Fig. 1
From: Genomewide analysis of circular RNA in pituitaries of normal and heat-stressed sows
The influence of heat stress on hormones and the antioxidative index. a The superoxide dismutase (SOD) vitality of sow serum in the thermoneutral (TN) and heat stress (HS) groups and (b–d) the level of heat shock protein 70 (HSP70), cortisol, and prolactin (PRL) of sow serum in the TN and HS groups. Values are expressed as means and SEM. n = 6; *P < 0.05; **P < 0.01 (t-test)