| 基于循环水养殖系统的长鳍吻鮈亲鱼培育、催产和孵化技术初探 |
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| 引用本文： | 杨德国,何勇凤,吴兴兵,朱永久.基于循环水养殖系统的长鳍吻鮈亲鱼培育、催产和孵化技术初探[J].淡水渔业,2018(3):101-106. |
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| 作者姓名： | 杨德国 何勇凤 吴兴兵 朱永久 |
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| 作者单位： | 中国水产科学研究院长江水产研究所,农业部淡水生物多样性保护重点实验室,武汉430223 |
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| 基金项目： | 中国长江三峡集团公司项目(0799521)，现代农业人才支撑计划(2130106) |
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| 摘 要： | 2012—2015年,采用室内循环水养殖系统开展了长鳍吻鮈(Rhinogobio ventralis)亲鱼培育、人工催产和孵化技术研究。结果显示:3年间长鳍吻鮈均能在循环水养殖系统中培育成熟,2014年5月—2015年4月间培育存活率和成熟率最高,分别为85.3%~100%和77.3%~100%;对培育成熟的亲鱼进行了4种不同外源激素(PG、HCG、LRH-A2、LRH-A2+DOM)催产实验,结果为LRH-A26μg/kg+DOM 5 mg/kg合剂催产率最高,达88.3%;14、16、18、20和22℃5个温度组的受精卵孵化实验结果显示,孵化时间(H)与温度(T)呈显著负相关关系(H=0.573T2-30.393T+418.178,R2=0.982,P0.01),18℃和20℃组的孵化率分别为54.27%和56.07%,显著高于其他各组,表明长鳍吻受精卵适宜孵化温度范围为18~20℃。
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| 关 键 词： | 长鳍吻鮈(Rhinogobioventralis) 封闭循环水 亲鱼培育 人工催产 孵化 Rhinogobio ventralis recirculating aquaculture system broodstock culture induced spawning artificial in-cubation |
Study on broodstock culture,induced spawning and artificial incubation of Rhinogobio ventralis (Sauvage et Dabry) in recirculating aquaculture system |
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| YANG De-guo,HE Yong-feng,WU Xing-bing,ZHU Yong-jiu.Study on broodstock culture,induced spawning and artificial incubation of Rhinogobio ventralis (Sauvage et Dabry) in recirculating aquaculture system[J].Freshwater Fisheries,2018(3):101-106. |
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| Authors: | YANG De-guo HE Yong-feng WU Xing-bing ZHU Yong-jiu |
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| Abstract: | Broodstock culture, induced spawning and artificial incubation of Rhinogobio ventralis were studied in recircu-lating aquaculture system from 2012 to 2015.The results showed that the R.ventralis being cultured in recirculating aquacul-ture system could reach sexual maturity.The highest survival and maturity rate being observed during May 2014 to Apr.2015 were 85.3% ~100% and 77.3% ~100%, respectively.The testing group of LRH-A26 μg/kg +DOM 5 mg/kg was the best with the highest induced spawning rate 88.3% among four different treatments with different exogenous hor-mones and their combination (PG,HCG, LRH - A2, LRH - A2+ DOM) in the induced spawning experiment of R.ventralis.The effect of different water temperature (14, 16, 18, 20 and 22 ℃) on artificial incubation showed that there was a very significant negative correlation between hatching time (H) and water temperature (T) (H=0.573 T2-30.393 T+418.178, R2=0.982, P<0.01).The hatching rates at 18 ℃ and 20 ℃ were 54.27% and 56.07%, re-spectively, which were significantly higher than other temperature groups.It indicated that the optimal temperature range for artificial incubation of fertilized eggs was from 18 ℃ to 20 ℃. |
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