Two hundred and seventy multiparous Chinese Yellow cattle (beef) were selected at 1 to 3months postpartum and divided in......

汉金杂种猪１１头和纯金华猪３头按外血含量（６２．６％、３７．５％和０％）分为３ 组，对其生殖器官及排卵数进行了最小二乘协方差分析。结果表明外血含量３７．５％和６２．５％的母猪子宫......