The specific activity of trypsin demonstrated an exponential increase
more than 2-fold in all experimental groups to 21 DAH. After
this date, this activity slightly declined until the end of the experiment.
The highest specific activity of trypsinwas determined in Exp. 2
group as 142.7±13.2 mU/mg protein−1 (Fig. 2). Trypsin activity was
significantly higher in Exp. 2 and Exp. 1 compared to Exp. 3 and
control group (pb0.05), however no differences were found between
Exp. 3 and control group (pN0.05).
Amylase specific activity slowly increased to 14 DAH and then
slightly decreased until the end of the experiment. The highest specific
activity of this enzyme was found at 14 DAH in Exp. 2 group as
234.2±23.8 mU/mg protein−1 (Fig. 2). The specific activity of amylase
in Exp.1 and Exp. 2 larvaewas significantly different among Exp. 3 and
control (pN0.05), although there were no differences between these
groups (pN0.05).
Lipase specific activity showed similar pattern for amylase, sudden
increase was observed to 21 DAH, followed by slight decline until the
end of the experiment. The peak of lipase activity was measured
in Exp. 2 group on day 21 as 441.3±28.2 mU/mg protein−1 (Fig. 2).
Specific activity in Exp. 2 and Exp. 1 was significantly higher than Exp.
3 and control group (pb0.05), but there were no differences between
the latter groups (pN0.05).
Specific activities of intestinal enzymes, AP and leu-ala peptidase,
demonstrated opposite pattern among the experimental groups.
Until the third week, AP specific activities fluctuated insignificantly
in all experimental groups (pN0.05), however, sharp increases were
measured significantly in Exp. 1 and Exp. 2 at 28 DAH (pb0.05) and
continued to the end of the experiments. The highest specific activity
of APwas determined on day 35 in Exp. 2 group as 622.6±69.7 mU/mg
protein−1 (Fig. 3).
In contrast to APactivity, at the beginning of the experiments specific
activity of leu-ala peptidase was relatively higher during the first two
weeks, but after this date it slightly declined consecutively in all
experimental groups. Especially, sharp decreases were measured after
21 DAH synchronously with increase in AP activity. At the end of the
experiment, leu-ala enzymatic activities in Exp. 1 and Exp. 2 was were
significantly higher than Exp. 3 and control groups (pb0.05), although
therewere no differences between the latter groups (pN0.05). The peak
of leu-ala peptidase activity was measured in Exp. 2 group on day 7 as
544.2±49.7 mU/mg protein−1 (Fig. 3).