Horizontal transmission of Piscirickettsia salmonis from the wild sub‐Antarctic notothenioid fish Eleginops maclovinus to rainbow trout ( Oncorhynchus mykiss ) under experimental conditions

2021 ◽  
Author(s):  
Juan Carlos Quintanilla ◽  
Margarita P. González ◽  
Juan Pablo García ◽  
Paola Olmos ◽  
Sergio Contreras‐Lynch
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Horizontal Transmission ◽  
Experimental Conditions ◽  
Notothenioid Fish ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Eleginops Maclovinus ◽  
Piscirickettsia Salmonis

scholarly journals Routes of entry of Piscirickettsia salmonis in rainbow trout Oncorhynchus mykiss

1999 ◽  
Vol 37 ◽  
pp. 165-172 ◽  
Author(s):  
PA Smith ◽  
P Pizarro ◽  
P Ojeda ◽  
J Contreras ◽  
S Oyanedel ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Piscirickettsia Salmonis

Influence of low temperature acclimation on fate of metabolic fuels in rainbow trout (Oncorhynchus mykiss) hearts

1993 ◽  
Vol 71 (11) ◽  
pp. 2167-2173 ◽  
Author(s):  
John R. Bailey ◽  
William R. Driedzic
Keyword(s):  
Oxygen Consumption ◽  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Temperature Acclimation ◽  
Experimental Conditions ◽  
Intracellular Lipids ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Significant Difference ◽  
Precipitate Protein ◽  
Fuel Source

Rainbow trout (Oncorhynchus mykiss) were acclimated to 5 and 20 °C. Oxygen consumption of isolated perfused hearts was measured at 5 or 15 °C with either glucose or palmitate as the exogenous fuel source. With glucose as the fuel there was no significant difference in oxygen consumption of hearts from either acclimation group at either temperature. With palmitate as the fuel source, hearts from fish acclimated to and tested at 5 °C had significantly higher oxygen consumption than hearts from fish acclimated to 20 °C and tested at either 5 or 15 °C. Hearts from fish both acclimated to and tested at 5 °C had a higher oxygen consumption with palmitate than when glucose was supplied. This reflects the preference for fatty acid fuels found in cold acclimated muscle tissue, and consequently the amount of oxygen required to utilize fats. Under all experimental conditions, 14CO2 production from either (6-14C)glucose or (1-14C)palmitate could account for less than 0.5% of oxygen consumption. Tissue chemical analysis showed that most of the label from (6-14C)glucose appeared in acid-soluble (glycolytic intermediates, citric acid cycle intermediates, amino acids, etc.) and lipid fractions while most of the label from (1-14C)palmitate appeared in lipid- or acid-soluble or acid precipitate (protein material) fractions. This indicates considerable dilution of exogenous fuels in endogenous pools, which could account for the discrepancy in measured O2 consumption and 14CO2 production. Glucose catabolism was little affected by either acute or chronic changes in temperature other than an increase in glucose incorporation into the glycogen pool. Hearts from fish both acclimated to and tested at 5 °C showed an increased handling of exogenous fatty acids as reflected by elevated rates of catabolism and incorporation into intracellular lipids.

scholarly journals Single-Step Genome-Wide Association Study for Resistance to Piscirickettsia salmonis in Rainbow Trout (Oncorhynchus mykiss)

2019 ◽  
Vol 9 (11) ◽  
pp. 3833-3841 ◽  
Author(s):  
Agustin Barria ◽  
Rodrigo Marín-Nahuelpi ◽  
Pablo Cáceres ◽  
María E. López ◽  
Liane N. Bassini ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Association Study ◽  
Genome Wide Association Study ◽  
Single Step ◽  
Genome Wide Association ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Genome Wide ◽  
Piscirickettsia Salmonis

Infectivity of Piscirickettsia salmonis in immersion-bath exposed rainbow trout Oncorhynchus mykiss (Walbaum) fry

2014 ◽  
Vol 38 (8) ◽  
pp. 765-770 ◽  
Author(s):  
P A Smith ◽  
J R Contreras ◽  
M E Rojas ◽  
A Guajardo ◽  
S Díaz ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Piscirickettsia Salmonis

Susceptibility of pike Esox lucius to VHSV and IHNV and potential transmission to rainbow trout Oncorhynchus mykiss

2020 ◽  
Vol 139 ◽  
pp. 175-187
Author(s):  
J Cabon ◽  
F Almeras ◽  
M Baud ◽  
L Pallandre ◽  
T Morin ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Horizontal Transmission ◽  
Clinical Signs ◽  
Esox Lucius ◽  
Infected Fish ◽  
Control Measures ◽  
Viral Hemorrhagic Septicemia Virus ◽  
Fish Farms ◽  
Rainbow Trout Oncorhynchus Mykiss

Determining the origin of recurrent outbreaks of fish diseases occurring on fish farms is essential for disease prevention and control measures. In this study, we investigated the potential reservoir role of wild fish species living near salmonid farms which were regularly found to be positive for viral hemorrhagic septicemia virus (VHSV). In addition to VHSV, infectious hematopoietic necrosis virus (IHNV) was also isolated from several pike Esox lucius samples collected from a pond near the salmonid farms of interest. All isolates of VHSV and IHNV analyzed had 100% identical partial glycoprotein gene sequences. VHSV pike strain OO128-25 belonged to the Ia genotype and shared 99.1 to 99.5% nucleotide identity with strains recently isolated from the farms. IHNV pike strain OO121-8, European genotype, appeared to be different from strains from France characterized since the first isolation in 1987. Isolates representative of both viral species were highly virulent in rainbow trout Oncorhynchus mykiss. OO128-25 induced 65% mortality in pike fingerlings, whereas only weak mortality was observed with OO121-8, despite characteristic symptoms in infected fish. High levels of specific antibodies to VHSV and IHNV were detected in adult pike in the absence of clinical signs. Infection of rainbow trout in contact with experimentally VHSV- or IHNV-infected pike fingerlings indicates possible horizontal transmission. These results suggest that pike could act as a reservoir for VHSV and IHNV in the wild, providing additional evidence to explain viral persistence and resurgence in certain areas.

Sign in / Sign up

Export Citation Format

Share Document