Brian Reidy: The many theories why milk volumes are lower

Some mysterious virus affecting the cows, yet to be named, is being blamed in some quarters while others are blaming feed quality

We are now in a critical period for milk production and fertility performance.

There is a lot of discussion about dairy herd performance at the moment. 

Bulk tank drivers are saying volumes are down and many herds owners are suggesting that they are around 3 litres back per cow on the same days last year.