Abstract: | Considering that fish represents a nutrient possessing a high dietetic and nutritive value, the studies devoted to some of its biochemical and physiological parameters have aroused on increasing interest from the specialists' part.
Under conditions of artificial feeding of the fish grown in ponds, lakes and accumulation dams, substitution of the natural food with artificial products may cause more or less beneficial modifications on the substances' metabolism. The intensity of such modifications may be evidenced by the evaluation of the different biochemical parameters from blood, muscle, digestive tube, liver etc. (VASILE et al., 2005 b).
Catalase (H2O2: H2O2 - oxidoreductase), a bicomponent enzyme belonging to the class of oxidoreductase, with hemine or ferriporphyrine IX as a prosthetic group, is largely occurring in almost all cells of the animals tissues, in both invertebrates and vertebrates (COJOCARU, 1997).
The studies devoted to catalase, an adaptation enzyme in fish, showed that its activity varies as a function of temperature, high density of the batches, quality of the administrated food, age of the individuals and organ taken into analysis (BATTES et al., 1974 - 1975; ARTENIE, 1990; VASILE et al., 2005 a).
The researches developed on catalase, as well as on other breathing and digestive enzymes playing an important part in metabolism, may provide some precious indications, permitting an as exact as possible evaluation of fish' physiological condition, as well as the application of the most efficient methods of intensive growth, for a rational and complex turning to good account of the existing accumulation dams through aquaculture. |
