宽体金线蛭选育群体生产性状的选择效应  

Preliminary Evaluation for the Production Traits of Mass Selective Breeding Population of Whitmania pigra

作　　者：熊良伟[1] 王建国[1] 王帅兵[1] 王权[1] 吴云菲 陶桂庆 侯君 

机构地区：[1]江苏农牧科技职业学院水产科技系,江苏泰州225300 [2]靖江市明星水蛭科技有限公司,江苏靖江214500

出　　处：《中药材》2017年第6期1249-1252,共4页Journal of Chinese Medicinal Materials

基　　金：江苏省渔业三新工程(Y2016-30);泰州市农业科技项目(TN201604);江苏农牧科技职业学院科研项目(NSF201510-1)

摘　　要：目的:为选育经济性状优良的宽体金线蛭新品种。方法:以江苏里下河地区野生宽体金线蛭为材料,以生长速度为指标,选择个体体重18.00 g以上构建宽体金线蛭选育群体,比较选育群体与普通群体繁殖及F1代养殖生产性状。结果:选育群体每10㎏亲蛭产茧1.81㎏,较普通群体提高了63.04%,卵茧规格较普通群体明显增大(P<0.01),亲蛭体重下降率及卵茧平均出苗率选育群体与普通群体无明显变化(P>0.05);选育群体F1养殖产量、均重及成活率较普通群体分别提高了55.69%、17.18%和33.17%,差异极显著,特定生长率及增重率明显高于普通群体(P<0.01),而干物质比2个群体F1代差异不显著(P>0.05)。结论:通过群体选育可以有效提高宽体金线蛭繁殖和养殖性能。Objective：To breed new Whitmania pigra varieties with best commercial traits.Methods：The wild Whitmania pigra population was captured in Lixia river area in Jiangsu province was used as material,a mass selection-brccding process was performed,the growth traits were used as the selection index.individual weight of 18 g or above were selected to construct a Whitmania pigra breeding population,the breeding characteristics of breeding population,common population and F1 generation reproduction were compared.Results：Compared with common wild Whitmania pigra breeding population under the same condition,the weight of laid cocoons of the Whitmania pigra breeding population was 1.81 kg per 10 kg and improved by 63.04%.The standard of cocoons was significantly increased than that in the common population（P 〈 0.01）,but there were no difference in the rate of body weight loss and the total number of hatchlings per cocoon between this two population（P 〉 0.05）.The production,average body weight and survival rate of the F1 generation increased by 55.69%,17.18% and 33.17% compared with the common population,respectively.Compared with the common wild population,these differences were significant（P 〈 0.01）,the specific growth rate and weight gain rate were significantly higher than those of the common population.The proportion of dry matter between the F1 generation of other two population had no significant difference （P 〉 0.05）.Conclusion：The results suggest that selection work can significantly improve the reproduction and breeding performance of Whitmania pigra.

关 键 词：宽体金线蛭 群体选育 繁殖 生长 性状 

分 类 号：R282.2[医药卫生—中药学]