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Which metabolic profile component is associated with reduced milk production and increased risk of ketosis in dairy cows?
EXPLANATION
Bovine Ketosis, Pregnancy Toxemia & Fatty Liv
- Metabolic Biomarker of Negative Energy Balance: Elevated plasma Non-Esterified Fatty Acid (NEFA) concentration is the premier metabolic profile biomarker reflecting intense adipose tissue lipolysis during negative energy balance.
- Clinical Implications: High prepartum ($\gt 0.4\text{ mEq/L}$) and postpartum ($\gt 0.7\text{ mEq/L}$) NEFA concentrations strongly correlate with hepatic lipidosis, increased risk of clinical/subclinical ketosis, abomasal displacement, and marked reductions in peak milk production.
Correct option: (3) Plasma NEFA concentration
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