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吉林省处于东北地区中部,冬季长,气温低,蚯蚓生长繁殖期短。根据我校饲养观察情况,一般进入10月,生长速度明显减慢,繁殖力降低。到10月下旬,基本停止生长繁殖,以后,随着气温继续降低,如不采取有效保温措施,蚯蚓必将冻死。为了延长蚯蚓生长繁殖期,提高繁殖率,我们研究利用地热和马粪发酵产生的生物热的方法,产生一定的温度以使蚯蚓在室外能安全越冬。
Jilin Province is in the middle of northeast China, with long winters, low temperatures and short earthworms growth and reproduction. According to our school keeping observation, generally into October, significantly slowed the growth rate, reduced fertility. By the end of October, growth and reproduction will basically stop. As the temperature continues to drop, earthworms will freeze to death if no effective insulation measures are taken. In order to prolong the period of earthworm growth and reproduction and to increase the reproduction rate, we studied the method of using bio-heat generated by geothermal and horse-dung fermentation to produce a certain temperature so that earthworms could winters safely outdoors.