Dalla Costa Filipe Antônio, Lopes Letícia S, Dalla Costa Osmar Antônio
Programa de Pós-Graduação em Zootecnia, Faculdade de Ciências Agrárias e Veterinárias, University of São Paulo State UNESP-FCAV, Jaboticabal 14884-900, Brazil.
Grupo de Estudos e Pesquisas em Etologia e Ecologia Animal-ETCO, UNESP/FCAV, Jaboticabal 14884-900, Brazil.
Animals (Basel). 2017 Jan 18;7(1):5. doi: 10.3390/ani7010005.
The objective of this study was to assess the effects of two types of commercial suspension (leaf-spring (LS) vs. air suspension (AS)) installed on two similar double-decked trucks on blood cortisol and lactate concentration, lairage behavior, carcass skin lesions and pork quality traits of 120 crossbred pigs. The suspension type neither influenced pig behaviour in lairage nor blood cortisol and lactate concentrations ( > 0.10). However, when compared with the AS suspension system, the use of LS increased the number of skin lesions in the back and thigh ( = 0.03 and = 0.01, respectively) and produced thigh with lower pH ( < 0.001) and yellower colour (higher b* value; = 0.03), and paler back muscles (subjective colour; < 0.05), with a tendency to lower pH ( = 0.06). Therefore, the use air suspension system can improve carcass and meat quality traits of pigs transported to slaughter.
本研究的目的是评估安装在两辆相似双层卡车上的两种商用悬架（钢板弹簧悬架（LS）与空气悬架（AS））对120头杂交猪的血液皮质醇和乳酸浓度、待宰行为、胴体皮肤损伤及猪肉品质性状的影响。悬架类型既不影响猪的待宰行为，也不影响血液皮质醇和乳酸浓度（P>0.10）。然而，与空气悬架系统相比，使用钢板弹簧悬架增加了背部和大腿的皮肤损伤数量（分别为P=0.03和P=0.01），并使大腿pH值降低（P<0.001）、颜色更黄（b*值更高；P=0.03），背部肌肉更苍白（主观颜色；P<0.05），且有pH值降低的趋势（P=0.06）。因此，使用空气悬架系统可改善运输至屠宰场的猪的胴体和肉质性状。
