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Selenium Levels and Glutathione Peroxidase Activity in Blood, Plasma and Reproductive Organs in Dairy Cows

Selennivåer og glutation peroksydaseaktivitet i blod, plasma og kjønnsorganer hos kyr

Abstract

Selenium levels and glutathione peroxidase activity were determined in blood and reproductive organs in 12 Norwegian dairy cows at different stages of the oestrus cycle. Blood samples were collected before slaughter, and samples from genital organs were obtained as soon as possible after slaughter. Blood and plasma selenium levels were significantly correlated with selenium levels in follicular fluid, and in ovarian and uterine tissues, but not with the levels in corpora lutea. The activity of blood glutathione peroxidase was significantly correlated with that in ovarian and uterine tissue, but not with activity in corpora lutea and follicular fluid. No effect of stage of oestrus cycle on selenium content or glutathione peroxidase in reproductive tissue was observed.

Sammendrag

Innholdet av selen og aktiviteten av glutation peroksydase ble målt i blod og kjønnsorganer hos 12 kyr i forskjellige stadier av syklus. Blodprøver ble samlet før slakting, og prøver av vev fra genitalia ble tatt ut så snart som mulig etter slakting.

Nivåene av selen i blod og plasma var signifikant korrelert med selennivåene i follikkelvæske, ovarievev og uterusvev, men ikke med nivåene i corpora lutea. Aktiviteten av glutation peroksydase i blod var signifikant korrelert med nivåene av glutation peroksydase i ovarievev og uterusvev, men ikke med nivåene i corpora lutea og follikkelvæske. Det ble ikke funnet noen sammenheng mellom nivåer av seien eller glutation peroksydase og stadium i syklus.

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Correspondence to Erik Ropstad.

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Ropstad, E., Frøslie, A. & Landsverk, K. Selenium Levels and Glutathione Peroxidase Activity in Blood, Plasma and Reproductive Organs in Dairy Cows. Acta Vet Scand 29, 431–435 (1988). https://doi.org/10.1186/BF03548639

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Keywords

  • fertility
  • nutrition
  • oestrus cycle.
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