Abstract

Ioana Stanciu

DOI : http://dx.doi.org/10.13005/ojc/380228

This article presents the study of the rheological behavior of ruminal fluid in sheep obtained from barley feed and barley and yeast feed. We studied the influence of shear rate on the experimental values of shear stress and apparent viscosity for ruminal fluid obtained from feed with 40% barley. Measurements were made at 39° C, with a Physica MCR 300 rheometer, using the DG26.7 concentric cylinder measuring system. From the experimental data it can be seen that the best overlaps between the experimental data and the calculated curves are obtained when using the Herschel-Bulkley, Casson and Vocaldo models, ie precisely the models that propose the existence of a flow effort.

Rheology; Ruminal Fluid; sheep

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