The Study of Trace Elements Zn, P, K and Ca in Muscle, Liver and Gill of Rainbow trout (Oncorhynchus mykiss) in Different Growth Stages
Subject Areas : Breeding and Aquaculture Sciences JournalMisaq tayebzadeh 1 , mohammad velayatzadeh 2
1 - واحد اهواز
2 - واحد اهواز
Keywords: fish, trace elements, Muscle, Oncorhynchus mykiss, feeding,
Abstract :
This study aims to determine and comparison trace elements Zn, P, K and Ca in fish eggs, muscle of fingerling, fish market and male and female breeding stock farmed Oncorhynchus mykiss from Lorestan province in 2011. 75 samples by fish eggs, fingerling, fish market and male and female breeding stock were prepared. The highest and lowest of Zn obtained in liver of fingerling (26.90±1.15 mg/kg) and muscle of male breeding stock (6.16±0.45 mg/kg). The highest and lowest of P were in liver of fingerling (3966.42±125.86 mg/kg) and gill of female breeding stock (2400±144.76 mg/kg). The highest and lowest of K in muscle of fish market (5000±132.28 mg/kg) and in muscle of fingerling (3712.64±76.83 mg/Kg). The highest and lowest of Ca were in liver of male breeding stock (464.85±30.55 mg/kg) and muscle of fish market (193.39±15.27 mg/kg). Zn in liver and gill of fingerling muscle of fish market was higher than other growth stages. P in muscle, liver and gill of fingerling were higher than other growth stages. Concentration of K in muscle, liver and gill of fish market was higher than other growth stages. Ca in muscle, liver and gill of male breeding stock were higher than other growth stages.