Readability of branding symbols in horses and histomorphological alterations at the branding site.

The research article investigates the visual clarity of branding symbols in horses and the biological impact and changes at the site of the brand. The study found that despite causing tissue damage resembling third-degree burns, hot iron branding doesn’t consistently lead to clear identification of older horses.

Research Methodology and Results

• The study was conducted on 248 horses participating in an equestrian championship, focusing on the identification of symbols and numbers branded.
• Another group of 28 horses, euthanased for different reasons, were used for microscopic examination of the branded area.
• Out of all the horses, only one did not display any pathological changes at the brand site. The rest showed signs of epidermal hyperplasia (an increase in skin cell production), increase in dermal collagenous fibrous tissue (enhanced production of the protein that supports skin strength and elasticity), and loss of adnexal structures (hair follicles, sweat glands etc).
• There were two specific instances in foals where an ulcerative to necrotizing dermatitis was observed, which researchers interpreted as complications of recent branding lesions.

Readability and Identification

• Despite the damage caused by hot iron branding, the study found that it isn’t a reliable method for identifying a significant number of older horses.
• The breed-specific symbol was identifiable by three independent researchers in 84% of the horses. However, the double-digit branding number was correctly discerned by all three researchers in less than 40% of cases. This demonstrates the inconsistent readability of the brandings.

Conclusion

• Based on the findings, the researchers conclude that hot iron branding not only inflicts considerable damage akin to third-degree burns, but also fails to offer reliable identification of horses.

The study presents evidence against the traditional practice of hot iron branding, suggesting that it is both harmful to horses and ineffective for their identification.