scholarly journals The effect of spray‐dried porcine plasma on gilthead seabream ( Sparus aurata ) intestinal microbiota

2020 ◽  
Vol 26 (3) ◽  
pp. 801-811
Author(s):  
Silvana T. Tapia‐Paniagua ◽  
Maria del C. Balebona ◽  
Joana P. Firmino ◽  
Carmen Rodríguez ◽  
Javier Polo ◽  
...  
Keyword(s):  
Intestinal Microbiota ◽  
Sparus Aurata ◽  
Gilthead Seabream ◽  
Spray Dried

scholarly journals Effects of Dietary Fishmeal Replacement by Poultry By-Product Meal and Hydrolyzed Feather Meal on Liver and Intestinal Histomorphology and on Intestinal Microbiota of Gilthead Seabream (Sparus aurata)

2021 ◽  
Vol 11 (19) ◽  
pp. 8806
Author(s):  
Pier Psofakis ◽  
Alexandra Meziti ◽  
Panagiotis Berillis ◽  
Eleni Mente ◽  
Konstantinos A. Kormas ◽  
...  
Keyword(s):  
Amino Acid ◽  
Intestinal Microbiota ◽  
Sparus Aurata ◽  
Control Diet ◽  
Specific Pattern ◽  
Gilthead Seabream ◽  
Amino Acid Supplementation ◽  
Feather Meal ◽  
Acid Supplementation ◽  
Fishmeal Replacement

The effects on liver and intestinal histomorphology and on intestinal microbiota in gilthead seabream (Sparus aurata) fed diets that contained poultry by-product meal (PBM) and hydrolyzed feather meal (HFM) as fishmeal replacements were studied. Fish fed on a series of isonitrogenous and isoenergetic diets, where fishmeal protein of the control diet (FM diet) was replaced by either PBM or by HFM at 25%, 50% and 100% without amino acid supplementation (PBM25, PBM50, PBM100, HFM25, HFM50 and HFM100 diets) or supplemented with lysine and methionine (PBM25+, PBM50+, HFM25+ and HFM50+ diets). The use of PBM and HFM at 25% fishmeal replacement generated a similar hepatic histomorphology to FM-fed fish, indicating that both land animal proteins are highly digestible at low FM replacement levels. However, 50% and 100% FM replacement levels by either PBM or HFM resulted in pronounced hepatic alterations in fish with the latter causing more severe degradation of the liver. Dietary amino acid supplementation delivered an improved tissue histology signifying their importance at high FM replacement levels. Intestinal microbiota was dominated by Proteobacteria (58.8%) and Actinobacteria (32.4%) in all dietary groups, but no specific pattern was observed among them at any taxonomic level. This finding was probably driven by the high inter-individual variability observed.

Genetic parameters for quality traits by non-invasive methods and their G x E interactions in ocean cages and estuaries on gilthead seabream (Sparus aurata)

Aquaculture ◽  
2021 ◽  
Vol 537 ◽  
pp. 736462
Author(s):  
I. Elalfy ◽  
H.S. Shin ◽  
D. Negrín-Báez ◽  
A. Navarro ◽  
M.J. Zamorano ◽  
...  
Keyword(s):  
Genetic Parameters ◽  
Sparus Aurata ◽  
Gilthead Seabream ◽  
Quality Traits ◽  
Non Invasive

Effects of subcutaneous injection of λ/κ‐carrageenin on the immune and liver antioxidant status of gilthead seabream ( Sparus aurata )

2021 ◽  
Author(s):  
José Carlos Campos‐Sánchez ◽  
Francisco A. Guardiola ◽  
José María García Beltrán ◽  
Diana Ceballos‐Francisco ◽  
María Ángeles Esteban
Keyword(s):  
Subcutaneous Injection ◽  
Antioxidant Status ◽  
Sparus Aurata ◽  
Gilthead Seabream

scholarly journals Aflatoxicosis Dysregulates the Physiological Responses to Crowding Densities in the Marine Teleost Gilthead Seabream (Sparus aurata)

Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 753
Author(s):  
Andre Barany ◽  
Juan Fuentes ◽  
Gonzalo Martínez-Rodríguez ◽  
Juan Miguel Mancera
Keyword(s):  
Mrna Expression ◽  
Sparus Aurata ◽  
Stocking Density ◽  
Head Kidney ◽  
Dietary Exposure ◽  
Experimental Period ◽  
Gilthead Seabream ◽  
Marine Teleost ◽  
Lipid Metabolites ◽  
Period Duration

