9 June 1995

Low protein grass is worry

LOW protein levels in grass could be limiting early summer dairy performance in many parts of the UK, warns the Dalgety Dairy Herd Health and Productivity Service (DHHPS).

It claims latest blood test results from the service, run with Edinburgh University, have shown unusually low blood urea levels in cows at grass this spring. That pointed to shortages of effective rumen degradable protein (ERDP) that could reduce yields.

DHHPS vet David Whitaker advises feeding a high ERDP feed if cows have plenty of grass in front of them.

But if grass was in short supply an energy shortage would be the main risk.