Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 435409
Title The impact of adaptation time on digestibility and faeces characteristics (Oreochromis niloticus l.)
Author(s) Amirkolaie, A.K.; Schrama, J.W.
Event International conference on Global Aquaculture “Securing our future” AQUA 2012, Prague, Czech Republic, 2012-09-01/2012-09-05
Department(s) Aquaculture and Fisheries
WIAS
Publication type Abstract in scientific journal or proceedings
Publication year 2012
Abstract Fish may need a time to adapt to experimental diets when digestibility and /or faeces characteristics are being measured. The main goal of this study is to investigate the influence of adaptation time on the digestibility and faeces recovery in diets contained two types and levels of starch. Four experimental diets were formulated using two types (raw and gelatinized) and levels (20 and 40%) of maize starch. After 2-wk adaptation, faeces was collected during a 5-wk period. The apparent digestibility (ADC) measurements and the faeces recovery were estimated using settling tanks in the current study. ADC measurements increased significantly for all diets by the end of the experiment (P <0.05). However, the impact of adaptation time on ADC values is highly related to the type of the diet. Faeces recovery did not change over the experimental period (p > 0.05), except for 40% gelatinized diet. Total faeces production reduced gradually up to the final week of measurement for the tested diets (P
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