4 .Apr.2019

Teagasc Grazing Trials Explained

What Does the Ideal Grass Grazing Variety Look Like?


No. 1. Graze Out - – A variety that delivers 15 tonnes is not much use on a farm if the cow won’t eat it.

No. 2. Yield - If the variety grazes out you want it to produce as much as possible.

No. 3. Quality – Now you have your utilisable yield determined, that sward should be of the highest quality possible.

Teagasc Grazing Trials Explained:

Tegasc Moorepark recently published 2-year results from their grazing trials in Ireland. The aim of these grazing trials is to establish how well individual grass varieties are grazed by animals. To translate this into layman’s terms – the trial measures which varieties animals like to eat the most. As we know, the more palatable the grass the more the cow will eat; resulting in more milk or meat being produced from grass. This is an objective that every farmer aspires to.

Taking a look at the results from the recent Teagasc trials – there are two key measurements that are used to score the best varieties.

  1. What grazes out? – The varieties left of the white line in the graph below have very good graze out.
  2. What yields? –  Varieties above the 12,000kg/ha white line in the graph below have very strong yields.

The top left quadrant of this graph is the sweetspot - where we want all varieties in our grass mixtures to be.


The Results Speak for Themselves:

Nifty – DLF Variety - Only Diploid in the top left “sweetspot” and has mainline seed availability.

Xenon – DLF Variety – The ideal grazing variety in our view but has little seed for the market.

Aspect – DLF Variety – Best variety with mainline availability of seed

Solas – DLF Variety – Very comparable to Abergain

Twymax – DLF Variety – Old DLF genetics, demonstrates DLF breeders have been getting it right long-term.