Camelidae and Cervidae Congenital Musculoskeletal Defects – NAVLE Study Guide

Overview and Clinical Importance

Congenital musculoskeletal defects are abnormalities of the bones, joints, muscles, and connective tissues present at birth. These conditions are particularly significant in South American camelids (SACs) including llamas and alpacas, where they occur more commonly than in other domestic livestock species. The relatively narrow genetic diversity in North American camelid populations, stemming from limited original stock importation, contributes to the higher prevalence of inherited defects.

In cervids (deer), congenital musculoskeletal abnormalities are less frequently documented in clinical literature, partly due to reduced survival of affected fawns in wild populations. However, understanding these conditions is important for wildlife rehabilitation, zoological medicine, and farmed deer operations.

Etiology of Congenital Defects

The causes of congenital defects in camelids and cervids are multifactorial. Understanding the etiology is essential for prevention and client counseling regarding breeding decisions.