A. Maharajan, B.S. Vijaykumar,
Comparative Evaluation of Penaeus monodon (Fabricius, 1798) Culture in Different Saline Grow-Out Systems in India,
Journal of Fisheries International,
Volume 8,Issue 2,
2013,
Pages 31-40,
ISSN 1817-3381,
jfish.2013.31.40,
(https://makhillpublications.co/view-article.php?doi=jfish.2013.31.40)
Abstract: Present study was conducted for a period of 156 days (February
to July, 2010) in three earthen ponds of each 10000 m2 area in different
salinities. P. monodon seeds were stocked at a density of 15 nos m-2
in all the ponds. The water quality parameters, such as temperature, salinity,
hydrogen ion concentration (pH), dissolved oxygen and alkalinity were monitored.
The alkalinity at pond 1-3 showed a significantly value (60-130, 180-230 and
220-260 ppm) at 86 DOC. The pond 2 showed higher survival rate than that of
pond 1 and 3. The survival at the time of harvest was 86.6% for pond 1, 95.6%
for pond 2 and 72.6% for pond 3 at 142, 114 and 156 DOC, respectively. The Average
Body Weight (ABW) gained during the 114 DOC was 33.16±0.83, 23.44±0.62
and 17.83±0.28 g for pond 2, 1 and 3, respectively. The Average Daily
Growth (ADG) at the time of harvest was 0.23 g for pond 1, 0.29 g for pond 2
and 0.17 g for pond 3 at 142, 114 and 156 DOC, respectively. Among the ponds,
Feed Conversion Ratio (FCR) was found to be lower in pond 2, followed by pond
1 and 3. A similar trend was observed for Specific Growth Rate (SGR), also in
which pond 2 showed 37% higher SGR than pond 3 and 29.31% higher than pond 1.
Pond 2 obtained higher harvested biomass of shrimps at lesser DOC (4928 kg in
114 DOC) than pond 1 (4390 kg in 142 DOC) and pond 3 (3150 kg in 156 DOC). The
Revenue Over Investment (ROI) was maximum for pond 2 (99%), followed by a moderate
ROI at pond 1 (60%) and the least was for pond 3 (10%), respectively.
Keywords: Penaeus monodon;salinity;water quality;growth;cost analysis