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The sperm-rich fraction of semen was collected from two Landrace boars by the manual method. After removal of seminal plasma by centrifugation at room temperature spermatozoa were resuspended in ETCG-catalase diluent (Table 1) to give a concentration of 1-2 × 10<SUP>8</SUP> cells per milliliter, then cooled and stored in a cold room (4°C) for 1014 days. The sperm suspension (50100 m<I>l</I>) was inseminated in the normal way on the 2nd day of estrus. Of the two gilts inseminated, one farrowed 11 normal piglets following single insemination with sperm suspension stored for 12 days and the other gilt returned to estrus 19 days after insemination. Of the three sows, two returned to estrus 4966 days and one sow 22 days after insemination.
- 日本繁殖生物学会の論文
日本繁殖生物学会 | 論文
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