文章摘要
何青松,徐大勇,黄志秋,董艳珍*.微囊饲料替代水蚯蚓对短须裂腹鱼仔鱼生长和存活的影响[J].西昌学院学报(自然科学版),2019,(4):12-15.
微囊饲料替代水蚯蚓对短须裂腹鱼仔鱼生长和存活的影响
Effect of Microencapsulated Feed as Substitute for Tubifex on Growth andSurvival Rate of Larval Schizothorax Wangchiachii
  
DOI:
中文关键词: 短须裂腹鱼  仔鱼  微囊饲料  替代  水蚯蚓
英文关键词: Schizothorax wangchiachii  larvae  microencapsulated feed  substitute feed  tubifex
基金项目:凉山州科学技术与知识产权局项目(17NYCX0015);西昌市教育科学知识技术局项目(14JSY10);2017年国家级大学生创新创业项目(教高司函〔2017〕7号)。
作者单位
何青松,徐大勇,黄志秋,董艳珍* 西昌学院动物科学学院四川 西昌 615013 
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中文摘要:
      以初始体质量为(15.5±1.65)mg的7日龄短须裂腹鱼仔鱼为试验对象,用微囊饲料对水蚯蚓的不同替代水平(0%、25%、 50%、75%、100%)投喂28 d,通过测定全长、体质量、特定生长率、存活率来分析微囊饲料替代水蚯蚓对短须裂腹鱼仔鱼生长存 活的影响。结果表明:微囊饲料替代水蚯蚓下特定生长率由高到低依次为0%替代组(5.73±0.08)>25%替代组(4.80±0.28)> 50%替代组(4.67±0.28)>75%替代组(4.18±0.51)>100%替代组(3.13±0.20);存活率由高到低依次为75%替代水平组(77.83± 6.11%)>50%替代水平组(76.50±4.35%)>25%替代水平组(71.33±4.01%)>100%替代水平组(70.00±3.96%)>0%替代水平组 (64.00±6.61%)。综合分析,微囊饲料部分替代水蚯蚓在短须裂腹鱼培育中是苗种可行的,并且25%~50%的替代水平可以保 持较快的生长和较高的成活率。
英文摘要:
      Seven-day-old larvae of Schizothorax wangchiachii with average body weight of(15.5±1.65)mg were randomly divided into five treatments with tubifex’s microencapsulated feed substitute at levels of 0% (0% MF) , 25% (25% MF) , 50% (50% MF) , 75% (75% MF) and 100% (100% MF) to examine the effects of the substitute feed (MF) on the growth, survival rate of larval Schizothorax wangchiachii through determination of its total length, body weight, specific growth rate ( SGR) and survival rate. The results showed that the descending order of specific growth rate in five different substitute levels was expressed as 0% MF(5.73± 0.08)>25% MF(4.80± 0.28)>50% MF (4.67±0.28)>75% MF(4.18±0.51)>100% MF(3.13±0.20)and the descending order of survival rate in five different substitute levels was expressed as 75% MF(77.83±6.11%)>50% MF(76.50±4.35%)>25% MF(71.33± 4.01%)>100% MF(70.00±3.96%)>0% MF(64.00±6.61%). Comprehensive analysis shows that it is feasible to partially substitute microencapsulated feed for ubifex in the breeding of Schizothorax wangchiachii, and 25%-50% of the substitution level can guarantee faster growth and higher survival rate.
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