Thomsen R, Edwards S A, Jensen B B, Rousing T, Sørensen J T
1Department of Animal Science,Aarhus University,Blichers Allé 20,PO Box 50,8830 Tjele,Denmark.
2School of Agriculture,Food & Rural Development,Agriculture Building,Newcastle University,Newcastle-upon-Tyne,NE1 7RU,UK.
Animal. 2015 Sep;9(9):1577-86. doi: 10.1017/S1751731115000786. Epub 2015 May 20.
To investigate the extent to which the level of androstenone and skatole decreases with a decrease in live weight and/or age at slaughter of entire male pigs produced under organic standards, 1174 entire male pigs were raised in parallel in five organic herds, distributed across four batches in summer and winter. The median androstenone level was high for organic entire male pigs (1.9 µg/g), but varied greatly both within and between herds. Median skatole level was 0.05 µg/g, also with a wide range both within and between herds. Decreasing live weight over the range of 110 ± 15.6 kg s.d. was found to decrease androstenone as well as skatole concentration, however, with different patterns of association. Age did not have significant direct effect on either androstenone or skatole levels. Androstenone levels were higher during winter than summer (P<0.0001), but no difference in skatole was found between seasons. The study concludes that decreasing live weight at slaughter could be an applicable management tool to reduce risk of boar taint and the level of tainted carcasses for a future production of entire male pigs within the organic pig production system, although further studies are needed as great variation in boar taint was found also for low weight animals.
为了研究在有机标准下饲养的全雄猪屠宰时，雄烯酮和粪臭素水平随体重和/或年龄降低而下降的程度，1174头全雄猪在五个有机猪场中平行饲养，分布在夏季和冬季的四个批次中。有机全雄猪的雄烯酮水平中位数较高（1.9微克/克），但在猪群内部和猪群之间差异很大。粪臭素水平中位数为0.05微克/克，在猪群内部和猪群之间也有很大差异。发现在110±15.6千克标准差范围内体重下降会降低雄烯酮和粪臭素浓度，然而，两者的关联模式不同。年龄对雄烯酮或粪臭素水平均无显著直接影响。冬季的雄烯酮水平高于夏季（P<0.0001），但不同季节的粪臭素水平没有差异。该研究得出结论，在有机生猪生产系统中，降低屠宰时的体重可能是一种适用的管理工具，以降低公猪异味风险和带异味胴体的比例，尽管由于发现体重较轻的动物公猪异味也有很大差异，还需要进一步研究。
