BHBA & NEFA LEVEL IN DAIRY COWS : AN INDICATORS OF KETOSIS CONDITION IN DAIRY CATTLE
In ketosis dairy cows, the levels of β-hydroxybutyrate (BHBA) and non-esterified fatty acids (NEFA) are commonly measured to diagnose and monitor the condition. Here’s an overview of BHBA and NEFA levels in ketosis dairy cows:
β-hydroxybutyrate (BHBA):
BHBA is a ketone body produced in the liver as a result of excessive fat mobilization and incomplete oxidation of fatty acids.
BHBA is considered a reliable indicator of ketosis in dairy cows and is commonly measured in blood samples.
The threshold level for diagnosing subclinical ketosis is typically around 1.2 to 1.4 mmol/L of BHBA in blood plasma.
Higher levels of BHBA (usually above 2.5 mmol/L) indicate clinical ketosis, which is associated with more severe metabolic disturbances.
Non-esterified fatty acids (NEFA):
NEFA refers to fatty acids that are not bound to glycerol, representing the mobilization of stored fat from adipose tissue.
NEFA levels increase when there is an imbalance between energy intake and energy requirements, leading to excessive fat mobilization.
Elevated NEFA levels indicate a higher degree of negative energy balance and can be an early indicator of impending ketosis.
NEFA levels above 0.4 to 0.7 mmol/L are often considered indicative of subclinical ketosis or a state of excessive fat mobilization.
Monitoring BHBA and NEFA levels in ketosis dairy cows helps in early detection, assessment of severity, and monitoring the response to treatment. Regular testing enables prompt intervention and adjustment of management practices to prevent further complications associated with ketosis.
It’s important to note that the specific threshold values for diagnosing and managing ketosis may vary depending on the diagnostic method, cow breed, lactation stage, and management strategies employed. Consulting with a veterinarian or a qualified nutritionist who can interpret the results in the context of the individual cow and herd is crucial for accurate diagnosis and appropriate management of ketosis.
source-Team LITD
