A trial with 36 dairy cows in mid-lactation allotted to 3 groups was carried with the aim to evaluate the possibility of increasing the concentration of folic acid in milk by feeding rations naturally rich in folic acid. This experimental ration contained brewery waste, cubes of alfalfa, brewers’ yeast and wheat germ in addition to the hay and beet given to all of the cows. Over the 4 week experimental period, the control group (T) received the standard ration, the AFO-S group received an added 2 g of synthetic folic acid per cow per day and the AFO-N group received the experimental ration. Neither the addition of synthetic folic acid, nor the AFO-N ration led to a significant increase in the concentration of total folates in milk. However, there was an increase in the concentration of tetrahydrofolate in the milk of the AFO-N group after four weeks. This same ration also brought about an increase in daily ingestion by more than 1 kg dry matter and an increase in milk production by more than 2 kg.
Soya-, cereal-, seed- or nut-based plant drinks are consumed increasingly frequently as milk substitutes. Agroscope researchers have studied the macro- and micronutrients in these drinks and have identified major differences between the plant drinks themselves as well as in comparison with milk.
Cheese varieties from Switzerland are characterised according to various criteria. Agroscope analysed the free volatile carboxylic acids in ten cheese varieties and demonstrated that the latter are suitable for characterisation and differentiation.
Spring J.-L., Reynard J.-S., Verdenal T., Zufferey V., Cléroux M., Dienes-Nagy Á., Bourdin G., Bieri S., Blouin A., Carlen C., Favre G.
Safeguarding the clonal diversity of Muscats in the Valais has enabled the characterisation of 42 Muscat à petits grains and 36 Moscato Giallo clones. The characteristics of the two are quite distinct, particularly their aromatic potential. The best clones will be included in the Swiss certification scheme.