scholarly journals A high-resolution map of the gut microbiota in Atlantic salmon (Salmo salar): A basis for comparative gut microbial research

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Karina Gajardo ◽  
Ana Rodiles ◽  
Trond M. Kortner ◽  
Åshild Krogdahl ◽  
Anne Marie Bakke ◽  
...  
Keyword(s):  
High Resolution ◽  
Atlantic Salmon ◽  
Gut Microbiota ◽  
Salmo Salar ◽  
Atlantic Salmon Salmo Salar ◽  
High Resolution Map ◽  
Resolution Map

Atlantic Salmon (Salmo salar L., 1758) Gut Microbiota Profile Correlates with Flesh Pigmentation: Cause or Effect?

2020 ◽  
Vol 22 (6) ◽  
pp. 786-804 ◽  
Author(s):  
Chan D. H. Nguyen ◽  
Gianluca Amoroso ◽  
Tomer Ventura ◽  
Jeremiah J. Minich ◽  
Abigail Elizur
Keyword(s):  
Atlantic Salmon ◽  
Gut Microbiota ◽  
Salmo Salar ◽  
Atlantic Salmon Salmo Salar

Fermented Soybean Meal Increases Lactic Acid Bacteria in Gut Microbiota of Atlantic Salmon (Salmo salar)

2017 ◽  
Vol 10 (3) ◽  
pp. 566-576 ◽  
Author(s):  
Natalia Catalán ◽  
Alejandro Villasante ◽  
Jurij Wacyk ◽  
Carolina Ramírez ◽  
Jaime Romero
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Atlantic Salmon ◽  
Gut Microbiota ◽  
Salmo Salar ◽  
Soybean Meal ◽  
Fermented Soybean Meal ◽  
Fermented Soybean ◽  
Atlantic Salmon Salmo Salar

scholarly journals Effect of Dietary Carbohydrate-to-Protein Ratio on Gut Microbiota in Atlantic Salmon (Salmo salar)

Animals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 89 ◽  
Author(s):  
Alejandro Villasante ◽  
Carolina Ramírez ◽  
Natalia Catalán ◽  
Rafael Opazo ◽  
Patricio Dantagnan ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Gut Microbiota ◽  
Salmo Salar ◽  
High Throughput Sequencing ◽  
Wheat Starch ◽  
Rrna Gene ◽  
Protein Ratio ◽  
Distal Intestine ◽  
High Carbohydrate ◽  
Atlantic Salmon Salmo Salar

Atlantic salmon (Salmo salar) is a carnivorous fish species whose productive performance tends to be suboptimal when fed low-cost carbohydrate rich meals. It is of interest to study the dynamics of gut microbiota communities in salmonids fed high carbohydrate diets since gut microbes are referred to as key players that influence the metabolism and physiology of the host. A study was conducted to determine the effect of feeding a high carbohydrate diet to Atlantic salmon in gut microbiota communities. A medium carbohydrate (15% wheat starch)/medium protein (MC/MP) diet or a high carbohydrate (30% wheat starch)/low protein (HC/LP) diet was fed to triplicate tanks (28 fish each) during four weeks. We conducted an in-depth characterization of the distal intestine digesta microbiota using high-throughput sequencing of the V4 region of the 16S rRNA gene. Firmicutes, Actinobacteria and Proteobacteria were the major phyla determined in either experimental group. Phylum Planctomycetes, class Planctomycetia, order Planctomycetales and genus Lactococcus were significantly more abundant in fish fed the HC/LP diet compared with fish fed the MC/MP diet. Our study suggests feeding a carbohydrate rich meal to salmon exerts a low impact on the structure of gut microbial communities, affecting mostly low-abundance bacteria capable of metabolizing anaerobically carbohydrates as a major energy-yielding substrate.

scholarly journals Assessing the Pyloric Caeca and Distal Gut Microbiota Correlation with Flesh Color in Atlantic Salmon (Salmo salar L., 1758)

2020 ◽  
Vol 8 (8) ◽  
pp. 1244
Author(s):  
Chan D. H. Nguyen ◽  
Gianluca Amoroso ◽  
Tomer Ventura ◽  
Abigail Elizur
Keyword(s):  
Atlantic Salmon ◽  
Gut Microbiota ◽  
Salmo Salar ◽  
Pathogenic Bacteria ◽  
Diversity Index ◽  
Market Price ◽  
Economic Losses ◽  
Flesh Color ◽  
Pyloric Caeca ◽  
Atlantic Salmon Salmo Salar

The Atlantic salmon (Salmo salar L., 1758) is a temperate fish species native to the northern Atlantic Ocean. The distinctive pink–red flesh color (i.e., pigmentation) significantly affects the market price. Flesh paleness leads to customer dissatisfaction, a loss of competitiveness, a drop in product value and, consequently, severe economic losses. This work extends our knowledge on salmonid carotenoid dynamics to include the interaction between the gut microbiota and flesh color. A significant association between the flesh color and abundance of specific bacterial communities in the gut microbiota suggests that color may be affected either by seeding resilient beneficial bacteria or by inhibiting the negative effect of pathogenic bacteria. We sampled 96 fish, which covered all phenotypes of flesh color, including the average color and the evenness of color of different areas of the fillet, at both the distal intestine and the pyloric caeca of each individual, followed by 16S rRNA sequencing at the V3-V4 region. The microbiota profiles of these two gut regions were significantly different; however, there was a consistency in the microbiota, which correlated with the flesh color. Moreover, the pyloric caeca microbiota also showed high correlation with the evenness of the flesh color (beta diversity index, PERMANOVA, p = 0.002). The results from the pyloric caeca indicate that Carnobacterium, a group belonging to the lactic acid bacteria, is strongly related to the flesh color and the evenness of the color between the flesh areas.

Sign in / Sign up

Export Citation Format

Share Document