10 November 1995

Cell counts too high, says Genus

ABOUT 55% of dairy herds have cell counts higher than 250,000/ml.

And most herds have individual cows with high cell counts, according to the latest Genus Milkminder report based on the performance of its 4000 costed dairy herds (see Business, p23).

These cows will be losing money, as well as having the potential to infect others in the herd.

Poor fertility

Money is also lost through poor fertility, with net cost a cow a day for a one-day delay in conception at £1.44.

A 100-cow herd which has a calving interval of 395 days will lose about £4320 a year through lost income and extra costs, says the report. &#42