EN
The aim of this study was to investigate the presence of leptin in healthy goose (Anser anser) (n=7) preen glands by using immunohistochemical methods. Cytoplasmic leptin immunostaining was detected in the sebaceous zone, in intermediate cells adjacent to germinative cells, in degenerative cells, and in secretion in the apical region of the glycogen zone. A strong leptin expression in the glycogen zone where an intense PAS and nonspecific esterase reactions are present may indicate that this hormone could act as a regulator for fatty acid homeostasis.