Abstract
Boar taint is a major meat quality defect, which affects about 10% of entire male pigs. It is due to an excessive accumulation of skatole and androstenone in adipose tissue. One of the reasons for accumulation of these compounds is a low rate of their metabolism. Androstenone is metabolised in liver via the enzyme 3-beta-hydroxysteroid dehydrogenase (HSD). This enzyme is well characterised in the testis, where it participates in the synthesis of steroids, while its properties in liver are unknown. The aim of the present study was to characterise and compare properties of HSD from pig liver versus pig testis when metabolising androstenone.
Highlights
IntroductionBoar taint is a major meat quality defect, which affects about 10% of entire male pigs
The kinetic study revealed that hepatic HSD has lower affinity for androstenone as a substrate in comparison with testicular HSD
Inhibition studies showed that hepatic HSD was more sensitive to trilostane than testicular HSD (Figure2)
Summary
Boar taint is a major meat quality defect, which affects about 10% of entire male pigs. It is due to an excessive accumulation of skatole and androstenone in adipose tissue. One of the reasons for accumulation of these compounds is a low rate of their metabolism. Androstenone is metabolised in liver via the enzyme 3-betahydroxysteroid dehydrogenase (HSD). This enzyme is well characterised in the testis, where it participates in the synthesis of steroids, while its properties in liver are unknown. The aim of the present study was to characterise and compare properties of HSD from pig liver versus pig testis when metabolising androstenone
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