A recent Teagasc report stated that spring-calving cows should be on a rising plane of feed intake and milk solids yield through the latter half of the first rotation.

Grass intake of about 14kg dry matter (DM) per day, offered as two grazings, provide an excellent quality base in the diet.

Providing the correct rate and type of supplementary concentrate can deliver an economic response and set up the herd for a good lactation yield.

Feeding up to 6kg produced a milk response, but at a significantly declining rate. Cows which are now supplemented, milked relatively well also, did so at the expense of body condition.

In terms of a carryover effect, the cows fed 3kg or 6kg had a similar milk yield through the summer, while the non-supplemented cows’ yield remained lower during that period.

These results indicate that spring feeding 3-4kg of concentrate with good intakes of grass will set up the herd for a good peak yield.

A 5-6kg rate may be warranted on farms during times when grass intake is limited. As well as rate, concentration type is also of importance.