February 2, 2012


UK scientists develop feed supplement for premium milk



Scientists in Wales, UK are developing a natural feed supplement that will help cows produce high-quality milk throughout the year.


Cows grazing on fresh pasture in the summer produce milk with high levels of beneficial unsaturated fatty acids - but the levels fall dramatically in winter when they are fed on conserved feed.


This is currently achieved by the artificial addition of expensive oils to cattle feed or supplemented into milk. However, scientists at the Institute of Biological, Environmental and Rural Sciences (IBERS) have identified natural volatile components of pasture shown to influence fat metabolism in the laboratory which could be added to winter feed.


They have developed the technology to manufacture compounds produced by grazed grass and have proven their efficacy in the laboratory. The next step is to test these in dairy cows to determine if the potential can be replicated in the animal to produce higher levels of unsaturated fatty acids in milk.


These unsaturated fats have been shown to reduce the incidence of cardiovascular disease and certain cancers in humans.


Dr Michael Lee who is leading the project said: "The technology we have developed is novel, meets an industry need and promises economic benefits to feed manufacturers, dairy farmers and retailers."


The project has benefited from GBP126,270 (US$199,988) funding from the Welsh Government's A4B programme which will enable IBERS to validate the technology it has developed through field trials.


IBERS are working with three industrial partners - including one of the UK's leading UK supermarkets and an animal feed manufacturer.


Alun Davies, Deputy Minister for Agriculture, Food, Fisheries and European Programmes said: "This is an excellent example of how industrial collaboration between higher education and industry could turn research into commercially viable products that boost production and improve the quality of the produce for the consumer.


There is a large potential market for the product in the UK, while the EU and US produce and consume 30% of the world liquid milk supply. Premium liquid milk is predicted to account for 25% of milk sold by retailers by 2020.


Additional advantages for using premium milk in other dairy products such as butter and cheese will also be investigated, the minister said.