求翻译：苏姜猪是以杜洛克猪、姜曲海猪、枫泾猪为亲本，经过7个世代继代选育而成的新品种黑猪，分别含有杜洛克猪血统62.5%、姜曲海猪血统18.75%和枫泾猪血统18.75%。是什么意思？

Su Jiang pigs are Duroc, the Jiangquhai pigs, pig Fengjing parents, after seven generations following the generation of breeding new varieties from the black pig, respectively, containing 62.5% Duroc origin of Jiangquhai pig descent 18.75% and maple Jing swine origin 18.75%.

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Su Jiangzhu is take Du the Locker pig, Jiang Quhai the pig, the maple tree jing pig as a parent, passes through 7 generations to continue the new variety black pig which a generation of selective breeding becomes, includes Du separately the Locker pig blood relationship 62.5%, Jiang Quhai the pig bl

Su Jiangzhu Duroc pigs, Jiang Quhai pigs, fengjing pigs for the parents, after 7 generations after generations and breeding of new varieties of black pigs, respectively containing Duroc swine origin 62.5%, Jiang Quhai of swine origin and fengjing swine origin 18.75%.

正在翻译，请等待...