Abstract
The purine contents of animal foods are becoming widely concerned because excess intake of purine increases the risk of hyperuricemia and gout. In this study, we investigated the impacts of breed, tissue and sex on pork purine content and its correlations with multiple meat quality traits. Among six pig breeds, the average value of total purine contents (TP) in longissimus lumborum muscle was lowest in Chinese Laiwu pigs (114.2 mg/100 g) while highest in Chinese Bamaxiang mini pigs (139.3 mg/100 g). Considerable variations in TP were observed within most breeds, as well as among twelve pork organs with the range from 7 to 245 mg/100 g. However, no significant differences in TP were found between barrows and gilts. Intriguingly, lower purine content in meat was significantly associated with higher ultimate pH, better meat color and more abundant intramuscular fat content and marbling. The results thus suggest that the selection of low-purine pig species is available, which may simultaneously improve other meat quality traits.
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