Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Reflections on the role of mechanical influences on foetal movement, and the relationship to arthrogryposis multiplex congenita in calves.

Abstract

Evidence for a mechanical pathogenesis of arthrogryposis was collected from a literature survey, from clinical observations on 113 affected calves and from experimental induction of articular rigidity in a 7-month-old bovine fetus. Predisposing factors were: the male sex, posterior intra-uterine presentation and double muscling. In the absence of major clinico-pathological lesions, limited fetal exercise due to mechanical impediment during a prolonged period of gestation might lead to the formation of multiple articular rigidity particularly affecting the fore limbs.