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. 1987;28(2):249-50.
doi: 10.1186/BF03548247.

Whole milk progesterone analysis used for pregnancy diagnosis in beef cattle

V Rainio

Whole milk progesterone analysis used for pregnancy diagnosis in beef cattle

V Rainio. Acta Vet Scand. 1987.

Abstract

In Finland the routinely used method to determine milk progesterone level is based on whole milk analysis (Progesterone RIA-kit for Veterinary Diagnostic use, Farmos Group ltd.). The method is standardised for milk samples which are taken from the udder just after the cow has been milked. This kind of aftermilk sample contains a high percentage of fat and–as progesterone is lipidofil–also large, sexual-cycle correlated, variability in milk progesterone.

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References

    1. Heap PB, Laing JA. Pregnancy diagnosis in cows; progress report on the use of progestagen concentration in milk. British Cattle Breeders’ Club Digest. 1974;29:27–29.
    1. Laitinen J. Raportti Äpyli-projektista - Kaijata- louden maidontuotannon kausivaihtelun fysio- loginen tasaaminen: Maidon progesteroni- määritys lehmän kiiman ja tiineyden toteami- sessa. (Milk progesterone determination in diagnosing heat and pregnancy in the cow) 1982. p. 75.
    1. Laitinen J, Remes E, Tenhunen M, Hänninen O, Alanko M. Lehmän kiiman varmistaminen ja tiineyden toteaminen rasvattoman ja kokomai- don progesteronimäärityksellä. (Oestrus confirmation and pregnancy diagnosis of dairy cows by defatted and whole milk progesterone assays) Suomen Eläinlääkärilehti. 1982;88:519–529.

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