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Comparison of growth and reproduction performance of broodstock Pacific white shrimp Litopenaeus vannamei reared in oceanic and brackish water
Author(s) -
Tan Jian,
Luan Sheng,
Cao Baoxiang,
Luo Kun,
Meng Xianhong,
Kong Jie
Publication year - 2019
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/are.14075
Subject(s) - broodstock , brackish water , biology , shrimp , fishery , salinity , litopenaeus , zoology , crustacean , aquaculture , ecology , fish <actinopterygii>
This study provides a preliminary evaluation of feasibility of brackish water breeding. Shrimps were initially cultured at brackish water. Shrimps were reared at different stages (5, 6, 7 and 8 months, respectively), and 300 female shrimps were selected from each stage for growth at an enhanced salinity of 30 ppt. When the shrimps were sexually mature, the reproductive characteristics (mating rate, egg number and nauplii number) of the broodstock shrimps, quality of nauplii (malformation rate of nauplii) and quality of postlarvae (survival rate and desalination stress) were tested to evaluate of the effects of brackish water (10 ppt) on these shrimps. Oceanic water (30 ppt) for rearing shrimps was used as control group. Histopathological analysis of gonads and hepatopancreases from oceanic and brackish water shrimp was performed. The results showed that shrimps cultured for a maximum of 8 months in brackish water remained sexually mature. There were no significant differences regarding the quality of shrimps in the oceanic water and brackish water. However, the brackish water cultured shrimps were easily adapted to salinity changes. Our results demonstrate the good feasibility of the present scheme, in which the broodstock shrimps were cultured at a salinity of 10 ppt.