本期初三新开了一门动物实习课。在实习课中,笔者领导初三学生采用科学方法养鸡,生长快,能够预防疾病,成本少,效果很好。特介绍如下,供同志们参考,并希予以指正。我们的养鸡实习,是从1956年10月11日开始,到1957年1月5日结束。在这两个多月的时间内,长得快的由12两半长到3斤9两,比原来的体重增加了2斤12两半(即增加3倍半以上);长得最慢的,也由13两长到2斤11两,比原来的体重增加了1斤14两(即增加2.3倍以上)。其中初二十四班第二小组创造了一个星期长半斤的最高纪录。养鸡的方法:我们采用什么科学方法呢?归纳起 The third day of the current opened a new animal practice class. In the practice class, the author leads the third grade students to adopt the scientific method to raise the chicken, grow fast, can prevent the disease, the cost is less, the effect is very good. Special introduction is as follows for comrades for reference, and hope to be correct. Our poultry internship began on October 11, 1956, and ended on January 5, 1957. In these more than two months, the fastest growing from 12 halves to 3 jins and 9 lows, an increase of 2 jin and 12 halves over the original weight (ie, an increase of 3 and a half times); the slowest one , But also by the two long to 2 pounds 11 two two, than the original weight increased by 1 kg 14 two (that is, an increase of 2.3 times more). One of the first twenty-four classes in the second group created a week-long half a catty record. Chicken Method: What kind of scientific method we use? Summarized