Haematological profile in foals during the first year of life.

The research article provides updated reference intervals (RIs) for 13 haematological values in foals over their first year of life, emphasizing the need for clinicians to use age-based RIs when treating young horses.

Objective and Methodology of Research

• The aim of the researchers was to provide updated RIs for 13 haematological values in foals when they are 2, 7, 14, 30, 90, 180, and 365 days old.
• To do this, they gathered venous blood samples from healthy foals at those ages and analysed the samples based on 13 haematological values.
• The 95% RIs for each of these values were determined using a statistical method known as bootstrapping.
• A Friedman test was applied to study the fluctuations in each measured value over time.

Results of the Research

• The findings showed prominent trends in the changes over time for several of the haematological values.
• The count of white blood cells notably increased between the 2nd and 90th day.
• Lymphocyte counts increased from the 2nd day up to the 180th day.
• On the other hand, the mean corpuscular haemoglobin and mean corpuscular volume significantly dwindled between day 2 and day 90.

Significance of the Research

• The study emphasizes that the normal haematological values in foals not only differ from those in full-grown horses but also vary significantly throughout the first year of the foals’ life.
• Therefore, it is critical for clinicians to use age-based reference intervals when offering treatment to ill foals.