Department of Aquaculture, ICAR-Central Institute of Freshwater Aquaculture, Regional Research Centre, Karnataka, India
Research Article
Evaluation of Acid-Insoluble Ash and Crude Fibre as Internal Markers in In Vivo Digestibility Studies: A Comparison in Three Cyprinid Species
Author(s): Gangadhar Barlaya* and Perar Keshavanath
Though there are several reports of estimation of apparent nutrient digestibility values using different markers in fish nutritional studies, no study is available wherein the same nutrient digestibility was estimated using two or more markers. The study aimed at comparing the apparent Digestibility Coefficient (ADC) of nutrients, estimated using the markers-Acid-Insoluble Ash (AIA) and Crude Fibre (CF), in order to assess the suitability of digestibility markers. The apparent crude protein and fat digestibility values of experimental diets estimated in three indoor in vivo digestibility studies with cyprinids (Labeo fimbriatus, L. rohita and Hypselobabus pulchellus) using AIA and CF are compared. In these studies, graded dietary levels of cottonseed meal, azolla meal and moringa leaf meal, respectively were evaluated. Apparent dig.. View more»