Piedmontese calf, approximately 20 days old.
In cattle, a congenital weakness of the extensor muscles of the forelimbs (muscle laxity) of probable hereditary origin is described, affecting newborn calves. The lack of muscle tone prevents the calf from maintaining adequate extension of the forelimbs, which give way by flexing into a buckled position. Unlike congenital tendon contractures, in these cases, the limb can reach full extension if assisted. Nevertheless, standing and locomotion can be seriously compromised.
Differential diagnosis: flexor tendon contractures, peripheral nerve lesions, arthritis/arthrosis.
Medical and surgical therapy can be employed with good results.
