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Determination the Effects of Different Concentrations of Waterborne Sodium on Ions Content of Rainbow Trout (Oncorhynchus mykiss) Egg
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Mehrdad Sarkheil   , Golamreza Rafiee , Bagher Mojazi Amiri , Mehrdad Farhangi |
| , mehrdadsarkheil@gmail.com |
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Abstract: (10458 Views) |
| A completely randomized design was conducted to determine the effect of four concentrations of
waterborne sodium (2, 14, 50, 100 mg L-1) on sodium, calcium, magnesium, copper, zinc and iron uptake
and accumulation in rainbow trout eggs. Water recirculating incubators as experimental units were used
and 22.5g the newly fertilized rainbow trout eggs were introduced in each one. The incubation media
(treatments) were prepared by adding analytical salt into the double-de-ionized distilled water. The water
temperature was between 7.5-10.0 ºC during the incubation period. The concentrations of Na, Ca, Mg, Cu,
Zn and Fe of egg and water were measured in the beginning of experiment and hatching stage. Based on
the results, Sodium and magnesium uptake by eggs from waterborne occurred in all treatments except in
[Na+] 2 mg L-1. Calcium and Iron were not absorbed by eggs from the waterborne. Cu uptake by eggs from
waterborne were recorded in [Na+] 2 and 14 mg L-1 and prevention of Cu uptake occurred in [Na+] 50 and
100 mg L-1. Zn uptakes by eggs were not different significantly (P>0.05) among treatments. The results of
this study indicated that sodium, copper and magnesium uptake and accumulation in rainbow trout eggs
depend on waterborne and whole egg sodium concentrations. |
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| Keywords: Egg, Rainbow trout, Sodium, Ion content. |
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Full-Text [PDF 126 kb]
(1945 Downloads)
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Type of Study: Research/ Original/ Regular Article |
Received: 2014/10/18 | Revised: 2015/02/28 | Accepted: 2014/10/18 | ePublished: 2014/10/18
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