[Hock lesions in dairy cows--an overview].

Area of Science:

• Veterinary Medicine
• Animal Science
• Agricultural Engineering

Context:

• Hock lesions (technopathies) are prevalent husbandry-related diseases in dairy cattle, affecting 40-70% of the population.
• These conditions are linked to inadequate stall and cubicle design in dairy barns, posing significant animal welfare concerns.
• The severity of hock lesions correlates with lameness, other limb disorders, mastitis, and decreased milk yield, impacting both animal well-being and farm productivity.

Purpose:

• To investigate the prevalence and impact of hock lesions in dairy cattle.
• To identify housing factors contributing to hock lesions.
• To evaluate the effectiveness of different bedding materials in mitigating these conditions.

Summary:

• Hock lesions are a widespread issue in dairy cattle, with prevalence rates from 40% to 70%.
• Inadequate housing design is a primary cause, leading to welfare issues and reduced milk production.
• Epidemiological studies indicate that straw-covered manure packs are associated with the lowest lesion prevalence, followed by sand bedding when adequate lying space is provided.

Impact:

• Highlights the critical link between housing design, animal welfare, and dairy production efficiency.
• Provides evidence-based recommendations for improving dairy cattle housing to reduce hock lesions.
• Emphasizes the economic and ethical importance of addressing technopathies in dairy farming.