Table 2. Insulin resistance indexes used in the study for grazing dairy cows under tropical conditions.

Index name	Equation formula	Reference
HOMA: Homeostasis model assessment	HOMA = (insulin × glucose)	Youssef et al. (2017)
QUICKI: Quantitative insulin sensitivity check index	QUICKI = 1 / [log (G) + log (I)]	Cincović et al. (2017)
RQUICKI: Revised quantitative insulin sensitivity check index	RQUICKI = 1 / [log (G) + log (I) + log (NEFA)]	De Koster et al. (2016)
RQUICKI–BHB: Revised quantitative insulin sensitivity check index–BHB	RQUICKI–BHB = 1 / [log (G) + log (I) + log (NEFA) + log (BHB)]	Cincović et al. (2017)

G: glucose (mmol/l); I: insulin (pmol/l); log: decimal logarithm; NEFA: nonesterified fatty acid (mmol/l); BHB: betahidroxibutirate (mmol/l).