Amino acid composition of muscle proteins of diploid and triploid tench (Tinca tinca, Linnaeus 1758)
Buchtova, H.(Veterinarni a Farmaceuticka Univ., Brno (Czech Republic))E-mail:buchtovah@vfu.cz | Smutna, M.(Veterinarni a Farmaceuticka Univ., Brno (Czech Republic)) | Vorlova, L.(Veterinarni a Farmaceuticka Univ., Brno (Czech Republic)) | Svobodova, Z.(Veterinarni a Farmaceuticka Univ., Brno (Czech Republic)) | Flajshans, M.(Jihoceska Univ., Vodnany (Czech Republic). Vyzkumny Ustav Rybarsky a Hydrobiologicky)
The aim of the study was to evaluate the influence of the sex, age (T3 - 36 months vs. T3+ - 42 months) and ploidy (diploids vs. triploids) on the composition of amino acids (AA) in muscles of tench. A total of 38 mixed samples of muscle tissue from 137 tench divided by sex, ploidy and age were analyzed. All the three factors studied had an effect on the AA composition, some of them were statistically significant. The effect of ploidy and sex was greater in the T3 than in the T3+ population. Lower levels of Val, Phe, Lys, His, Arg, Pro and Tyr were found in T3+ fish than in T3 animals. On the other hand, T3+ fish had higher values of Thr, Ile, Leu, Arg, Asp, Glu, Gly and Ala concentrations.
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