75 (2)s 86-93

The essence of fertilization: oocyte meets sperm
A. VAN SOOM, M.A. Shehab-El-Deen, J.L.M.R.LEROY

The problem of reduced fertility in high yielding dairy cattle is a very complicated one, and the relationship between various measures of fertility and level of milk production remains controversial. In this brief review the essence of the problem is considered: what is the oocyte's and the sperm's contribution, and what is the importance of the resulting embryo in the declining fertility of the Holstein Friesian cow?

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pp 86-93