Arthropathy in white-tailed deer and a moose

Area of Science:

• Veterinary Pathology
• Wildlife Health
• Comparative Anatomy

Background:

• Degenerative joint diseases are common in various animal species.
• Understanding skeletal pathologies in wildlife is crucial for population health assessments.
• White-tailed deer (Odocoileus virginianus) and moose (Alces alces) are ecologically significant species.

Purpose of the Study:

• To document and characterize degenerative skeletal lesions in white-tailed deer and moose.
• To investigate the prevalence of specific arthropathies, such as stifle joint involvement and vertebral osteophytes, in relation to age and sex.
• To discuss potential etiologies and the broader significance of these findings in wild cervid populations.

Main Methods:

• Post-mortem examination of skeletal systems from wild white-tailed deer and moose.
• Macroscopic evaluation for degenerative lesions, including arthropathy and osteophytes.
• Data collection stratified by species, age, and sex for prevalence analysis.

Main Results:

• Degenerative lesions were observed in a significant proportion of examined white-tailed deer (20-128 individuals) and a moose.
• Stifle joint arthropathy was prevalent in 60% of male deer aged 4+ years versus 16.7% in females of the same age group.
• Vertebral osteophytes were absent in female deer and younger males (<6 years), but present in 50% of males aged 6+ years.

Conclusions:

• Age and sex are significant factors in the development of degenerative joint disease in white-tailed deer.
• Findings suggest a higher susceptibility to stifle joint arthropathy and vertebral osteophytes in older male deer.
• The study highlights the importance of considering age-related degenerative conditions in wildlife health surveillance.