摘要
The incidence of PSE(Pale, Soft, Exudative) pork by slaughter weight and handling conditions at preslaughtering stage such as fattening period, transport and lairage time were compared. The incidence of PSE pork were 24.9% when pigs were fed under 180 days and 18.9% when pigs were fed over 180 days for fattening. In the transport time from farm to slaughter house, the incidence of PSE pork were 46.6% for shorter than 30min and 45.65% for 30 min60 min and 35.44% for longer than 60min. The incidence of PSE pork were 55.6% for pigs had no lairage before slaughter, 33.9% for pigs held in lairage overnight. Therefore, the incidence of PSE pork were decreased by 6% with the extension of the fattening period and 9% with the transport time of longer than 1hr and 22.1% with lairage treatment before slaughter. The incidence of PSE pork were different in different location of farms and there were no significantly different in live weight, carcass weight and carcass yield between groups of lairage treatment. In conclusion, handling condition at preslaughtering stage such as extension of fattening period and lairage time were important to control pork quality and lairage treatment was not decreased the carcass yield.
摘要译文
通过屠宰重量和屠宰前处理条件（如育肥期，运输和粪便时间）比较PSE（苍白，软，渗出）猪肉的发病率。当猪饲喂180天时，PSE猪肉的发生率为24.9％，当饲喂180天以上的猪饲养时，猪肉的发病率为18.9％。在从农场到屠宰场的运输时间内，PSE猪肉的发生率在短于30分钟时为46.6％，在30分钟60分钟时为45.65％，在超过60分钟时为35.44％。在屠宰前没有粪便的猪的PSE猪肉发病率为55.6％，在夜间饲养的猪中发病率为33.9％。因此，随着育肥期的延长，PSE猪肉的发病率下降了6％，运输时间超过1小时后降低了9％，屠宰前的粪便处理降低了22.1％。 PSE猪肉在不同地点的发病率不同，不同处理组间的活重，胴体重和胴体产量差异不显着。总之，在育肥阶段的处理条件，如育肥期延长和粪便时间对于控制猪肉质量和胴体处理没有降低胴体产量是重要的。
Park, B.Y.; Lee, C.E.; Kim, I.S.; Cho, S.H.; Kim, Y.G.; Lee, J.M.; Yoon, S.K.;. Comparison of Incidence of PSE Pork by Fattening Period, Transport Time and Lairage Time and Lairage Time[J]. Journal of Animal Science and Technology. (Text mainly in Korean; Summaries in English), 2003,45(3): 483-490