RT Journal
T1 FIRST PACIFIC WHITE SHRIMP, LITOPENAEUS VANNAMEI (BOONE, 1931) CULTURE IN PAKISTAN: EVALUATION OF OPTIMUM SALINITY LEVEL FOR THE GROWTH PERFORMANCE AND SURVIVAL IN THE HYPO SALINE AND HYPER SALINE CONDITION UNDER POND ECOSYSTEM
A1 Habib Ul Hassan
A1 K. Gabol
A1 J. Wattoo
A1 A. M. Chatta
A1 Q. M. Ali
A1 K. Mahmood
A1 M. Hussain
A1 N.A.Abro
A1 M. Attaullah
A1 S. U. Rahman
A1 A. Rashid
A1 M. A. Rahman
A1 M. Y. Hossain
JF Journal of Animal and Plant Sciences
JO JAPS
SN 1018-7081
VO 31
IS 5
SP 1492
OP 1500
YR 2021
FD 2021/08/07
DO DOI https://doi.org/10.36899/JAPS.2021.5.0351
AB <p>The present study was conducted in the coastal pond ecosystems of Pakistan to evaluate the optimum salinity level for the best growth performance of a commercial shrimp,&nbsp;<em>Litopenaeus vannamei</em>. Total of 6 lac seed was randomly distributed in three ponds with an average initial body weight of 0.1&plusmn;0.01 g. The shrimps were cultivated in three different ponds demarcated as pond 1, pond 2 and pond 3 with salinity levels of 8 ppt, 22 ppt and 42 ppt, respectively for 105 days. The pacific white shrimpwere fed with 35.0% crude protein diet with feeding frequency of 4 and initially feeding rate of 10% biomass per day. The feeding rate adjusted according to shrimp biomass on a weekly basis. Final weight, specific growth rate, average daily weight gain, viscerosomatic index, hepatosomatic index and survival rates were found optimum at salinity level of 22 ppt compared with salinity levels of 8 ppt and 42 ppt (<em>p</em>&nbsp;&lt;0.05). FCR was better at 22 ppt salinity compared with two other tested salinity levels (<em>p</em>&nbsp;&lt;0.05). The 22 ppt salinity level resulted in optimum growth of&nbsp;<em>L. vannamei</em>&nbsp;which might be due to improved osmoregulation. Feeding frequency of 4, protein 35% and salinity of 22 ppt were found suitable factors for the growth performance of&nbsp;<em>L. vannamei</em><em>&nbsp;reared in aquaculture system</em>.</p>
K1 Litopenaeus vannamei, salinity, growth, survival rate, aquaculture
PB Pakistan Agricultural Scientists Forum
LK https://thejaps.org.pk/AbstractView.aspx?mid=Fish-20-0009