Andresen O
Acta Endocrinol (Copenh). 1975 Feb;78(2):385-91. doi: 10.1530/acta.0.0780385.
5alpha-Androstenone2) has been measured in pig peripheral plasma by radioimmunoassay (RIA). In 73 mature boars values ranging from 1.2 ng to 54.1 ng per ml plasma with a mean value of 18.3 ng/ml and SD equal to 15.9 were found. In female pigs and castrated male pigs the mean concentrations were 2.3 ng/ml (n equal to 18) and 1.1 ng/ml (n equal to 19) with SD equal to 0.8 and SD equal to 0.3 respectively. Clear-cut diurnal variations in the concentration of 5alpha-androstenone in plasma samples from boars were not observed. Intravenous injection of HCG in boars caused an abrupt rise in the 5alpha-androstenone level reaching a maximum in 90 min. Twenty-eight hours after the injection a second peak of plasma 5alpha-androstenone was observed. Following castration of boars the level of 5alpha-androstenone in peripheral plasma fell within 4 days, to levels found in female pigs.
已通过放射免疫分析法（RIA）测定了猪外周血浆中的5α-雄烯酮。在73头成年公猪中，血浆中5α-雄烯酮的含量范围为每毫升1.2纳克至54.1纳克，平均值为18.3纳克/毫升，标准差为15.9。在母猪和去势公猪中，平均浓度分别为2.3纳克/毫升（n = 18）和1.1纳克/毫升（n = 19），标准差分别为0.8和0.3。未观察到公猪血浆样本中5α-雄烯酮浓度有明显的昼夜变化。对公猪静脉注射人绒毛膜促性腺激素（HCG）会导致5α-雄烯酮水平突然升高，在90分钟内达到最大值。注射后28小时，观察到血浆5α-雄烯酮出现第二个峰值。公猪去势后，外周血浆中5α-雄烯酮的水平在4天内降至母猪的水平。
