scholarly journals Effects of water reuse system on antioxidant enzymes of rainbow trout (Oncorhynchus mykiss w., 1792)

2012 ◽  
Vol 49 (No. 10) ◽  
pp. 373-378 ◽  
Author(s):  
I. Ozmen ◽  
A. Bayir ◽  
M. Cengiz ◽  
A. N Sirkecioglu ◽  
M. Atamanalp
Keyword(s):  
Antioxidant Enzymes ◽  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Water Reuse ◽  
Breeding Systems ◽  
Antioxidant Enzyme Activities ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Flow Through ◽  
Reuse System ◽  
Glucose 6 Phosphate Dehydrogenase

The objective of the present study was to investigate the importance of the antioxidant enzymes; glucose-6-phosphate dehydrogenase (G6PD), glutathione reductase (GR), superoxide dismutase (SOD), glutathione peroxidase (GP) and catalase (CAT) in defense against toxic reactive oxygen species (ROS). For this purpose, comparative studies were performed on the antioxidant enzyme activities in red cells of rainbow trout (Oncorhynchus mykiss) between flow-through and recirculated breeding systems G6PD, GR and SOD activities were found significantly lower in reuse system than flow-through system. But, GP and CAT activities were increased significantly in the erythrocyte of rainbow trout held in reuse water tanks.

scholarly journals Fishmeal Dietary Replacement up to 50%: A Comparative Study of Two Insect Meals for Rainbow Trout (Oncorhynchus mykiss)

Animals ◽  
2022 ◽  
Vol 12 (2) ◽  
pp. 179
Author(s):  
Federico Melenchón ◽  
Eduardo de Mercado ◽  
Héctor J. Pula ◽  
Gabriel Cardenete ◽  
Fernando G. Barroso ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
High Efficiency ◽  
Fish Growth ◽  
Human Consumption ◽  
Antioxidant Enzyme Activities ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Food And Agriculture ◽  
Food And Agriculture Organization ◽  
Damage Indicators

The demand of optimal protein for human consumption is growing. The Food and Agriculture Organization (FAO) has highlighted aquaculture as one of the most promising alternatives for this protein supply gap due to the high efficiency of fish growth. However, aquaculture has been facing its own sustainability problem, because its high demand for protein has been traditionally satisfied with the use of fishmeal (FM) as the main source. Some of the most promising and sustainable protein substitutes for FM come from insects. The present manuscript provides insight into an experiment carried out on rainbow trout (Oncorhynchus mykiss) with a 50% replacement of FM with different larvae insect meals: Hermetia illucens (HI), and Tenebrio molitor (TM). TM showed better results for growth, protein utilization and more active digestive function, supported by intestinal histological changes. Liver histology and intermediary metabolism did not show relevant changes between insect meals, while other parameters such as antioxidant enzyme activities and tissue damage indicators showed the potential of insect meals as functional ingredients.

Sign in / Sign up

Export Citation Format

Share Document