[Diagnosis of osteopathy in cattle using bone biopsy]

Area of Science:

• Veterinary Medicine
• Biochemistry
• Radiology

Context:

• Metabolic bone diseases are a significant concern in dairy cattle production.
• Bone biopsies are crucial for diagnosing conditions like osteoporosis and osteomalacia.

Purpose:

• To evaluate the prevalence of osteoporosis and osteomalacia in dairy cows using biochemical analysis.
• To compare the diagnostic efficacy of biochemical analysis versus radiography for metabolic osteopathies.

Summary:

• Biochemical analysis of bone biopsies from 70 cows showed osteoporosis in 87%, osteomalacia in 57%, and combined forms in 51.4%.
• Pathological findings were most frequent in cows post-calving.
• Calcium and phosphorus imbalances were prevalent, with only 5.7% showing physiological ratios.
• Radiography identified 23% fewer pathological cases compared to biochemical analysis.

Impact:

• Highlights the high prevalence of metabolic bone diseases in dairy cows.
• Suggests radiography can serve as an effective screening method for metabolic osteopathies in cattle.
• Informs management practices to address mineral imbalances and bone health in dairy herds.