Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: northern pike

Sortuj według:

Ogranicz wyniki do:

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Effect of culture conditions on magnesium and zinc concentrations in muscles of freshwater fish

100%

Brucka-Jastrzebska E., Kawczuga D., Protasowicki M., Rajkowska M.

Journal of Elementology

2010

tom 15

nr 2

239-250

The aim of the study was to estimate the effect of culture conditions and culture site on magnesium (Mg) and zinc (Zn) concentrations in freshwater fish. The study encompassed dorsal muscles in five fish species: common carp (Cyprinus carpio L.), rainbow trout (Oncorhynchus mykiss Walbaum) and Siberian sturgeon (Acipenser baeri Brandt), northern pike (Esox lucius L.) and grass carp (Ctenopharyngodon idella Valenciennes). A total of 125 fish comprised 25 individuals of each species, aged from 6, 9, and 12 months. The fish were cultured in privately owned fish breeding ponds (Western Pomerania, Poland). For chemical and biochemical assays, samples of dorsal muscles were taken from each fish. Tissue samples were wet mineralised in concentrated HNO3 in a CEM MDS 2000 microwave oven. Magnesium and zinc concentrations were determined by inductively coupled plasma atomic emission spectrometry (ICP-MS) in a Jobin Yvon type JY-24 apparatus. The pursuit of the research we had an approval of the Polish Local Ethics Committee nr 9/05. The magnesium concentration in the dorsal muscles ranged from 95.3÷347.6 mg kg–1 w.w. The highest Mg concentration was found in rainbow trout (347.6±32.2 mg kg–1 w.w.), and the lowest in grass carp (95.3±11.3 mg kg–1 w.w.). Zinc concentration varied from 6.7÷98.8 mg kg–1 w.w. The highest was found in the muscles of Siberian sturgeon (98.8±0.4 mg kg–1 w.w.), and the lowest in rainbow trout (6.7±0.7 mg kg–1 w.w.). It was found that the breeding place significantly affected the Zn and Mg concentrations in the muscle tissue among individual freshwater fish species. The magnesium and zinc concentrations were also significantly affected by the type of feed.

Ograniczanie wyników

1 Journal of Elementology

1 Brucka-Jastrzebska E.

1 Kawczuga D.

1 Protasowicki M.

1 Rajkowska M.

1 2010

Wyniki wyszukiwania

Effect of culture conditions on magnesium and zinc concentrations in muscles of freshwater fish