Characteristic of selected rheological parameters of stallion ejaculate

Dynamic viscosity of native (30 minutes after ejaculation) and 24 hours stored (at 4 °C) stallion ejaculate was measured. The ejaculate from 10 breeding stallions was examined in three different experimental series. The average value of dynamic viscosity at shear rate 1.02 s−1 was found to be 416.8...

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Bibliographic Details
Published inArchiv für Tierzucht Vol. 51; no. 1; pp. 16 - 22
Main Authors Severa, L., Máchal, L., Křivánek, I., Machatková, M., Mamica, O.
Format Journal Article
LanguageEnglish
Published 10.10.2008
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Summary:Dynamic viscosity of native (30 minutes after ejaculation) and 24 hours stored (at 4 °C) stallion ejaculate was measured. The ejaculate from 10 breeding stallions was examined in three different experimental series. The average value of dynamic viscosity at shear rate 1.02 s−1 was found to be 416.8 ± 10.1 mPa.s. The correlation between ejaculate volume, sperm concentration and viscosity was tested. The experiments resulted in finding a dependence between increasing viscosity and decreasing sperm concentration (rp = −0.67; P<0.05). Performed experiments with changing shear rate demonstrated non-Newtonian characteristics of stallion ejaculate with a clear shear-thinning behaviour. Stallion ejaculate appeared to be slightly time-dependent liquid.
ISSN:2363-9822
2363-9822
DOI:10.5194/aab-51-16-2008