Impactul mono- şi poliinvaziilor asupra calităţii cărnii la sânger (Hypophthalmichthys molitrix (Valenciennes, 1844)) [articol]

Abstract

This study evaluated the impact of mono- and polyinvasions on the chemical composition of muscle tissue in silver carp (Hypophthalmichthys molitrix). Specimens were grouped based on infestation levels: Group I (uninfested), Group II (infested with Dactylogyrus sp.), Group III (infested with Diplostomum spathaceum), and Group IV (infested with both species of parasites). Results revealed a decline in protein and lipid content in infested specimens. In Group II, protein content decreased by 1.94% compared to Group I. Group III exhibited an 11.21% protein reduction compared to Group I and a 6.95% decrease compared to Group IV. The lowest protein level was observed in Group IV, with a 17.38% reduction versus Group I. Lipid content followed a similar trend, with Group IV showing the highest decrease (36.94%) compared to Group I. Moisture and pH levels increased in infested groups, peaking in Group IV. Moisture rose by 2.35% in Group IV versus Group I, while pH levels were 3.3% higher. These findings underline the negative effects of mono- and polyinvasions on silver carp muscle quality, emphasizing the need for parasite management strategies.