Cardoso F M, Godinho H P
Anat Anz. 1979;145(3):262-7.
The morphological events occurring in the Brazilian Nelore zebu testis from 3 to 18 months of age are described. Spermatozoa were seen only at 16--18 months of age indicating a considerable delay in the sexual development of the Nelore zebu when compared with taurine breeds.
描述了巴西内洛雷瘤牛在3至18月龄时睾丸发生的形态学变化。仅在16 - 18月龄时观察到精子，这表明与普通牛品种相比，内洛雷瘤牛的性发育存在相当大的延迟。
