| 古勇明1，卢 薛1，胥 鹏2，曾 爽2，周 磊2，曾 雷2，李朝兵1.养殖密度、水质和分级对水泥池
鱖鱼苗种培育的影响[J].广东农业科学,2015,42(16):84-83 |
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养殖密度、水质和分级对水泥池
鱖鱼苗种培育的影响 |
| Effects of stocking density，water quality and multi-stagerearing strategy on Siniperca chuatsi fry culture |
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| DOI： |
| 中文关键词: 翘嘴鳜 苗种培育 养殖密度 水质 分级 |
| 英文关键词: Siniperca chuatsi fry culture stocking density water quality multi-stage rearing strategy |
| 基金项目:国家科技支撑计划项目（2012BAD25B04）；
佛山市科技创新团队项目（2014IT100122） |
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| 中文摘要: |
| 为研究养殖密度、水质和分级对水泥池鱖苗种培育的影响，以翘嘴鳜鱼苗（体长0.7~1 cm）为对
象，在不同密度下投喂麦瑞加拉鲮进行试验。结果表明：（1）小规格苗种（< 2.5 cm）的放养密度宜在4 000 尾
/m3 左右，大规格苗种（2.5~6.5 cm）的放养密度不宜超过800 尾/m3。（2）养殖水体中氨氮和亚硝酸盐的浓度
均与鳜鱼苗养殖密度成显著正相关，水泥池中进行鳜鱼苗种培育不宜密度过高，密度越高，疾病暴发的风险越
大。（3）分级过筛选取鱖苗体长为2~3、5~6、8~9 cm 时的3 个节点进行，保持饱食投喂，能较好地提高鳜鱼
苗种的整齐度，降低残食率，提高成活率。 |
| 英文摘要: |
| To study the effects of stocking density，water quality and multi-stage rearing strategy on fry culture of
Siniperca chuatsi in concrete tanks，different stocking densities and three stage rearing were designed in the experiment
and the water quality was detected. S. chuatsi was fed with live fry of Cirrhinus mrigala. The results showed that，
the proper stocking density of S. chuatsi fry at small size（< 2.5 cm）was 4 000 individuals/m3，while no more than
800 individuals/m3 at a larger size（2.5-6.5 cm）. There was a positive relationship between the concentrations of
NH4
+-N，NO2
--N and the stocking density. The higher was the stocking density of fry culture of S. chuatsi，the more
diseases came up. The difference of body size became wider when the fry grew to 2-3 cm，5-6 cm，8-9 cm. Three-stage
rearing could effectively increase fry size uniformity and improve the survival rate significantly |
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