O-acetylation of sialic acids in N-glycans of Atlantic salmon (Salmo salar) serum is altered by handling stress

PROTEOMICS ◽  
2008 ◽  
Vol 8 (14) ◽  
pp. 2849-2857 ◽  
Author(s):  
Xin Liu ◽  
Luis Afonso ◽  
Eleonora Altman ◽  
Stewart Johnson ◽  
Laura Brown ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Sialic Acids ◽  
Handling Stress ◽  
Atlantic Salmon Salmo Salar

1H-NMR and mass spectrometric characterization of the metabolic response of juvenile Atlantic salmon (Salmo salar) to long-term handling stress

Metabolomics ◽  
2008 ◽  
Vol 5 (1) ◽  
pp. 123-137 ◽  
Author(s):  
Tobias K. Karakach ◽  
Elizabeth C. Huenupi ◽  
Evelyn C. Soo ◽  
John A. Walter ◽  
Luis O. B. Afonso
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
1H Nmr ◽  
Metabolic Response ◽  
Mass Spectrometric ◽  
Handling Stress ◽  
Atlantic Salmon Salmo Salar ◽  
Juvenile Atlantic Salmon

Handling Stress and Storage Temperature Affect Meat Quality of Farmed-raised Atlantic Salmon (Salmo Salar)

1997 ◽  
Vol 62 (4) ◽  
pp. 898-905 ◽  
Author(s):  
T. SIGHOLT ◽  
U. ERIKSON ◽  
T. RUSTAD ◽  
S. JOHANSEN ◽  
T.S. NORDTVEDT ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Meat Quality ◽  
Salmo Salar ◽  
Storage Temperature ◽  
Handling Stress ◽  
Atlantic Salmon Salmo Salar ◽  
And Storage

Responses of Plasma Electrolytes, Thyroid Hormones, and Gill Histology in Atlantic Salmon (Salmo salar) to Acid and Limed River Waters

1990 ◽  
Vol 47 (12) ◽  
pp. 2431-2440 ◽  
Author(s):  
S. B. Brown ◽  
R. E. Evans ◽  
H. S. Majewski ◽  
G. B. Sangalang ◽  
J. F. Klaverkamp
Keyword(s):  
Atlantic Salmon ◽  
River Water ◽  
Salmo Salar ◽  
Plasma Osmolality ◽  
Gill Tissue ◽  
Acidic Ph ◽  
Handling Stress ◽  
Atlantic Salmon Salmo Salar ◽  
Ph Range ◽  
Altered Thyroid

Sexually maturing Atlantic salmon, Salmo salar, were held, in the acidic (pH range 4.7–5.2) Westfield River, Nova Scotia and in the nearby, less acidic (pH range 5.2–5.6) Medway River. Exposure to Westfield River water in 1985 (149 d) and 1986 (126 d) reduced plasma osmolality, Na+, Cl−, and Ca++ (in females only) concentrations of post-spawning fish compared to those in fish held in the Medway River. There were coincidental increases in plasma K+, glucose, and unidentified osmotic fraction (UOF). Gill tissue showed hyperplasia of primary lamellae epithelium. Together, these findings indicate compromised ionoregulatory ability. Decreased plasma T3 (3,5,3′-triiodo-L-thyronine) suggests altered thyroid function. Westfield River water did not affect plasma T4(L-thyroxine) or protein concentrations. An unintentional handling stress caused even more severely depressed plasma ions and more elevated plasma glucose in Westfield fish in 1985 relative to 1986; Medway fish largely recovered from this stress. These observations indicate that acid-exposed fish may be more sensitive to additional stressors. Limestone treatment of Westfield River water (elevating its pH to Medway values) ameliorated ionoregulatory ability but did not affect plasma T3 and Ca++ (female). A high salt diet (3% NaCl) failed to protect salmon from the effects of acidic water.

Microstructure and texture of fresh and smoked Atlantic salmon, Salmo salar L., fillets from fish reared and slaughtered under different conditions

2001 ◽  
Vol 32 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Sjofn Sigurgisladottir ◽  
Margret S. Sigurdardottir ◽  
Helga Ingvarsdottir ◽  
Ole J. Torrissen ◽  
Hannes Hafsteinsson
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Atlantic Salmon Salmo Salar

Persistence of Orally Administered Salmonella enterica Serovars Agona and Montevideo in Atlantic Salmon (Salmo salar L.)

2005 ◽  
Vol 68 (7) ◽  
pp. 1336-1339 ◽  
Author(s):  
L. L. NESSE ◽  
T. LØVOLD ◽  
B. BERGSJØ ◽  
K. NORDBY ◽  
C. WALLACE ◽  
...  
Keyword(s):  
Gastrointestinal Tract ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Salmonella Enterica ◽  
Most Probable Number ◽  
Fish Feed ◽  
Internal Organs ◽  
Probable Number ◽  
Atlantic Salmon Salmo Salar ◽  
Gastric Intubation

The objective of our experiments was to study the persistence and dissemination of orally administered Salmonella in smoltified Atlantic salmon. In experiment 1, salmon kept at 15°C were fed for 1 week with feed contaminated with 96 most-probable-number units of Salmonella Agona per 100 g of feed and then starved for 2 weeks. Samples were taken from the gastrointestinal tract and examined for Salmonella 1, 2, 8, 9, 15, and 16 days after the feeding ended. In experiment 2, Salmonella Agona and Montevideo were separately mixed with feed and administered by gastric intubation. Each fish received 1.0 × 108, 1.0 × 106, or 1.0 × 104 CFU. The different groups were kept in parallel at 5 and 15°C and observed for 4 weeks. Every week, three fish in each group were sacrificed, and samples were taken from the skin, the pooled internal organs, the muscle, and the gastrointestinal tract and examined for the presence of Salmonella. The results from the two experiments showed that the persistence of Salmonella in the fish was highly dependent on the dose administered. Salmonella was not recovered from any of the fish that were fed for 1 week with the lowest concentration of Salmonella. In the fish given the highest dose of Salmonella, bacteria persisted for at least 4 weeks in the gastrointestinal tract as well as, to some extent, the internal organs. The present study shows that under practical conditions in Norway, the risk of Salmonella in fish feed being passed on to the consumer of the fish is negligible.

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