Abstract
Ninety six crossbred pigs were used in a 4×2×2 experiment to determine the influence of management strategy, moisture infusion and ageing on pork quality. The treatments were i) management strategy (MS) during the last 28days pre-slaughter (Control: conventional diet; Ractopamine (Rac): porcine somatotropin (pST); and combined (Rac+pST): Rac for 28days and pST for the final 14days), ii) moisture infusion (MI) (0% and 10%) and iii) ageing period (24h and 7days). L* was decreased by pST and Rac+pST, followed by Rac and then the Control MS. Shear force was increased by Rac and Rac+pST but not by either pST or the Control MS. MI decreased L* and shear force while ageing for 7days increased L* and yellowness, and decreased drip loss and WB shear force. MI or ageing for 7days improved sensory pork quality. The results from this experiment indicated that as expected MI and ageing can be used to improve pork quality.
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