Several studies in fish have shown that aflatoxin B1 (AFB1) causes a disparity of species-dependent physiological disorders without compromising survival. We studied the effect of dietary administration of AFB1 (2 mg AFB1 kg−1 diet) in gilthead seabream (Sparus aurata) juveniles in combination with a challenge by stocking density (4 vs. 40 g L−1). The experimental period duration was ten days, and the diet with AFB1 was administered to the fish for 85 days prior to the stocking density challenge. Our results indicated an alteration in the carbohydrate and lipid metabolites mobilization in the AFB1 fed group, which was intensified at high stocking density (HSD). The CT group at HSD increased plasma cortisol levels, as expected, whereas the AFB1-HSD group did not. The star mRNA expression, an enzyme involved in cortisol synthesis in the head kidney, presented a ninefold increase in the AFB1 group at low stocking density (LSD) compared to the CT-LSD group. Adenohypophyseal gh mRNA expression increased in the AFB1-HSD but not in the CT-HSD group. Overall, these results confirmed that chronic AFB1 dietary exposure alters the adequate endocrinological physiological cascade response in S. aurata, compromising the expected stress response to an additional stressor, such as overcrowding.

scholarly journals Influence of Genetic Selection for Growth and Broodstock Diet n-3 LC-PUFA Levels on Reproductive Performance of Gilthead Seabream, Sparus aurata

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 519
Author(s):  
Shajahan Ferosekhan ◽  
Serhat Turkmen ◽  
Cathaysa Pérez-García ◽  
Hanlin Xu ◽  
Ana Gómez ◽  
...  
Keyword(s):  
Reproductive Performance ◽  
Egg Quality ◽  
Sparus Aurata ◽  
Genetic Selection ◽  
Growth Trait ◽  
High Growth ◽  
Gilthead Seabream ◽  
Commercial Diet ◽  
Selection For ◽  
Broodstock Diet

Genetic selection in gilthead seabream (GSB), Sparus aurata, has been undertaken to improve the growth, feed efficiency, fillet quality, skeletal deformities and disease resistance, but no study is available to delineate the effect of genetic selection for growth trait on GSB reproductive performance under mass spawning condition. In this study, high growth (HG) or low growth (LG) GSB broodstock were selected to evaluate the sex steroid hormones, sperm, egg quality and reproductive performance under different feeding regime of commercial diet or experimental broodstock diet containing either fish oil (FO) or vegetable oil (VO) based diet. Under commercial diet feeding phase, broodstock selected for either high growth or low growth did not show any significant changes in the egg production per kg female whereas egg viability percentage was positively (p = 0.014) improved by the high growth trait broodstock group. The experimental diet feeding results revealed that both growth trait and dietary fatty acid composition influenced the reproductive performance of GSB broodstock. In the experimental diet feeding phase, we observed high growth trait GSB males produced a higher number of sperm cells (p < 0.001) and also showed a higher sperm motility (p = 0.048) percentage. The viable egg and larval production per spawn per kg female were significantly improved by the broodstock selected for high growth trait and fed with fish oil-based diet. This present study results signifies that gilthead seabream broodstock selected on growth trait could have positive role in improvement of sperm and egg quality to produce viable progeny.

scholarly journals Functionalized Nanoplastics (NPs) Increase the Toxicity of Metals in Fish Cell Lines

2021 ◽  
Vol 22 (13) ◽  
pp. 7141
Author(s):  
Carmen González-Fernández ◽  
Francisco Guillermo Díaz Baños ◽  
María Ángeles Esteban ◽  
Alberto Cuesta
Keyword(s):  
Sparus Aurata ◽  
Gilthead Seabream ◽  
Fish Cell ◽  
Test Model ◽  
Fish Cell Lines ◽  
Polystyrene Nanoparticles ◽  
Commercial Fish ◽  
Cellular Protection ◽  
Marine Life

Nanoplastics (NPs) are one of the most abundant environment-threatening nanomaterials on the market. The objective of this study was to determine in vitro if functionalized NPs are cytotoxic by themselves or increase the toxicity of metals. For that, we used 50 nm polystyrene nanoparticles with distinct surface functionalization (pristine, PS-Plain; carboxylic, PS-COOH; and amino PS-NH2) alone or combined with the metals arsenic (As) and methylmercury (MeHg), which possess an environmental risk to marine life. As test model, we chose a brain-derived cell line (SaB-1) from gilthead seabream (Sparus aurata), one of the most commercial fish species in the Mediterranean. First, only the PS-NH2 NPs were toxic to SaB-1 cells. NPs seem to be internalized into the cells but they showed little alteration in the transcription of genes related to oxidative stress (nrf2, cat, gr, gsta), cellular protection against metals (mta) or apoptosis (bcl2, bax). However, NPs, mainly PS-COOH and PS-NH2, significantly increased the toxicity of both metals. Since the coexistence of NPs and other pollutants in the aquatic environment is inevitable, our results reveal that the combined effect of NPs with the rest of pollutants deserves more attention.

Incorporation of defatted microalgal biomass (Tetraselmis sp. CTP4) at the expense of soybean meal as a feed ingredient for juvenile gilthead seabream (Sparus aurata)

2020 ◽  
Vol 47 ◽  
pp. 101869 ◽  
Author(s):  
Hugo Pereira ◽  
Manuel Sardinha ◽  
Tamára Santos ◽  
Luísa Gouveia ◽  
Luísa Barreira ◽  
...  
Keyword(s):  
Soybean Meal ◽  
Sparus Aurata ◽  
Gilthead Seabream ◽  
Feed Ingredient ◽  
Microalgal Biomass
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