Table 6. Pearson’s correlations between metabolites and insulin resistance indexes (estimated values and their significance are below and above the diagonal, respectively) for dairy cows under tropical conditions.
| BHB | NEFA | Glucose | Insulin | T 4 | T 3 | Cortisol | BCS | QUICKI | RQUICKI | RQUICKI–BHB | HOMA | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BHB | 1 | 0.33 | 0.07 | 0.01 | 0.01 | 0.01 | 0.11 | 0.00 | 0.01 | 0.01 | 0.67 | 0.00 |
| NEFA | 0.24 | 1 | 0.18 | 0.05 | 0.19 | 0.3 | 0.01 | 0.41 | 0.03 | 0.68 | 0.05 | 0.08 |
| Glucose | −0.44 | −0.33 | 1 | 0.03 | 0.02 | 0.03 | 0.00 | 0.00 | 0.00 | 0.01 | 0.29 | 0.00 |
| Insulin | −0.62 | −0.47 | 0.52 | 1 | 0.04 | 0.01 | 0.15 | 0.00 | 0.00 | 0.00 | 0.09 | 0.00 |
| T 4 | −0.59 | −0.32 | 0.56 | 0.48 | 1 | 0.05 | 0.00 | 0.01 | 0.00 | 0.03 | 0.55 | 0.00 |
| T 3 | −0.61 | −0.26 | 0.51 | 0.6 | 0.46 | 1 | 0.03 | 0.01 | 0.02 | 0.03 | 0.45 | 0.00 |
| Cortisol | −0.39 | −0.57 | 0.69 | 0.36 | 0.66 | 0.51 | 1 | 0.01 | 0.01 | 0.31 | 0.48 | 0.02 |
| BCS | −0.74 | −0.21 | 0.8 | 0.72 | 0.63 | 0.62 | 0.6 | 1 | 0.00 | 0.00 | 0.10 | 0.00 |
| QUICKI | 0.62 | 0.52 | −0.8 | −0.89 | −0.64 | −0.54 | −0.6 | −0.87 | 1 | 0.00 | 0.15 | 0.00 |
| RQUICKI | 0.62 | −0.1 | −0.62 | −0.72 | −0.52 | −0.52 | −0.25 | −0.85 | 0.77 | 1 | 0.00 | 0.00 |
| RQUICKI–BHB | 0.11 | −0.47 | −0.26 | −0.41 | −0.15 | −0.19 | 0.18 | −0.4 | 0.35 | 0.78 | 1 | 0.06 |
| HOMA | −0.64 | −0.43 | 0.76 | 0.93 | 0.66 | 0.66 | 0.53 | 0.86 | −0.97 | −0.82 | −0.45 | 1 |
BHB: betahidroxibutirate; NEFA: nonesterified fatty acid; T 3: triiodothyronine; T 4: thyroxine; BCS: body condition score; QUICKI: quantitative insulin sensitivity check index; RQUICKI: revised quantitative insulin sensitivity check index; RQUICKI–BHB: revised quantitative insulin sensitivity check index–BHB; HOMA: homeostasis model assessment.
The correlations were declared significant with a p < 0.05.