberto Baños
- Department of I+D+i, Global Feed S.L, Tervalis Group, Huelva, 21001, Spain
| | - Eva Valdivia
- Department of Microbiology, Universidad de Granada, Avda. Fuentenueva, s/n, Granada, 18071, Spain
- Department of Microbiology and Biotechnology - DMC Research Centre, Camino de Jayena s/n, Granada, 18620, Spain
- Institute of Biotechnology, Universidad de Granada, Granada, 18071, Spain
| | - Manuel Martínez-Bueno
- Department of Microbiology, Universidad de Granada, Avda. Fuentenueva, s/n, Granada, 18071, Spain
- Institute of Biotechnology, Universidad de Granada, Granada, 18071, Spain
| |
Collapse
|
2
|
Liao X, Lan Y, Wang W, Zhang J, Shao R, Yin Z, Gudmundsson GH, Bergman P, Mai K, Ai Q, Wan M. Vitamin D influences gut microbiota and acetate production in zebrafish ( Danio rerio) to promote intestinal immunity against invading pathogens. Gut Microbes 2023; 15:2187575. [PMID: 36879441 PMCID: PMC10012952 DOI: 10.1080/19490976.2023.2187575] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 02/28/2023] [Indexed: 03/08/2023] Open
Abstract
Although evidence has shown that vitamin D (VD) influences gut homeostasis, limited knowledge is available how VD regulates intestinal immunity against bacterial infection. In the present study, cyp2r1 mutant zebrafish, lacking the capacity to metabolize VD, and zebrafish fed a diet devoid of VD, were utilized as VD-deficient animal models. Our results confirmed that the expression of antimicrobial peptides (AMPs) and IL-22 was restrained and the susceptibility to bacterial infection was increased in VD-deficient zebrafish. Furthermore, VD induced AMP expression in zebrafish intestine by activating IL-22 signaling, which was dependent on the microbiota. Further analysis uncovered that the abundance of the acetate-producer Cetobacterium in VD-deficient zebrafish was reduced compared to WT fish. Unexpectedly, VD promoted the growth and acetate production of Cetobacterium somerae under culture in vitro. Importantly, acetate treatment rescued the suppressed expression of β-defensins in VD-deficient zebrafish. Finally, neutrophils contributed to VD-induced AMP expression in zebrafish. In conclusion, our study elucidated that VD modulated gut microbiota composition and production of short-chain fatty acids (SCFAs) in zebrafish intestine, leading to enhanced immunity.
Collapse
Affiliation(s)
- Xinmeng Liao
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China
| | - Yawen Lan
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China
| | - Wentao Wang
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China
| | - Jinjin Zhang
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China
| | - Rui Shao
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China
| | - Zhan Yin
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Gudmundur H. Gudmundsson
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
- Biomedical Center, University of Iceland, Reykjavik, Iceland
| | - Peter Bergman
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
- The Immunodeficiency Unit, Infectious Disease Clinic, Karolinska University Hospital, Stockholm, Sweden
| | - Kangsen Mai
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China
- Pilot National Laboratory of Marine Science and Technology, Qingdao, China
| | - Qinghui Ai
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China
- Pilot National Laboratory of Marine Science and Technology, Qingdao, China
| | - Min Wan
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China
- Pilot National Laboratory of Marine Science and Technology, Qingdao, China
| |
Collapse
|
3
|
Sheng Z, Turchini GM, Xu J, Fang Z, Chen N, Xie R, Zhang H, Li S. Functional Properties of Protein Hydrolysates on Growth, Digestive Enzyme Activities, Protein Metabolism, and Intestinal Health of Larval Largemouth Bass (Micropterus salmoides). Front Immunol 2022; 13:913024. [PMID: 35928824 PMCID: PMC9343713 DOI: 10.3389/fimmu.2022.913024] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 06/13/2022] [Indexed: 11/30/2022] Open
Abstract
