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can zhong fu shi leng cang wen du tan tao
Author(s): 
Pages: 36-37
Year: Issue:  4
Journal: Bulletin of Sericulture

Keyword:  冷藏期限复式蚕卵重要措施胚子发育两种方法中间温度单式蚕种保护实用孵化率;
Abstract: <正> 越冬后蚕种保护的重要措施是冷藏,在生产上有单式冷藏和复式冷藏两种方法。单式冷藏,当蚕卵发育到丙1~丙2胚子间,用2.5℃保护,直至出库催青,施行简便,一般冷藏期限较短,适宜春期用种。本省单式冷藏入库时期约在2月上旬。复式冷藏在蚕印发育到甲胚子时,用0℃进行第一次冷
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