Ibach B, Weissbach L, Hilscher B
Andrologia. 1976;8(4):297-307. doi: 10.1111/j.1439-0272.1976.tb01659.x.
In principle, the spermatogenesis of the dog resembles that of other animals. It consists of 6 consecutive, differentiating spermatogonia generations (A1-A4, Im, B). The number of ensuing spermatogenetic cell generations corresponds to that of other mammals. We divided the spermatogenesis of the dog into 10 stages in order to attain a precise systematization. The cell-divisions of the successive spermatogonia occur in stages II, III, V, VI, VII, and VIII. Stages V a and V c are characterized by the meiotic divisions.
原则上，狗的精子发生过程与其他动物相似。它由6个连续的、分化的精原细胞世代（A1 - A4、Im、B）组成。随后的生精细胞世代数量与其他哺乳动物相同。为了实现精确的系统化，我们将狗的精子发生过程分为10个阶段。连续精原细胞的细胞分裂发生在第二、三、五、六、七和八阶段。第五阶段a和第五阶段c的特征是减数分裂。
