Zwyrodnienie włókniste kości u kóz

This article presents the four, fibrous ostheodystrophy cases at a goat farm in northern Poland. This metabolic disorder is an example of secondary nutritional hyperparathyroidism arising from a chronic, persistent consumption of excessive dietary phosphorus. The disease is well known in goats worldwide. The initial symptoms can be nonspecific and include increasing lethargy, difficult swallowing, that is evidence of pharyngeal involvement, weight loss, and a tendency for recumbency. Although all bones may be affected, the mandible and jaw are predisposed to reveal visible defects as first. Clinical lesions can be reversed, but only if they are detected early, through dietary treatment, involving reduction of phosphorus levels and correction of the calcium to phosphorus ratio.