The present study was conducted to investigate the effects of dietary inclusion of protein hydrolysates on growth performance, digestive enzyme activities, protein metabolism, and intestinal health in larval largemouth bass (Micropterus salmoides). The experimental feeding trial presented in this study was based on five isonitrogenous and isolipidic diets formulated with graded inclusion levels of protein hydrolysates, and it showed that protein hydrolysates improved growth performance, reduced larval deformity rate, and increased the activity of digestive enzymes, including pepsin and trypsin. Gene expression results revealed that the supplementation of protein hydrolysates upregulated the expression of intestinal amino acid transporters LAT2 and peptide transporter 2 (PepT2), as well as the amino acid transporters LAT1 in muscle. Dietary provision of protein hydrolysates activated the target of rapamycin (TOR) pathway including the up-regulation of TOR and AKT1, and down-regulation of 4EBP1. Additionally, the expression of genes involved in the amino acids response (AAR) pathway, ATF4 and REDD1, were inhibited. Protein hydrolysates inhibited the transcription of some pro-inflammatory cytokines, including IL-8 and 5-LOX, but promoted the expression of anti-inflammatory cytokines TGF-β and IL-10. The 16S rRNA analysis, using V3-V4 region, indicated that dietary protein hydrolysates supplementation reduced the diversity of the intestine microbial community, increased the enrichment of Plesiomonas and reduced the enrichment of Staphylococcus at the genus level. In summary, protein hydrolysates have been shown to be an active and useful supplement to positively complement other protein sources in the diets for largemouth bass larvae, and this study provided novel insights on the beneficial roles and possible mechanisms of action of dietary protein hydrolysates in improving the overall performance of fish larvae.
Collapse
Affiliation(s)
- Zhengyu Sheng
- Research Centre of the Ministry of Agriculture and Rural Affairs on Environmental Ecology and Fish Nutrition, Shanghai Ocean University, Shanghai, China
| | - Giovanni M. Turchini
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, VIC, Australia
| | - Jianming Xu
- Research Centre of the Ministry of Agriculture and Rural Affairs on Environmental Ecology and Fish Nutrition, Shanghai Ocean University, Shanghai, China
| | - Zishuo Fang
- Research Centre of the Ministry of Agriculture and Rural Affairs on Environmental Ecology and Fish Nutrition, Shanghai Ocean University, Shanghai, China
| | - Naisong Chen
- Research Centre of the Ministry of Agriculture and Rural Affairs on Environmental Ecology and Fish Nutrition, Shanghai Ocean University, Shanghai, China
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, VIC, Australia
| | - Ruitao Xie
- Key Laboratory of Aquatic, Livestock and Poultry Feed Science and Technology in South China, Ministry of Agriculture and Rural Affairs, Zhangjiang, China
| | - Haitao Zhang
- Key Laboratory of Aquatic, Livestock and Poultry Feed Science and Technology in South China, Ministry of Agriculture and Rural Affairs, Zhangjiang, China
| | - Songlin Li
- Research Centre of the Ministry of Agriculture and Rural Affairs on Environmental Ecology and Fish Nutrition, Shanghai Ocean University, Shanghai, China
- *Correspondence: Songlin Li,
| |
Collapse
|
4
|
Altmann BA, Rosenau S. Spirulina as Animal Feed: Opportunities and Challenges. Foods 2022; 11:foods11070965. [PMID: 35407052 PMCID: PMC8997485 DOI: 10.3390/foods11070965] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/15/2022] [Accepted: 03/18/2022] [Indexed: 01/12/2023] Open
Abstract
Increasing demand for protein, especially animal-based proteins and the large amounts of protein feed inputs required for production, has largely driven the research on spirulina as an animal feed. This short communication summarizes the results from two larger research projects investigating spirulina as an animal feed. Overall, spirulina appears to be a prospective protein source in poultry and pork production, as well as aquaculture. However, spirulina as a feed can have implications for system productivity and end product quality, depending on animal production system. Neither swine productivity nor product quality was negatively affected with spirulina as a feed, which is likely due to the low amounts of protein required in swine finishing diets. Spirulina as a feed does negatively affect poultry and fish productivity as well as alter product quality, primarily raw meat color. Therefore, future research focused on sustainability analysis and product processing and acceptance should investigate the trade-offs of incorporating spirulina into poultry and fish diets.
Collapse
|