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Barium Selenate as a Slow-Release Selenium Preparation to Pigs
Bariumselenat som depot selenkilde til gris
Acta Veterinaria Scandinavica volume 27, pages 388–396 (1986)
Abstract
Pregnant sows were injected subcutaneously (s.c.) or intramuscularly (i.m.) with a barium selenate suspension (0.5–1.0 mg Se/kg body weight (b.w.)) and together with control animals fed a commercial diet. No response to the injection was seen either in blood selenium levels or in glutathione peroxidase (GSH-Px) activity in the sows. There was, however, a significant difference in these parameters between piglets born from treated dams and control animals. This status was maintained during the nursing period. In another experiment pigs (20 kg b.w.) on a Se-deficient diet were injected s.c. and i.m. with barium selenate (2.5 mg Se/kg b.w.). The treated groups maintained their blood levels of selenium and GSH-Px activity, although the selenium values in the group treated intramuscularly started to decline after 4 weeks. Organ samples from both groups were equal with regard to selenium at the time of slaughter while the control group showed a rapid decline both in blood selenium levels and GHS-Px activity.
Sammendrag
Barium selenat ble injisert intramuskulært (i.m.) eller subkutant (s.c.) på drektige purker (0.5–1.0 mg Se som bariumselenat/kg kroppsvekt). Sammen med kontrolldyr ble disse fôret med Svinefôr 3. Det ble ikke observert noen forandringer i blodverdiene verken for selen eller glutation peroksydase (GSH-Px) aktivitet. Imidlertid ble det registrert en signifikant forskjell for disse parametrene mellom grisunger født av behandlete og ubehandlete purker. Denne forskjellen ble opprettholdt gjennom hele sugeperioden. I et annet forsøk ble 20-kilos griser injisert enten s.c. eller i.m. med barium selenat (2.5 mg Se/kg kroppsvekt). Disse grisene sammen med kontrolldyr ble i forsøket gitt et spesiallaget selenfattig fôr. De behandlete grisene opprettholdt sine blodverdier av selen og GSH-Px aktivitet. Grisene som ble behandlet i.m. fikk imidlertid en nedgang i blodselen 4 uker etter injeksjonen. Ved slakting var seleninnholdet i lever og nyrer likt mellom de behandlete gruppene. Kontrollgruppen viste en meget raskt nedgang både i blodselen og GSH-Px aktivitet.
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Acknowledgements
Deposel® was placed at our disposal by Rycovet, Glasgow, Scotland. This study was financially supported by the Norwegian Agricultural Research Council. We want to thank the Agricultural University of Norway for supplying the pigs and Keren Bar-Yaacov for correcting the English text.
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Brun, E., Øvernes, G. Barium Selenate as a Slow-Release Selenium Preparation to Pigs. Acta Vet Scand 27, 388–396 (1986). https://doi.org/10.1186/BF03548153
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DOI: https://doi.org/10.1186/BF03548153