摘要
目的:弄清宽体金线蛭(Whitmania pigra)苗期最适饵料。方法:以宽体金线蛭苗(体质量0.1140±0.0424 g)作为研究对象,实验时间为20 d,分别投喂耳萝卜螺(Radix auricularia)(体质量0.1981±0.1113 g)和方形环棱螺(Bellamya quadrata)仔螺(体质量0.0356±0.0181 g),记录蛭苗对两种饵料的摄食数量,体重变化,水质变化等特征。结果:宽体金线蛭苗会积极采食萝卜螺和方形环棱螺仔螺,方形环棱螺仔螺组几乎无残饵,但萝卜螺组残饵较多;萝卜螺组体质量是方形环棱螺仔螺组的1.7倍;萝卜螺组饲养6 d内氨氮、亚硝酸盐、硫化物指标在第6天分别达到7.81±2.33 mg/L、2.11±0.81 mg/L、0.13±0.03 mg/L,显著高于方形环棱螺仔螺组。结论:萝卜螺和方形环棱螺仔螺两种饵料均是宽体金线蛭苗适口饵料,萝卜螺作为饵料生长速度更快,但残饵较多,水质容易败坏。
Objective:To find out the optimum bait of Whitmania pigra larvea.Methods:Whitmania pigra larvea(0.1140±0.0424 g)was fed with Radix auricularia(0.1981±0.1113 g)and Bellamya quadrata larvea(0.0356±0.0181 g)for 20 d,the ingestion quantity and Changes of weight gain of Whitmania pigra larvea and water quality of aquarium were recorded.Results:Whitmania pigra consumed Radix auricularia and larvea of Bellamya quadrata initiatively.There was almost no residual bait in Bellamya quadrata larvea group,but the group feeding with Radix auricularia leaved many residues.The mass of Radix auricularia group was 1.7 times than Bellamya quadrata group.The ammonia nitrogen,nitrite nitrogen,hydrogensulphide in aquarium which feeding with Radix auricularia 6 d were 7.81±2.33 mg/L,2.11±0.81 mg/L,0.13±0.03 mg/L respectively,of which significantly higher than the group feeding with Bellamya quadrata.Conclusion:Radix auricularia and larvea of Bellamya quadrata are the optimum bait of Whitmania pigra larvea.The Whitmania pigra larvea feed with Radix auricularia grow faster than Bellamya quadrata,but more residue may be leaved,and the water is easily spoiled.
作者
王建国
熊良伟
陶桂庆
王权
侯君
杨茂林
黄梁军
WANG Jian-guo;XIONG Liang-wei;TAO Gui-qing;WANG Quan;HOU Jun;YANG Mao-lin;HUANG Liang-jun(Department of Aquatic Science and Technology,Jiangsu Agri-animal Husbandry Vocational College,Taizhou 225300,China;Jingjiang Agriculture Committee Aquatic Guidance Center,Jingjiang 214500,China;Jingjiang Mingxing Leech Sci-tech Co.,Ltd.,Jingjiang 214500,China)
出处
《中药材》
CAS
北大核心
2018年第5期1022-1026,共5页
Journal of Chinese Medicinal Materials
基金
泰州市农业科技支撑项目(TN201604)
江苏省渔业三新工程项目(Y2016-30)
关键词
宽体金线蛭
萝卜螺
方形环棱螺
摄食
Whitmania pigra Whitman
Radix auricularia(Linnaeus)
Bellamya quadrata(Benson)
Ingestion
