Fibre intake and faeces quality in leaf-eating primates

摘要: A high incidence of gastrointestinal disorders as diarrhea, phytobezoars, bloated conditions and weight loss have been observed in captive langurs. This thesis focuses on the effect food intake langurs relation to quality faeces its implications for kept captivity. According literature colobines a compartmentalized stomach which is fermented. The structure size hindgut suggests that fermentation also can take place there. Comparing digestive tract with ruminants showed lot similarities. Results nutrition questionnaire sent North American European facilities currently there no standardized diet fed Southeast Asian Chemical analyses wild fruits, seeds leaves levels NDF indigestible fibre. Langurs prefer containing carbohydrates are easily digested, but when such not available, consume diets more fibre less digestible carbohydrates. study an improvement stool fiber pellet was Francois (Trachypithecus francoisi) Feeding resulted distinct feeding peaks eating distributed over whole day group Experiments black white colobus (Colobus guereza)and spectacled leaf monkeys obscurus) improved these foregut fermenting primates crude cellulose. In two groups Javan auratus auratus) removal produce from tested. both consisted only browse pellet. Exclusion feeds rich soluble caused increased pellets browse. higher lower dietary water quality. Mean Retention Time (MRT) calculated by analysing amount cobalt-EDTA chromium oxide consumed produced Langurs. No significant differences were found between retention time fluid particle part different diets. After alpha-linolenic acid instead linoleic, clear increase shown content plasma erythrocytes. It indicates polyunsaturated fatty acids hydrogenated stomach. Comparison 11 Dutch zoos consistency depends water, protein content. High intakes associated deteriorated consistency, where quality, langur should dry matter compared free-ranging