Lyophilization as an alternative for conservation of equine plasma as a source of immunoglobulin G for neonatal foals.

This research explores the possibility of preserving equine plasma—essential for newborn foals’ health—through a method called lyophilization. It has been found to effectively maintain high concentration of vital immune-related proteins while reducing some non-critical components during reconstitution. Resultantly, lyophilized equine plasma is proposed as a potential, practical alternative to fresh plasma.

Introduction

• This research stemmed from the need to conserve equine plasma, which is important for the health of neonatal foals, particularly those experiencing failure of passive transfer immunity.
• The process of freeze-drying the plasma—known as lyophilization—is suggested as a simple and affordable mode of transportation and storage of this essential biological material.

Methodology

• Plasma was collected from six healthy male horses.
• The process of freeze-drying was done to create Lyophilized Plasma (LP).
• Strikingly, the LP was restored in deionized water to bring it back to its original volume.
• Quantitative analysis was performed for concentrations of immunoglobulin G (IgG), total protein (TP), and total solids (TS) in fresh plasma and LP, using radial immunodiffusion and refractometry techniques.

Results

• It was revealed that the amounts of IgG in LP did not differ significantly from those in fresh plasma.
• However, the levels of total protein and total solids showed a slight decrease in LP, when compared to those in fresh plasma.

Conclusion

• The lyophilization process appears successful in conserving IgG concentration, while incurring minimal losses in TP and TS during the procedure of reconstitution.
• Lyophilized equine plasma is therefore posited as a suitable, promising alternative to fresh plasma.
• Future efforts are advised to concentrate on optimizing the product, verifying its effectiveness and durability with clinical trials, and devising handy packaging options for its usage in the horse industry.