The effect of Leiber Beta-S on selected immunity indicators in calves
2014
Wojcik, R., University of Warmia and Mazury in Olsztyn (Poland). Dept. of Microbiology and Clinical Immunology
A wide variety of dietary supplements containing polysaccharides are being introduced on the market. One of them is Leiber Beta-S (beta-1,3/1,6-D-glucan) whose immunostimulatory effects have not yet been fully evaluated, in particular in polygastric animals. The aim of this study was to evaluate the effect of this supplement on selected indicators of cellular and humoral immunity in calves. The experiment was performed on 14 calves aged 30 +/- 2 days, divided into two equal groups of control and experimental animals. The feed administered to calves of the experimental group was supplemented with Leiber Beta-S at 50 mg/kg body weight, whereas control calves were administered standard farm-made feed without supplementation. Blood was sampled before the experiment (day 0) and on days 15, 30 and 60 to determine the immunity indicators (proliferative response of lipopolysaccharide- and concanavalin A-stimulated lymphocytes, respiratory burst activity, potential killing activity of phagocytes, gamma globulin concentrations, lysozyme activity, ceruloplasmin activity) and biochemical indicator (total protein concentrations). Diet supplemented with Leiber Beta-S stimulated the immune system of calves. Significant differences between the experimental and the control group were found in lysozyme and ceruloplasmin activity, gamma globulin concentrations, potential killing activity of phagocytes, proliferative response of lymphocytes (P less than 0.001) and respiratory burst activity of phagocytes (P less than 0.05). No differences were found in the serum total protein between the experimental and the control group. This study reports for the first time the effect of Leiber Beta-S (beta-1,3/1,6-D-glucan) on selected biochemical and immunity indicators in calves.
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