Effects of Dietary Supplementation of Oregano Essential Oil to Sows on Oxidative Stress Status, Lactation Feed Intake of Sows, and Piglet Performance

Figure 3

Diet effects on the value of HOMA-IR (a) and HOMA-IS (b) of sows. Plasma glucose and insulin concentrations before feeding were measured, the indirect methods to evaluate insulin sensitivity by homeostasis model assessment (HOMA); HOMA-IR = [(fasting insulin, mIU/L) × (fasting glucose, mmol/L)]/22.5; HOMA-IS = 1/[(fasting insulin, mIU/L) × (fasting glucose, mmol/L)]. Values are means ± SEM (). Effect of sampling day (). Effect of dietary treatment (). Effect of dietary treatment (). There was a treatment × sampling day interaction for HOMA-IS value of sows (). C = control diet; OEO = 15 mg/kg oregano essential oils diet.

(a)

(b)