Description:
This study provides meaningfully scientific
information on the attempt to accelerate the gonad
rematuration of snakehead (Channa striata) to support the
quality seed production for both commercial and
restocking purposes in South Kalimantan, Indonesia. A
total of 48 snakehead fish broods (296-312 mm total
length and 234-298 g weight) were subjected to different
treatment levels using oodev dose of 0.5 ml kg-1 fish weight
to determine the best frequency and time period for gonad
rematuration after spawning. Treatment-A: 3 times/9 days,
B: 2 times/6 days, C: 1 time/3 days, and D: no oodev
injection (control). The 12 hapas were used comprising 4
individuals per hapa (0.40.41 m) under the controlled
condition. After all, ten snakehead brood samples were
dissected to find out the gonad maturity level of fish. The
treatment-A showed the best performance in term of mean
fecundity (19600±450.00 granules/individuals), egg
diameter (1.10±0.15 mm), and gonad somatic index/GSI
(3.41±0.90 %) among other treatments. Dealing with
hepatosomatic index (HSI), the treatment-C was
significantly higher than treatment-A and D, but not differ
from treatment-B. The mean HSI was varied from
0.89±0.03 % to 1.53±0.23 %. Temperature, pH and DO
during sampling period are considered comfortable for
snakehead fish broods.
Keywords— Channastriata, gonad rematuration,
fecundity, egg diameter, GSI, HSI