Carnitine concentrations in blood of high-yielding cows in the peripartal period

FURLL M., HARMEYER J., TEUFEL E., Citil M.

5th Symposium on Vitamins and Additives in Human and Animal Nutrition, Jena, Almanya, 24 - 25 Eylül 1997, ss.297-303 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Jena
  • Basıldığı Ülke: Almanya
  • Sayfa Sayıları: ss.297-303
  • Erciyes Üniversitesi Adresli: Hayır

Özet

In the blood serum of 18 healthy SE cows (yielding 8200 kg FCM/year) total and free carnitine (TC and FC) concentrations were measured to be different ante and post partum. Reference values derived from these data were calculated to be: ante partum TC: 9.0 - 15.0 and FC 7.0 - 12.0; post partum TC: 6.6 - 12.0 and FC 4.0 - 8.5 mu mol/l. In the early stage of lactation carnitine is reduced, but has to be rated differently: in phase 1 carnitine is still sufficiently available and rises with increasing lypolysis. In phase 2, 4 to 12 weeks post partum, carnitine concentration falls below the optimum with the effect that ketogenesis is promoted. In this situation a substitution seems to be successful.