Breeding and Aquaculture of Acrossocheilius hemispinus
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摘要: 利用从南平、龙岩地区相关水域采集的野生半刺厚唇鱼Acrossocheilius hemispinus开展亲本培育、人工繁育及苗种生长特性研究。结果表明：野生半刺厚唇鱼在土池和水泥池人工饲养条件下均能培育至性腺发育成熟，土池培育效果更佳；2015~2016年对培育的亲鱼采用人工催产、挤卵和授精方法获得受精卵，雌鱼平均催产率78.9%，平均受精率74.8%，平均孵化率73.7%；受精卵适宜孵化方式为流水孵化和充气孵化，或流水结合充气孵化；仔鱼经过39~51 d的培育，平均全长可达3 cm以上，苗种培育成活率为70.9%；对6~30日龄的仔、稚、幼鱼生长情况进行了测定，全长（YL）与日龄（X）、体重（YH）与日龄（X）均呈指数函数关系，全长（YL）与体重（YH）呈幂函数关系，关系式分别为YL=1.4605e0.0271x（R2=0.9982）、YH=0.0217e0.0967x（R2=0.9876）和YL=0.0059YH3.4886（R2=0.9868）。Abstract: The broodstock rearing, artificial breeding and growth characteristics of wild-caught Acrossocheilius hemispinus from waters in Nanping and Longyan areas in the province were studied. During the experimentation, the fish grew and developed normally from fertilized eggs to reach sexual maturity either in ponds or in cement pools with artificial feeding. Although, the in-ground pond aquaculture seemed superior to its counterpart. In 2015-2016, fertilized eggs of the fish were obtained by artificially induced spawning, extrusion and insemination with the average spawning, fertilization, and hatching rates of 78.9%, 74.8%, and 73.7%, respectively. Running water, oxygenation, or a combination of running water and oxygenation was conducive to successful egg hatching. The average length of a larva was approximately 3 cm after 39 to 51 d of cultivation. The larval survival rate was 70.9%. The growth curves of the larvae, juvenile, and young A. hemispinus were related to the full-length (YL), day age (X), and weight (YH) of the fish in the exponential functions of YL=1.4605e0.0271x (R2=0.9982), YH=0.0217e0.0967x (R2=0.9876), and YL=0.0059YH3.4886 (R2=0.9868), respectively.
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Key words:
- Acrossocheilius hemispinus /
- breeding /
- hatching /
- growth
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图 3 半刺厚唇鱼幼鱼全长与体重回归曲线
Figure 3. Regression function on body length and weight of A. hemispinus larvae
表 1 2015-2016年半刺厚唇鱼人工繁育情况
Table 1. Artificial breeding of A. hemispinus (2015-2016)
表 2 不同孵化方式对半刺厚唇鱼受精率和孵化率的影响
Table 2. Effect of incubation on fertilization and hatching rates for A. hemispinus
表 3 2015-2016年半刺厚唇鱼苗种培育情况
Table 3. Cultivation of A. hemispinus from fertilized eggs (2015-2016)
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