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The aim of the studies was to assess the protein composition of the polar fox’s (Alopex lagopus L.) semen plasma with the use of the electrophoretic method (SDS-PAGE) and to find out whether there are statistically important differences in the protein profiles between the beginning and the end of the reproductive period and between the selected proteins and the semen traits. The examined material...
Cryopreservation of red deer sperm is essential for establishing the biodiversity of this species. The aim of the study was to test four extenders and two freezing methods on the cryosurvival of red deer spermatozoa. Semen collected with an artificial vagina from 4 stags was diluted with compared extenders: A (citrate- -fructose-egg yolk-glicerol), B (Tris-fructose-citric acid-egg yolk-glicerol),...
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