Abstract
Neural structures containing gonadotropin‐releasing hormone (GnRH) in the bovine brain and infundibulum were characterized by light microscopic immunohistochemistry. GnRH‐positive perikarya were localized singly or in small groups within the infundibular nucleus and were seen grouped in large discrete clusters within the ventromedial nucleus. Positive axons were localized within the brain from the nucleus of the rostral commissure to the medial mammillary nuclei, and in specific areas of the infundibulum and infundibular stalk.