A feeding experiment was conducted on three pig farms to evaluate the possibility of producing pork with both a specifically improved nutritional value and exceptional eating quality. By supplementing the feed, the concentrations of selenium, vitamin E and omega-3 fatty acids were increased in the meat and adipose tissue of the pigs as well as in the subsequent meat products. The omega-6/omega-3 ratio was improved to a desirable value below five. A combined supplementation of organic (selenomethionine) and inorganic (sodium selenite) selenium ensured that the meat contained enough selenium to permit the claim «source of selenium». The eating quality of the meat products was not impaired. Prolonged ageing of the meat from three to nine days markedly improved its tenderness. With a heritability of 0,37 and an observed high variation, pork tenderness can also be improved by means of breeding. In contrast, electrostimulation of the carcasses did not consistently improve the tenderness. We conclude that applicable measures to improve nutritional value and eating quality of pork under practical production conditions are available.
Metschnikowia pulcherrima is a naturally occurring yeast with applications in agriculture, the food industry and biotechnology. Agroscope is investigating this yeast in particular with regard to biocontrol applications in plant protection.
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.