Dynamics of IgG in the blood serum of sheep with different selenium intake
2008
Rodinova, H.,Jihoceska Univ., Ceske Budejovice (Czech Republic). Zemedelska Fakulta | Kroupova, V.,Jihoceska Univ., Ceske Budejovice (Czech Republic). Zemedelska Fakulta | Travnicek, J.,Jihoceska Univ., Ceske Budejovice (Czech Republic). Zemedelska Fakulta | Stankova, M.,Jihoceska Univ., Ceske Budejovice (Czech Republic). Zemedelska Fakulta | Pisek, L.,Jihoceska Univ., Ceske Budejovice (Czech Republic). Zemedelska Fakulta
An experiment was conducted to study the effect of supplementation of ewes with organic and inorganic Se on the level of IgG during infertility, pregnancy and lactation and in their offspring until two months of age. Two experimental groups were supplemented as follows: E1 (n=5): 180 microg Na2SeO3 per ewe/day, E2 (n=5): 180 microg Se per ewe/day organically bound in the biomass of an alga of the genus Chlorella. The average number of newborn lambs per ewe was 1.0, 1.0 and 1.8 in controls, E1 and E2, respectively. The supplementation did not influence either the weight or the growth of lambs. The content of IgG increased significantly in ewes in the last third of pregnancy, regardless of Se supplementation, while their postpartal decrease (P less than 0.01) followed only in controls. Control lambs had a significantly lower level of IgG on days 30 and 60 after birth, especially in comparison with E2 lambs. The results document a lower level of immunity in the postpartal period of lambing ewes without Se supplementation and enhancement of postnatal proteosynthesis in the offspring of lambing ewes supplemented with the organic form of Se.
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