Physiological effects of stocking density on the fish Piaractus mesopotamicus fed with red seaweed ( Pyropia columbina ) and β‐carotene‐supplemented diets

2020 ◽  
Vol 51 (5) ◽  
pp. 1992-2003
Author(s):  
Carla Bacchetta ◽  
Andrea S. Rossi ◽  
Analía Ale ◽  
Jimena Cazenave
Keyword(s):  
Stocking Density ◽  
Physiological Effects ◽  
Red Seaweed ◽  
Piaractus Mesopotamicus ◽  
Β Carotene

scholarly journals Carotenoid Profiling of a Red Seaweed Pyropia yezoensis: Insights into Biosynthetic Pathways in the Order Bangiales

Marine Drugs ◽  
2018 ◽  
Vol 16 (11) ◽  
pp. 426 ◽  
Author(s):  
Jiro Koizumi ◽  
Naoki Takatani ◽  
Noritoki Kobayashi ◽  
Koji Mikami ◽  
Kazuo Miyashita ◽  
...  
Keyword(s):  
1H Nmr ◽  
Metabolic Pathways ◽  
Pyropia Yezoensis ◽  
Biosynthetic Pathways ◽  
Red Seaweed ◽  
Red Seaweeds ◽  
Natural Pigments ◽  
Photosynthetic Organisms ◽  
Metabolic Products ◽  
Β Carotene

Carotenoids are natural pigments that contribute to light harvesting and photo-protection in photosynthetic organisms. In this study, we analyzed the carotenoid profiles, including mono-hydroxy and epoxy-carotenoids, in the economically valuable red seaweed Pyropia yezoensis, to clarify the detailed biosynthetic and metabolic pathways in the order Bangiales. P. yezoensis contained lutein, zeaxanthin, α-carotene, and β-carotene, as major carotenoids in both the thallus and conchocelis stages. Monohydroxy intermediate carotenoids for the synthesis of lutein with an ε-ring from α-carotene, α-cryptoxanthin (β,ε-caroten-3’-ol), and zeinoxanthin (β,ε-caroten-3-ol) were identified. In addition, β-cryptoxanthin, an intermediate in zeaxanthin synthesis from β-carotene, was also detected. We also identified lutein-5,6-epoxide and antheraxanthin, which are metabolic products of epoxy conversion from lutein and zeaxanthin, respectively, by LC-MS and 1H-NMR. This is the first report of monohydroxy-carotenoids with an ε-ring and 5,6-epoxy-carotenoids in Bangiales. These results provide new insights into the biosynthetic and metabolic pathways of carotenoids in red seaweeds.

Dietary β‐carotene improves growth performance and antioxidant status of juvenile Piaractus mesopotamicus

2019 ◽  
Vol 25 (4) ◽  
pp. 761-769 ◽  
Author(s):  
Carla Bacchetta ◽  
Andrea S. Rossi ◽  
Raúl E. Cian ◽  
Silvina R. Drago ◽  
Jimena Cazenave
Keyword(s):  
Growth Performance ◽  
Antioxidant Status ◽  
Piaractus Mesopotamicus ◽  
Β Carotene

Intestinal microbiota modulation in juvenile Pacú (Piaractus mesopotamicus) by supplementation with Pyropia columbina and β-carotene

2020 ◽  
Vol 28 (3) ◽  
pp. 1001-1016 ◽  
Author(s):  
L. T. Rossi ◽  
A. Romero Sharpen ◽  
J. A. Zimmermann ◽  
C. R. Olivero ◽  
M. V. Zbrun ◽  
...  
Keyword(s):  
Intestinal Microbiota ◽  
Piaractus Mesopotamicus ◽  
Β Carotene

Red seaweed Pyropia columbina as antioxidant supplement in feed for cultured juvenile Pacú (Piaractus mesopotamicus)

2018 ◽  
Vol 31 (2) ◽  
pp. 1455-1465 ◽  
Author(s):  
Raúl E. Cian ◽  
Carla Bacchetta ◽  
Andrea Rossi ◽  
Jimena Cazenave ◽  
Silvina R. Drago
Keyword(s):  
Red Seaweed ◽  
Piaractus Mesopotamicus ◽  
Antioxidant Supplement

scholarly journals Dynamics of some limnological characteristics in pacu (Piaractus mesopotamicus) culture tanks as function of handling

1999 ◽  
Vol 59 (4) ◽  
pp. 543-551 ◽  
Author(s):  
L. H. SIPAÚBA-TAVARES ◽  
M. A. G. de MORAES ◽  
F. M . de S. BRAGA
Keyword(s):  
Water Quality ◽  
Crude Protein ◽  
Stocking Density ◽  
The Other ◽  
Indigenous Species ◽  
Water Residence Time ◽  
Piaractus Mesopotamicus ◽  
Protein Levels ◽  
Significant Difference ◽  
Fish Tanks

In order to study the water quality in fish tanks, a 166-day (January to July 1992) experiment was realized using the indigenous species "pacu" (Piaractus mesopotamicus). Two different protein levels were tested in the diet (16% and 34% crude protein) and three stocking densities (0.25, 0.50 and 0.77 fish/m²). From the results, it was observed that the interactions between stocking density and experiment length affected the characteristics bicarbonate and alkalinity, as well as the interaction between stocking density and protein levels affected concentrations of free and total CO2, conductivity and pH (P < 0.05). The water temperature in tanks changed significantly during the period of study (P < 0.05),decreasing gradually from summer to winter. There was no significant difference in water residence time in the tanks (P < 0.05) during the experiment. The other limnological characteristics were not affected by treatments during study period.

Protective effect of nutraceutical food on the intestinal mucosa of juvenile pacu Piaractus mesopotamicus under high stocking density

2020 ◽  
Vol 28 (5) ◽  
pp. 1981-1995
Author(s):  
Mariana C. F. Pontin ◽  
Wiolene M. Nordi ◽  
Jéssica Pampolini ◽  
Raul Machado-Neto ◽  
Débora B. Moretti
Keyword(s):  
Protective Effect ◽  
Intestinal Mucosa ◽  
Stocking Density ◽  
Piaractus Mesopotamicus

Effects of cold stress on juvenile Piaractus mesopotamicus and the mitigation by β-carotene

2020 ◽  
Vol 88 ◽  
pp. 102497 ◽  
Author(s):  
Carla Bacchetta ◽  
Analía Ale ◽  
Andrea S. Rossi ◽  
Martina Karakachoff ◽  
Jimena Cazenave
Keyword(s):  
Cold Stress ◽  
Piaractus Mesopotamicus ◽  
Β Carotene
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