Driessen Bert, Beirendonck Sanne Van, Buyse Johan
Research Group Animal Welfare, 3583 Paal, Belgium.
Laboratory of Livestock Physiology, Department of Biosystems, 3001 KU Leuven, 3001 Leuven, Belgium.
Animals (Basel). 2020 May 2;10(5):788. doi: 10.3390/ani10050788.
Transport and associated handling can have adverse effects on pig welfare and meat quality. The purpose of the study was to determine (the variation of) effects of farm management, climate parameters, transport and lairage conditions on the meat quality of fattening pigs, heterozygous for the halothane gene. A total of 4763 fattening pigs were transported from 1 farm to a commercial slaughterhouse (distance 110 km) in 121 transports. From 2404 carcasses, carcass temperature and pH were measured 45 min post-mortem; 48 hours post-mortem pH, electrical conductivity, drip loss and meat color were registered. During the raising period sex, conditions at weaning (purchased or not as piglet, vaccination against mycoplasma) and (type of) pen during fattening (i.e., from about 22 kg to 105 kg) were registered to relate with pork quality. Transport season, weather parameters, regrouping or not during loading, transport combination (truck, trailer and driver), transport compartment and transport conditions (loading density, transport duration and unloading time) were monitored. At the slaughterhouse, duration of lairage and carcass conformation were followed up to examine correlations with meat quality parameters. Effects of farm management, climate parameters during transport, transport and slaughterhouse conditions on pork quality were demonstrated. Specifically, reducing lung lesions by vaccination during raising, no mixing of pigs during the transport process, sufficient lairage time and transporting no extreme muscled pigs can improve meat quality.
运输及相关处理会对猪的福利和肉质产生不利影响。本研究的目的是确定农场管理、气候参数、运输和待宰条件对携带氟烷基因杂合子的育肥猪的肉质的（变化）影响。总共4763头育肥猪分121批次从1个农场运输至一家商业屠宰场（距离110公里）。从2404具胴体中，宰后45分钟测量胴体温度和pH值；宰后48小时记录pH值、电导率、滴水损失和肉色。在育肥期记录性别、断奶条件（是否作为仔猪购入、支原体疫苗接种情况）以及育肥期间（即体重从约22公斤增至105公斤）的猪舍类型，以关联猪肉品质。监测运输季节、天气参数、装车时是否重新组群、运输组合（卡车、拖车和司机）、运输车厢和运输条件（装载密度、运输时长和卸载时间）。在屠宰场，跟踪待宰时长和胴体形态，以检查与肉质参数的相关性。证明了农场管理、运输期间的气候参数、运输和屠宰场条件对猪肉品质的影响。具体而言，育肥期通过接种疫苗减少肺部病变、运输过程中不混群、足够的待宰时间以及不运输极端肌肉发达的猪可改善肉质。
