ABSTRACT
The clinical signs associated with trace ele-ment deciency in sheep are often insidious in onset and usually present as poorly grown lambs during late summer/early autumn with few specic clinical features (Fig. 14.1). There is considerable interplay between chronic parasitism, malnutrition and trace element deciencies such that it may not be possible, or desirable, to ascertain which is the most important condition (Fig. 14.2). The problem of diagnosing trace element deciency is further compounded when purchased sheep are presented as poorly grown.
