What is the difference between clinical and sub-clinical milk fever?

Clinical milk fever incidence is currently running close to 10% in UK dairy herds. It’s costing approximately £200 per cow. Clinical milk fever is a metabolic disease caused by a low blood calcium level, also termed hypocalcaemia. Subclinical milk fever can affect up to 75% of the herd, it’s unrecognisable and generally remains untreated. As such it may persist into early lactation and economically have a more negative effect on the farm that clinical cases.

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We had problems with milk fever before using DC X-Zel. Since using it, this has greatly reduced. The cows clean up really well post calving to the point we have reduced post calving checks, all we do is routines and Pd’s. We have found the cows calve down well and don’t lose as much condition, they appear healthier and colostrum quality is also improved.