Time of placenta expulsion and serum contents of selenium and vitamin E in cows before calving

• Autorzy: Jaskowski J.M.
• Języki publikacji: EN

Abstrakty

EN

Basing on examination of selenium and vitamin E contents in blood serum of 120 cows, we tried to evaluate the relationship between selenium content in serum 23 weeks before calving and the time of placenta expulsion, and also vitamin level at which despite selenium deficiency, the risk of retentio secundinarum is low. When selenium concentration in serum was lower than 30 ng/ml less cows expelled the membranes during 6 first hours after parturition, and 23.5% of cows had retentio secundinarum i.e. about four times higher than in control animals. Simultaneously, considerable increase of retentio rate in deficient cows was noted when serum selenium level was reduced below 20 ng/ml. In deficient cattle, together with a rise of blood serum vitamin E, the percentage of cows with retained fetal membranes dimnished

• Wydawca: -
• Czasopismo: Bulletin of the Veterinary Institute in Puławy
• Rocznik: 1987-1988
• Tom: 30-31
• Numer: 1-4
• Opis fizyczny: p.112-116,fig.,ref.

Twórcy

autor

Jaskowski J.M.

• Department of Deficiency Diseases, The Veterinary Research Institute, Branch Bydgoszcz, Powstancow Wlkp.10, 85-000 Bydgoszcz, Poland

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