COMPARATIVE ANALYSIS OF INFLUENCE OF pH ON THE LEVEL OF THE ACTIVITY OF DIGESTIVE ENZYMES OF RUSSIAN STURGEON, SIBERIAN STURGEON AND THEIR HYBRID BY MEANS OF NONMETRIC MULTIDIMENSIONAL SCALING
Journal Title: Вестник Астраханского государственного технического университета. Серия: Рыбное хозяйство - Year 2013, Vol 0, Issue 2
Abstract
The pH impact on some digestive enzymes of the intestinal mucous tunic of Rrussian sturgeon, Siberian sturgeon and their hybrid ROLO is examined. The influence of the pH on α-amylase, maltase, alkaline phosphatase and caseinlytic proteinases of yearlings is studied with subsequent comparative analysis of the reactions of the enzymes on the changes of pH. The method of the nonmetric multidimensional scaling is used as a main tool of the comparative analysis. Finally, the degree of the similarity between enzymes of the parent species and hybrids is shown as a distance between points on the two-dimensional diagram of dispersion. It is stated that the enzymes of the hybrid in their responses to the changing pH are more similar to analogous enzymes of the Russian sturgeon. Besides, the maximum similarity is registered in the acid environment when pH is lower than 6. When pH grows similarity of hybrid to parent species essentially decreases, especially in case of comparison of the activity of the enzymes of hybrid and Siberian sturgeon.
Authors and Affiliations
Bednyakov Andreevich , Martyanov Sergeevich
Keywords
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