| 1 | Note :Sources is from Guangdong Province silkworm eggs inspection station. | |
| 2 | Every family will pack the silkworm eggs in paper, and start to hatch them. | |
| 3 | The key problem for incubation of silkworm eggs is the temperature and humidity in the incubation room. | |
| 4 | Statistic analysis on the data of Zhejiang silkworm eggs were used during 1968~2005. | |
| 5 | Control the deviation number of good eggs among samples is key point of ensuring the accuracy of percentage of good eggs. |
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