n The Dairy Mail - Cool conception : research column

Volume 21, Issue 10
  • ISSN : 1561-4301


Reproductive performance in the modern high-yielding Holstein-Friesian dairy cow has decreased at such a rate, and to such an extent, over the last 40 years it is predicted that this high-performance production system will become unsustainable by 2020 if the current rate of decrease continues.

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