This paper illustrates the importance of the analytical method for the determination of fatty acid composition in feed. In Switzerland, not only the lipid content but also the fatty acids profile are necessary to formulate a ration that will produce an optimum quality of fat in the pig carcass. Results of this study showed that the fatty acid profile obtained by gas chromatography (GC) with in situ transesterification was more accurate and complete than that obtained by a GC method in two steps (fat extraction followed by esterification) or by a gravimetric empirical method which employed the extraction of soluble compounds in a given solvent.
Which stakeholders in the dairy sector have an influence on the productive life of dairy cows? Research results from FiBL and Agroscope suggest that broad-based cooperation is needed to create structures for a longer productive life.
Agriculture is aiming to reduce greenhouse gas and ammonia emissions. Agroscope showed that for dairy cattle housing, feed composition plays a role in these emissions as well as wind and temperature.
Lazzari G., Münger A., Eggerschwiler L., Borda-Molina D., Seifert J., Camarinha-Silva A., Schrade S., Zähner M., Zeyer K., Kreuzer M., Dohme-Meier F.
Tannin-containing feedstuffs like Acacia mearnsii and sainfoin (Onobrychis viciifolia) have a measurable impact in reducing methane emissions from dairy cows. However, since these feedstuffs in some cases lead to productivity losses, careful consideration must be given to their use.