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Integumental Structure in a Friesian Calf with Congenital Hypo-or Atriehosis Combined with Prognathia Inferior
Wilfried Meyer1, Klaus Neurand2, Kerstin Müller3
1Institute for Zoology, Veterinary School, Hannover, Germany.
Abstract:
Abstract- The integumental structure in a Friesian calf with congenital hypo-or atrichosis and prognathia is described. The most important feature was the presence of primary hair follicles with full glandular complements but without the hair forming parts (hair bulb with matrix). Résumé- La structure du tégument d'un veau Frison atteinte d'une hypoou atrichose et d'un prognatisme est décrite. La principale caractéristique est l'existance de follicules pileux primaires possédant l'ensemble des glandes annexes, mais dépourvus de partie productrice de poil (bulbe avec matrice). Zusammenfassung- Die Arbeit beschreibt die Hautstruktur eines Schwarzbunte-Kalbes mit Hypo-oder Atrichosis, die mit Prognathia inferior gekoppelt ist. Als wichtigste Beobachtung fällt auf, daß die vorhandenen Primärhaarfollikel die voile Ausstattung mit beiden Drüsentypen zeigen, der gesamte proximale Follikelanteil, der das eigentliche Haar bildet (Haarbulbus mit Haarmatrix), jedoch fehlt. Resumen Se describe la estructura integumentaria de un ternero frisón que padecía hipo/atricosis acom-pañada de prognosis mandibular. La característica relevante fué la presencia folículosos primarios junto con anexos glandulares completos, pero careciendo de las partes formadoras del pelo (bulbo piloso y matríz).
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