A comparative study on hatching active eggs of Oncomelania hupensis in soil by three methods

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  • 1 Qingpu District Center for Disease Control and Prevention, Shanghai 201700, China;
    2 The Attached Hospital of Chinese Medicine Institute of Hunan Province;
    3 Shanghai Center for Disease Control and Prevention

Received date: 2017-08-15

  Online published: 2017-12-20

Supported by

Supported by the Science and Technology Development Fund from Qingpu District Shanghai Municipal(No. 2015-33)

Abstract

Objective To explore an easy and feasible method for hatching snail eggs in soil where snails existed. Methods On May 8th, 2016, 20 soil samples were taken from Qingpu district where snails existed, and 3 units of soil which weighed 500 g respectively were used to carry on the experiment to hatch snail eggs in each piece of soil. The three methods included hatching snail eggs directly in the natural conditions, hatching eggs with improved conditions and hatching eggs with stable temperature. Kappa test was used to analyze the consistence of the results of the three methods. Kruskal-Wallis test was used to compare the hatching time, and χ2 test was used to compare the three rates of hatching eggs. Results There was a statistical significance between methods with stable temperature and improved conditions in temperature (t=7.309, P=0.000). There were statistical significances in periods of hatching snail eggs among the three methods by Kruskal-Wallis test (χ2=269.340, P<0.001). There was no statistical significance in hatching rates with the three methods (χ2=5.880, P=0.053). Conclusion All the three methods can hatch snail eggs in the soil where snails existed, while the method hatching snail eggs directly under natural conditions canbe used as a complementary method since it needed simple experiment conditions.

Cite this article

TIAN Jian-guo, LI Gui-fu, PENG Li-xia, JIANG Shou-fu, ZHANG Xiao-ping, LI Jun . A comparative study on hatching active eggs of Oncomelania hupensis in soil by three methods[J]. Chinese Journal of Vector Biology and Control, 2017 , 28(6) : 600 -602 . DOI: 10.11853/j.issn.1003.8280.2017.06.022

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