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- W979977071 abstract "采用单因子实验设计方法,进行饲料中添加锌对花鲈幼鱼生长(增重率、存活率、特定生长率和饲料效率)、免疫反应(血清溶菌酶活性和总补体活性)和组织中锌积累量影响的研究。通过在基础饲料中添加ZnS04使饲料中锌含量分别达到83.3、95.2、101.6、120.3、159.9mg/kg,对花鲈幼鱼进行为期8周的生长实验,每个水平3个重复,每个养殖单元放养初始体重为(10.0±0.58)g左右的花鲈幼鱼20尾。饲养实验在海水网箱(1.5×1.0×1.0m^2)中进行,实验期间水温为26.5—32.5℃,盐度为28—29,溶解氧含量在6mg/L左右。结果表明,各饲料组成活率(95.00%-100.00%)无显著性差异(P〉0.05)。随着饲料中锌含量从83.3mg/kg增加到101.6mg/kg,花鲈幼鱼的增重率和特定生长率显著升高(P〈0.05),而饲料中锌含量达到101.6mg/kg之后,其增重率和特定生长率变化不显著(P〉0.05);以增重率和特定生长率为指标,花鲈幼鱼最佳生长性能的饲料锌含量为103.4mg/kg左右。各饲料组肌肉中锌积累量无显著性差异;随着饲料中锌含量从83.3mg/kg增加到101.6mg/kg,花鲈幼鱼肝脏中锌积累量显著增加(P〈0.05),而饲料中锌含量达到101.6mg/kg之后,其肝脏中锌积累量变化不显著(P〉0.05);花鲈幼鱼获得肝脏中最大锌积累量时饲料中锌最低含量为105.1mg/kg。随着饲料中锌含量从83.3mg/kg增加到101.6mg/kg,花鲈幼鱼血清溶菌酶和总补体活性显著升高(P〈0.05),饲料中锌含量达到101.6mg/kg之后,血清溶菌酶和总补体活性变化不显著(P〉0.05)。综上所述,花鲈幼鱼生长和免疫的锌适宜添加量为105.1mg/kg左右。" @default.
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- W979977071 date "2009-01-01" @default.
- W979977071 modified "2023-09-23" @default.
- W979977071 title "饲料中锌对花鲈(Lateolabrax japonicus)幼鱼生长、免疫和组织积累的影响" @default.
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