The influence of dietary fish oil replacement with mixture of vegetable oils on reproductive performance, immune responses and dynamic of fatty acids during embryogenesis in Oncorhynchus mykiss

2019 ◽  
Vol 51 (3) ◽  
pp. 918-931 ◽  
Author(s):  
Naser Agh ◽  
Mansour Torfi Mozanzadeh ◽  
Fatemeh Jafari ◽  
Farzaneh Noori ◽  
Reza Jalili
Keyword(s):  
Fatty Acids ◽  
Immune Responses ◽  
Oncorhynchus Mykiss ◽  
Fish Oil ◽  
Vegetable Oils ◽  
Reproductive Performance ◽  
Fish Oil Replacement ◽  
Dietary Fish

scholarly journals Hepatic gene expression profiles in juvenile rainbow trout (Oncorhynchus mykiss) fed fishmeal or fish oil-free diets

2008 ◽  
Vol 100 (5) ◽  
pp. 953-967 ◽  
Author(s):  
Stéphane Panserat ◽  
Cathy Kolditz ◽  
Nadège Richard ◽  
Elisabeth Plagnes-Juan ◽  
Francois Piumi ◽  
...  
Keyword(s):  
Gene Expression ◽  
Fatty Acid ◽  
Fish Oil ◽  
Vegetable Oils ◽  
Protein Metabolism ◽  
Plant Proteins ◽  
Fish Oil Replacement ◽  
Fishmeal Replacement ◽  
Dietary Fish ◽  
By Products

Reducing the reliance on fishery by-products as amino acid and fatty acid sources in feeds for farmed fish is a major objective today. We evaluated the effect of dietary fish oil or dietary fishmeal replacement by vegetable oils and plant proteins respectively through analysis of hepatic transcriptomes in rainbow trout (Oncorhynchus mykiss). Fish were fed right from first feeding with diets based on plant by-products before being killed. We analysed the hepatic gene profile using trout cDNA microarrays (9K). Our data showed that seventy-one and seventy-five genes were affected after fish oil and fishmeal replacement respectively. The major part of modified gene expression coding for proteins of the metabolic pathways was as follows: (i) a lower level of expression for genes of energy metabolism found in fish after fishmeal and fish oil replacement; (ii) a lower level of gene expression for fatty acid metabolism (biosynthesis) in fish fed with vegetable oils; (iii) a differential expression of actors of detoxification metabolism in trout fed with vegetable oils; (iv) a lower level of expression of genes involved in protein metabolism in fish fed with plant proteins. Overall, our data suggest that dietary fish oil replacement is linked to a decreased capacity of fatty acid biosynthesis (fatty acid synthase) and variation of detoxification metabolism (cytochrome P450s) whereas dietary fishmeal replacement may depress protein metabolism in the liver as reflected by glutamine synthetase.

scholarly journals Effects of Dietary Fish Oil Replacement by Soybean Meal on Performance and Physiology of Rainbow Trout, Oncorhynchus mykiss

2020 ◽  
Vol 53 (1) ◽  
Author(s):  
Muhammad Awais Nazir ◽  
Khalid Mahmood Anjum ◽  
Junaid Naseer ◽  
Ahsan Anjum ◽  
Aneela Zameer Durrani ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Fish Oil ◽  
Soybean Meal ◽  
Fish Oil Replacement ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Dietary Fish

Fish oil replacement with different vegetable oils in Murray cod: Evidence of an “omega-3 sparing effect” by other dietary fatty acids

Aquaculture ◽  
2011 ◽  
Vol 315 (3-4) ◽  
pp. 250-259 ◽  
Author(s):  
G.M. Turchini ◽  
D.S. Francis ◽  
S.P.S.D. Senadheera ◽  
T. Thanuthong ◽  
S.S. De Silva
Keyword(s):  
Fatty Acids ◽  
Fish Oil ◽  
Vegetable Oils ◽  
Dietary Fatty Acids ◽  
Omega 3 ◽  
Fish Oil Replacement ◽  
Sparing Effect ◽  
Murray Cod
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