全国桑蚕一代杂交种质量调查及行业标准实施评价Ⅲ.实用孵化率、杂交率、病卵率调查及评价

Quality Inspection and Evaluation on Trade Criterion of the Hybrid Variety Silkworm Eggs of Throught Country Ⅲ. General Quality and Evaluation of Practical Hatchability, Hybrid Rate, Sick Eggs Rate

依据 1999- 2 0 0 3年监督抽查的春用桑蚕一代杂交种质量的测试成绩 ,分析实用孵化率、杂交率和病卵率的分布情况和质量指标认为 :杂交率≥ 95 %、病卵率 <0 15 %的指标比较合理 ;实用孵化率≥ 90 %的指标偏低 ,可提高到 92 %以上。

Practical hatchability, hybrid rate, sick eggs rate were analyzed based on the inspected results of 5 years. It was rational for hybrid rate≥95%, sick eggs rate<0 15%, and was low for practical hatchability≥90%, which could be increased to 92% above.