Changing reproductive performance in dairy herds - has the paradigm altered?

摘要

The decline in dairy cow fertility has become a 'wicked problem'; this is a problem that lacks a consensus about the optimal solution and an inability of experts and science to resolve the conflicts. While a decline in dairy cow fertility is generally accepted in Ireland, this is not accepted in all countries internationally. This paper presents the arguments for and against a decline in fertility and how this decline can be reversed.