One Se pellet weighted 10g was taken in by each sheep of experimental groups. After seven months ( 210d), The results showed that non pregnancy rate of famale sheep decreased by 42.67% than those of famale sheep of controlled groups.

  • 给试验组羊每只投服10g硒弹丸1枚7个月(210d)后进行测试,其结果表明:试验组比对照组母羊的空怀率下降了42.67%;

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