Ammonia-N excretion and body biochemistry compositions in Pelteobagrus vachelli during starvation
Ammonia-N excretion rate and body biochemistry composition of Pelteobagrus vachelli were measured during starvation.Ammonia-N excretion rate increased at the beginning period and then decreased in the following starvation days;From the 10th to 20th day,the excretion rate changed insignificantly,then it decreased during the following days.The result of body biochemical composition showed that the content of protein,lipid and ash were 13.56%,21.84% and 2.35% at the beginning;The content of ash increased but the content of protein and lipid decreased.At the median lethal time of starvation,those indexes were 7.14%,4.81%and 3.92%,(respectively.)