Table 5. Effect of the Saccharomyces cerevisiae supplementation on blood metabolites in dairy cows that were fed different TMRs during heat stress
Items | TMR-1 | TMR-2 | SEM | p-value |
No | SCCF | No | SCCF | Treat | TMR | Treat × TMR |
AST (GOT) (IU/L) | 78.00 | 83.00 | 78.08 | 69.08 | 4.41 | 0.947 | 0.453 | 0.448 |
ALT (GPT) (IU/L) | 22.44 | 22.11 | 24.58 | 23.33 | 0.89 | 0.700 | 0.366 | 0.804 |
Glucose (mg/dL) | 48.28 | 45.33 | 48.08 | 49.00 | 1.25 | 0.583 | 0.505 | 0.458 |
Triglyceride (mg/dL) | 8.56 | 7.17 | 7.25 | 7.92 | 0.26 | 0.177 | 0.600 | 0.056 |
Cholesterol (mg/dL) | 203.11 | 194.83 | 205.33 | 189.92 | 5.82 | 0.351 | 0.912 | 0.769 |
NEFA (mg/dL) | 78.89a | 40.67ab | 70.83a | 23.17b | 7.25 | 0.003 | 0.363 | 0.736 |
BUN (mg/dL) | 16.89a | 17.39a | 13.86b | 14.51b | 0.41 | 0.451 | < 0.001 | 0.924 |
Creatinine | 1.16 | 1.21 | 1.08 | 1.18 | 0.02 | 0.070 | 0.168 | 0.574 |
Treat, supplementation or not with S. cerevisiae culture fluid (5 mL/head, 2×107 CFU/mL).
Denotes comparison made within rows (p < 0.05).
TMR, total mixed ration; SCCF, Saccharomyces cerevisiae culture fluid; AST, aminotransferase; ALT, alanine aminotransferase; GOT, glutamic oxaloacetic transaminase; GPT, glutamlc pyruvic transamlnase; NEFA, nonessential fatty acid; BUN, blood urea nitrogen.