Preliminary studies on the broodstock maturation of Litopenaeus vannamei from low-salinity farming ponds
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1. Shanghai Ocean University, Shanghai 201306, China;2. Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China;3. Qingdao Higene Aquabreeding Technology CO., LTD, Qingdao 266071, China

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S968.2

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    Abstract:

    from low-salinity water farming ponds were carried out in laboratory. The prawns were reared under different salinities of 1, 8, 15, 23, and 30. Female unilateral eyestalks were sheared to promote maturation. The water temperature for the male shrimps was set at (27±0.5). The sexual development, spawning, fertilization, and hatching rates of the parents were investigated. The female gonads matured in all five salinity conditions; the proportion of mature females in salinity 1 was <10%; in salinities 8 and 15 it was 70%, with low fertilization and no nauplius; and it was >76% in salinities 23 and 30, with low hatching rates. Histological examination revealed that ovarian development did not differ among the 8−30 salinity conditions. The male gonads also matured normally, but the speed of sexual development in salinities 23 and 30 was significantly faster than that in salinities 8 and 15(<0.05). As salinity decreased, the time required for male shrimp maturation increased. The spermatophores were fertilized and nauplius hatched in all salinities.

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杜学芳,孔杰,罗坤,王浩,张瑞标,王清印,许圣钰. 利用低盐度养殖的凡纳滨对虾培育亲虾初探[J]. Jounal of Fishery Sciences of China, 2013,[volume_no](5):982-989

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  • Online: September 26,2013
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