[Investigation of the prevalence of summer eczema in Icelandic horses in northern Germany].

This research investigates the influence of geographic location and genetic factors on the prevalence of Summer Eczema (SE) in Icelandic horses in Northern Germany. The study found that Icelandic horses imported from Iceland showed a higher prevalence of SE compared to those born in Germany or other countries. It also identified the horses’ color and age as significant factors.

Significance of the study

• This study is critical as it presents valuable insights into the factors influencing the prevalence of Summer Eczema in Icelandic horses. The knowledge gained from this research can help in developing effective prevention strategies.
• It also underscores the role of geographical and genetic factors in disease prevalence, offering a wider perspective in the study of equine health.
• The findings provide a basis for further studies on the development of SE, particularly in relation to genetic predispositions and climatic conditions.

Detailed Findings

• The study surveyed 490 Icelandic horses from 24 stud farms in Lower Saxony and Westphalia. It found that 29.8% of these horses suffer from SE.
• Imported horses were predominantly affected, with 71.9% showing signs of SE. In contrast, German-born and horses from other countries had a lower prevalence rate.
• Mares and geldings were more prone to SE than stallions.
• Among different age groups, horses aged five to eight years were found to be most affected. Their color also significantly influenced the rate of SE, with chestnut and gray horses being less likely to develop the condition than bay, black, or piebald horses.
• The study also found a correlation between high inbreeding coefficients and lower SE rates in horses imported from Iceland.

Suggestions for further action

• Based on the findings, the research suggests that reducing the import of Icelandic horses from Iceland could be an effective measure to curb the high prevalence of SE in Germany.
• The results recommend further investigations on the link between inbreeding and susceptibility to SE. Such studies could provide more targeted methods to reduce the prevalence of this condition.

Limitations of the study

• Despite the detailed analysis, the study does not explore the exact reasons behind the high prevalence of SE among imported Icelandic horses. Future research could delve into the specific health, genetic, or environmental factors at play in Iceland that contribute to higher SE occurrences.