钙、镁、铁、锌对蜜蜂生存活力的影响

Ca,Mg,Fe and Zn Affect the Survivability of Honey Bees(Apis mellifera ligustica)

研究蔗糖中不同Ca、Mg、Fe和Zn浓度对蜜蜂生存活力的影响,为蜜蜂越冬期间对4种矿物质的营养需要量提供一定的参考。Ca、Mg、Fe和Zn分别有11、12、14和15个不同处理水平,通过50%的蔗糖糖浆供给蜜蜂。结果表明:低浓度处理水平下,Ca(0~100 mg/kg)、Mg(50 mg/kg)、Fe(0~20 mg/kg)和Zn(30 mg/kg)能显著提高蜜蜂的生存活力(P<0.05);高浓度处理水平下,在24、48和96 h时,Fe对蜜蜂的LC50分别为333.09、219.34和163.05 mg/kg,Zn的LC50为945.27、670.19和380.33 mg/kg,Fe毒性大于Zn,Ca和Mg毒性较小。

The objective of this study was to find the effects of syrup diets with different levels of Ca,Mg,Fe and Zn on the survivability of honey bees, consequentially to provide some references for supplement strategy of these four mineral. There were 11,12,14 and 15 treatment levels for Ca,Mg,Fe and Zn mineral nutrition, which was provided to bees by 50% syrup. The results indicated that low mineral treatment levels, including Ca(0-100 mg/kg),Mg(50 mg/kg), Fe(0-20 mg/kg) and Zn(30 mg/kg),significantly improved bee survivability( P <0.05);treated within 24,48 and 96 hours, LC50 of Fe to bees was333.09, 219.34 and 163.05 mg/kg, respectively, while that of Zn to bees 945.27,670.19 and 380.33 mg/kg, suggesting toxicity of Fe was obviously higher than Zn; the Ca and Mg was less toxic to bees compared with Fe and Zn.