TY  - JOUR
T1  - Effects of Artificial Substrates on Growth, Spatial Distribution and Non-  Specific Immunity Factors of Litopenaeus vannamei in the Intensive Culture  Condition
TT  - Effects of Artificial Substrates on Growth, Spatial Distribution and Non-  Specific Immunity Factors of Litopenaeus vannamei in the Intensive Culture  Condition
AU  - Zhang, Bo
AU  - Lin, Wenhui
AU  - Wang, Yajun
AU  - Xu, Runlin
PY  - 2010
DA  - August
JF  - Turkish Journal of Fisheries and Aquatic Sciences
PB  - Trabzon Su Ürünleri Merkez Araştırma Enstitüsü
WT  - DergiPark
SN  - 1303-2712
VL  - 10
IS  - 4
LA  - tr
AB  - In order to investigate the effects of artificial substrates on shrimp growth, spatial distribution and non-specific  immunity factors, such as phenoloxidase (PO), superoxide dismutase (SOD), peroxidase (POD), antibacterial activity (Ua),  lysozyme (Ul) and hemolysin activity, 30-day old Litopenaeus vannamei post-larvae (PL30) were reared intensively for 60  days at a density of 500 shrimp m-2 of water surface area in each of 8 PVC aquaria (1.0×1.0×1.5m, water surface area 1 m-2,  water volume 1000 L). Two aquaria containing no artificial substrate were a control group, and 1, 2 and 3 artificial substrates  were present in other 6 aquaria. Shrimp growth (gain in weight), survival and yield increased significantly (P<0.05) when  more artificial substrates were added. The percentage of shrimp on artificial substrates increased with increasing number of  artificial substrates and rearing time. As for non-specific immunity factors, the activities of PO, Ua, Ul, POD, SOD and  hemolysin of groups with artificial substrates were lower than those of control group significantly (P<0.05). With an  increasing number of artificial substrates, the activities of PO, Ua, Ul, POD and hemolysin reduced, but SOD activity  increased. It was suggested that artificial substrates could alleviate the negative effect of the high stocking density by  providing well living environment for shrimp.
KW  - White shrimp
KW  - high stocking density
KW  - living space
N2  - In order to investigate the effects of artificial substrates on shrimp growth, spatial distribution and non-specific  immunity factors, such as phenoloxidase (PO), superoxide dismutase (SOD), peroxidase (POD), antibacterial activity (Ua),  lysozyme (Ul) and hemolysin activity, 30-day old Litopenaeus vannamei post-larvae (PL30) were reared intensively for 60  days at a density of 500 shrimp m-2 of water surface area in each of 8 PVC aquaria (1.0×1.0×1.5m, water surface area 1 m-2,  water volume 1000 L). Two aquaria containing no artificial substrate were a control group, and 1, 2 and 3 artificial substrates  were present in other 6 aquaria. Shrimp growth (gain in weight), survival and yield increased significantly (P<0.05) when  more artificial substrates were added. The percentage of shrimp on artificial substrates increased with increasing number of  artificial substrates and rearing time. As for non-specific immunity factors, the activities of PO, Ua, Ul, POD, SOD and  hemolysin of groups with artificial substrates were lower than those of control group significantly (P<0.05). With an  increasing number of artificial substrates, the activities of PO, Ua, Ul, POD and hemolysin reduced, but SOD activity  increased. It was suggested that artificial substrates could alleviate the negative effect of the high stocking density by  providing well living environment for shrimp.
UR  - https://dergipark.org.tr/tr/pub/trjfas-ayrildi/issue//160385
L1  - https://dergipark.org.tr/tr/download/article-file/141755
ER  -