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石斑鱼在亚洲是一种价格昂贵的海珍品,在马来西亚、新加坡、泰国和香港都有网箱养殖,但因苗种供不应求,集约化养殖受到限制,因此,培养各种石斑鱼苗种的试验势在必行。 本文报道在蓄养条件下石斑鱼E.suillus的月产卵周期、产卵量、产卵月龄周期和卵的质量,该品种是东南亚最丰富最重要的品种之一。 一、材料与方法 试验采用野生的鱼,将鱼暂养在一个直径4m的帆布水池或4×4×3m的浮式网箱,每隔一日随意投喂碎鱼。每月任意取样约10％的怀卵鱼,测定性腺成熟度。 取样时获得成熟的卵或观察到自由流动的鱼精液就可确认为成熟的鱼。 取4条成熟的雄鱼(7—12kg)和6条雌鱼(3.5—5.0kg),放入一个4.6×4.6×2m的水泥池(有效水体约40吨)。每周换水3次,换水量约为水体的50—80％,水池用黑色草席遮阴,防止藻类生长。
Grouper is an expensive sea cucumber product in Asia. It has cage culture in Malaysia, Singapore, Thailand and Hong Kong. Due to the short supply of seed, intensive farming is limited. Therefore, the cultivation of various grouper species Test is imperative. This paper reports the monthly oviposition, fecundity, ovipositing age and egg quality of the grouper E.suillus under storage conditions, which is one of the most abundant and important species in Southeast Asia. First, the material and methods The test uses wild fish, the fish temporarily housed in a 4m diameter canvas pool or 4 × 4 × 3m floating cages, feeding fish every day. About 10% of the pregnant females were randomly sampled every month to determine gonadal maturity. Acquired mature eggs or observed free-flowing fish semen can be identified as mature fish. Four mature males (7-12 kg) and six females (3.5-5.0 kg) were taken and placed in a 4.6 x 4.6 x 2 m cement pool (approximately 40 tonnes of effective water). Changing the water three times a week, changing the water volume is about 50-80% of the water, the pool shade with black straw mat to prevent the growth of algae.