Pigs raised in a hot environment have an increased carcass fat to protein ratio (Christon 1988). As heat stress (HS) attenuates lipid mobilisation in growing pigs (Pearce etal. 2013), it is hypothesised that the increased adiposity is due to elevatedinsulin, an anti-lipolytic hormone. We have previously observed that supra-nutritional supplementation of selenium (Se) or Vitamin E (VE) could alleviate the physiological response to HS in growing pigs (Liu etal. 2014). Therefore, the aim of this studywas to investigate the effects of HS and antioxidant supplementation on insulin related metabolism.
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