PMID: 1195256Oct 1, 1975Paper

Plasma progesterone, androstenedione and testosterone concentrations in freemartin heifers

Journal of Reproduction and Fertility
N SabaP G Millar

Abstract

Plasma concentrations of testosterone, androstenedione and progesterone in freemartins, and normal cyclic and non-cyclic heifers were studied. The plasma testosterone concentrations were in general less than 10 pg/ml in all animals. The mean androstenedione concentration of 28 pg/ml in 10- to 12-month-old freemartins was significantly lower than the mean of 58 to 60 pg/ml for normal 10- to 12-month-old heifers. At 24 months of age the mean androstenedione concentration in the freemartins had risen significantly to 65 pg/ml.

Citations

Feb 1, 1979·General and Comparative Endocrinology·P Chantaraprateep, M Thibier
May 12, 2005·Animal Reproduction Science·A M Padula
Dec 14, 2004·Theriogenology·Mitsuhiro TakagiMissaka P B Wijayagunawardane
Jun 6, 2000·The Veterinary Record·K C SmithF J Barr

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