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Fig. 3. Fluxes of titratable alkalinity (JTAlk, grey bars),
total ammonia (JTamm, white bars) and net acidic
equivalents (JnetH+ black bars) over a 72 h
period after fish were fed a 1% of body mass ration via an
oesophageal catheter. Positive values indicate base excretion and negative
values indicate acid excretion. Values are means ± s.e.m.
(N=8–11). An asterisk denotes a significant difference when
compared with pre-feed levels [adjusted P<0.05; RM-ANOVA followed
by a multiple pairwise control (pre-feed) comparisons versus post-feed groups
using the Bonferroni t-test method], whereas a dagger indicates a
significant difference of
JTAlk or
JTamm when compared with voluntarily fed fish
(P<0.05; paired t-test).