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| 循环选择此法是用一个标准测交系与其他血统的新系群杂交，根据杂交效果选择新系群的牲畜留作种畜，并逐代反复进行。 多用于鸡的繁育 | |||
| 轮回选择 | |||
| 反复选择 | |||
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recurrent selection : 18 phrases in 5 subjects |
| Agriculture | 3 |
| Animal husbandry | 3 |
| Construction | 1 |
| Genetics | 6 |
| Technology | 5 |
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