9715

• UCREFRP Catalog Number: 9715
• Author: Ward, D.
• Title: Removal and quantification of Asian tapeworm from endangered cyprinid fishes using Praziquantel.
• USFW Year: 2005.
• USFW - Doc Type: Arizona Game and Fish Department.
• Copyright Material: NO

Table 1. Dosages and sizes ofbonytail used in Praziquantel bath treatments.

Praziquantel Dosage Isopropyl Alcohol # of fish Fish size (mm)
(mg/L) (ml) Mean (Range)
0.7 12.5 24 148 (121 - 179)
1.5 25 24 146 (110 -168)
6 100 24 145 (128 -162)
6 100 12 395 (354 - 457)
36 600 24 158 (146 -165)

Table 2. Number of tapeworms inserted and recovered from bonytail at four different dosages
of Praziquantel.
Dosage Tapeworms inserted per fish
(mg/ml) Mean (range)
0.7 3.0 (1 - 8)
1.5 5.6 (2 -13)
6 7.6 (3 - 23)
6 13.2 (2 - 30)
36 2.7 (1 - 6)

Total tapeworms
inserted
74
146
210
93
72

Tapeworms
recovered
30
51
133
2
27

, % that established
in new host
40.5%
34.9%
63.3%
2.2%
37.5%

Table 3. Number offish with live tapeworms and percent of tapeworms removed at four
different dosages ofPraziquantel after 12 hours of treatment in a Praziquantel bath.
% of total tapeworms
remaining
12 hours 30 days
26.7 10.0
13.7 0.0
18.0 0.7
25.9 0.0

DosaQe mQIL

# of fish with live tapeworms following treatment
12 hours 30 days
2 2
2 0
4 1
3 0

0.7
1.5
6
36

Table 4. Number offish with live tapeworms and percent of tapeworms removed at four
different dosages of Praziquantel after 24 hours of treatment in a Praziquantel bath.
% of total tapeworms
remaining
24 hours 30 days
46.7 10.0
0.0 0.0
0.0 0.0
11.1 0.0

DosaCle mClIL

# of fish with live tapeworms following treatment
24 hours 30 days
5 2
o 0
o 0
1 0

0.7
1.5
6
36