Journalartikel

Jahr der Veröffentlichung: 1991

Seiten: 7-17

Zeitschrift: Journal of Animal Physiology and Animal Nutrition

ISSN: 0931-2439

Verlag: Wiley

Abstract: 
The review starts from embryological events common to all domestic mammals and initial diversion during gut rotation which focuses in ungulates on caecum and colon ascendens. Extremes of gross anatomical hindgut differentiation are dog and horse: elongation, distension, increased capacity and formation of taenia, haustra and semilunar folds as well as sectional bottle necks characterise equine fermentation chambers with back stopping and back flow meachanisms. Pig and ruminants show a similar development of caecum and proximal parts of the ascending colon into fermentation chambers followed by constrictions and spiralised sections. The blood vascular system of the specialised gut sections is extended accordingly. The microscopic structure, especially the mucosa shows numerous species and adaptive variations especially in the fermentation sections of the caeco-colon, in ruminants indicative of feeding types. Ultrastructural differentiation relates to absorption, transcellular and paracellular transport and to secretion and the luminal mucin layer. The large intestine especially of the domestic ungulates is distinguished by its plasticity and (limited) structural adaptability based on nutritional processes.

Harvard-Zitierstil: HOFMANN, R. (1991) THE COMPARATIVE MORPHOLOGY AND THE FUNCTIONAL ADAPTIVE DIFFERENTIATION OF THE LARGE-INTESTINE OF THE DOMESTIC MAMMALS, Journal of Animal Physiology and Animal Nutrition, pp. 7-17

APA-Zitierstil: HOFMANN, R. (1991). THE COMPARATIVE MORPHOLOGY AND THE FUNCTIONAL ADAPTIVE DIFFERENTIATION OF THE LARGE-INTESTINE OF THE DOMESTIC MAMMALS. Journal of Animal Physiology and Animal Nutrition, 7-17.