This experiment was aimed at evaluating the effect of three truck-tier models (MC) (metallic simple tier, metallic duple tier and wood simple tier) on the frequency of different kinds of carcass lesions (FLC) and pork quality. For this study, three hundred and sixty gilts with an average body weight of 132.72±11.09kg were used. Statistic analysis of the data considered the effects of Blocks (BL), MC and the interaction MC x BL. MC had significant effect on frequency of lesions caused by fighting, on total frequency of injuries, on pH1 of muscle Semispinalis capitis (SC), on pH U of muscle SC, Longissimus dorsi (LD) and Semimembranosus (SM) and on color of the muscles LD e SM. Pigs transported in simple metallic truck-tier showed increased values of pH and muscles color. As a conclusion, transportation of slaughter pigs in simple wood truck-tier affects animal welfare negatively, while metallic truck-tier showed positive effects on meat pH and color compared to.
carcass blemishes score; duple truck-tier; metallic truck-tier; pre-slaughter handling; simple truck-tier; swine transport; wood truck-tier
