Selenium content in the blood serum and urine of ewes receiving selenium-enriched unicellular alga Chlorella
2007
Travnicek, J.,Jihoceska Univ., Ceske Budejovice (Czech Republic). Katedra Anatomie a Fyziologie Hospodarskych Zvirat | Pisek, L.,Jihoceska Univ., Ceske Budejovice (Czech Republic). Katedra Anatomie a Fyziologie Hospodarskych Zvirat | Herzig, I.,Vyzkumny Ustav Veterinarniho Lekarstvi, Brno (Czech Republic) | Doucha, J.,Akademie Ved, Trebon (Czech Republic). Mikrobiologicky Ustav | Kvicala, J.,Endokrinologicky Ustav, Prague (Czech Republic) | Kroupova, V.,Jihoceska Univ., Ceske Budejovice (Czech Republic). Katedra Anatomie a Fyziologie Hospodarskych Zvirat | Rodinova, H.,Jihoceska Univ., Ceske Budejovice (Czech Republic). Katedra Anatomie a Fyziologie Hospodarskych Zvirat
The effect of Se supplementation in inorganic and organic forms was investigated in three five-member groups of ewes (non pregnant, pregnant or lactating) and their lambs in the course of 7 months. The basal feed ration contained 55 microg Se, ewes of experimental group E1 received a supplement of 180 microg Se in sodium selenite, and ewes of experimental group E2 were applied a supplement of 180 microg Se bound in the biomass of the alga Chlorella. Control (C) animals did not receive any Se. Average contents of Se in the blood serum of ewes were as follows: E1 114.2; E2 103.1; C 68.6 microg/L (P less than 0.001). A decrease in serum Se was recorded in all groups in the last third of pregnancy and in the first week post partum. Average contents of urinary Se were also higher in experimental groups: E1 25.4; E2 18.7; C 13.3 microg/L (P less than 0.001). The positive effect of Se supplementation to ewes was reflected in its higher average concentration in the blood serum of born lambs: E1 48.5; E2 53.5; C 30.3 microg/L (P less than 0.05). The effect of Se bound in Chlorella biomass was higher and persisted until 30 days of lamb age: E1 52.9; E2 59.0; C 35.5 microg/L (P less than 0.01). The average number of lambs born per ewe was 1.0 in group C and E1, and 1.8 in group E2.
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