卡拉白鱼人工繁育及池塘养殖试验研究

目的]探讨卡拉白鱼在辽宁地区的人工繁殖、苗种培育和池塘养殖技术.方法] 2012年开始在辽宁省铁岭养殖基地进行卡拉白鱼人工繁育及池塘养殖试验.结果]引进卡拉白鱼种鱼400对,催产后人工繁殖的仔鱼经过110 d培育后平均体长达6.65 cm,平均体质量达3.10g;春片经过135 d培育后平均体长达到14.50 cm,平均体质量达到28.50 g.在0.18 hm2池塘投入3龄苗种1.0万尾,经过132 d培育后平均体长达23.80 cm,平均体质量达123.90 g,出塘商品鱼的产量为6 600 kg/hm2,出塘率为96.0％,饵料系数1.8.特定生长率（SGR）和日增重（AWG）在6～8月较高,主要是因为适宜的水温、水质环境和合理的投饲方法,3龄即可达到100 g以上的食用标准.结论]卡拉白鱼在6～8月生长较快.

Artificial Breeding and Pond Cultivation Experiments of Chalcalburnus chalcoides aralensis

Objective] The research aimed to discuss the artificial breeding, seedling cultivation and pond culture technologies of Chalcal-burnus chalcoides aralensis in Liaoning. Method] The artificial breeding and pond culture experiments of C. chalcoides aralensis were conduc-ted in fish farm in Tieling breeding base of Liaoning Province from 2010. Result] 400 pairs of breed fishes of C. chalcoides aralensis were in-troduced. After induced spawning, the average body length of artificially bred C. chalcoides aralensis larvae after culturing 110 days was 6.65cm, and the average body weight reached 3.10 g. The average body length of spring fishes of C. chalcoides aralensis after culturing 135 dreached 14.50 cm and the average body weight reached 28.50 g. 1 0000 third-instar seedlings were laid in 0.18 hm2 and the average bodylength reached 23.80 cm and the average body weight reached 123.90 g. The yield of commercial C. chalcoides aralensis was 6 600 kg/hm2,the pond output rate was 96.0% and the feed conversion ratio was 1.8. The specific grow rate （SGR） and average weight gain （AWG） werehigher from June to August because of suitable water temperature, water quality environment and reasonable feeding method. 3-instar C. chal-coides aralensis could reach the cooking standards of more than 100 g. Conclusion] C. chalcoides aralensis grew faster from June to August.