Linares T, King W A, Plöen L
Nord Vet Med. 1980 Oct;32(10):433-43.
The early development of embryos collected from repeat breeder heifers after slaughter was studied using different methods; morphological appearance, number of cells and features in semithin sections of Epon embedded material. Embryos collected from virgin heifers were used as controls. The incidence of abnormal embryos was higher in the repeat breeder than in the virgin heifers. The abnormalities were mainly confined to cell organization. They could be seen already during the oviductal transit of the ova.
利用不同方法对屠宰后从屡配不孕小母牛采集的胚胎的早期发育进行了研究；包括形态外观、细胞数量以及环氧树脂包埋材料半薄切片中的特征。从处女小母牛采集的胚胎用作对照。屡配不孕小母牛的异常胚胎发生率高于处女小母牛。异常主要局限于细胞组织。在卵子的输卵管运输过程中就可以看到这些异常。
