[Mastitis in sheep in the Netherlands].

Area of Science:

• Veterinary Medicine
• Animal Health
• Sheep Production

Context:

• Limited data exists on udder health in Dutch sheep populations.
• Udder health is crucial for milk production and animal welfare in sheep farming.
• Subclinical mastitis can significantly impact flock productivity and economic viability.

Purpose:

• To assess udder health status in commercial sheep flocks in Gelderland, Netherlands.
• To determine the prevalence of high somatic cell counts (SCC) in nursing ewes.
• To investigate factors influencing SCC, including lactation stage, ewe age, and lambing season.

Summary:

• Somatic cell counts were measured in 936 nursing ewes across 16 farms between March 1981 and April 1982.
• A significant percentage (20-25%) of samples exceeded 2,000,000 cells/ml, higher than literature values.
• SCC peaked early in lactation, decreased, then rose near weaning, and increased with ewe age.

Impact:

• Findings suggest a higher prevalence of udder health issues than previously recognized in Dutch sheep.
• Results provide baseline data for future udder health monitoring and intervention strategies.
• Highlights the need for further research into causative agents and management practices affecting sheep udder health.