In Switzerland, some farms are using chemical preservatives in order to preserve moist hay. Detailed knowledge of the DM-content as well as the correct dosage are important for the success. In a trial, the efficacy of the preservative Selko Heu was investigated with hay of two different dry matter contents and three different dosages. As negative control, variants without additives were tested. These negative controls were additionally tested with different forage densities. During a period of 30 days, temperature was continuously controlled. Before and after this period, the dry matter contents and different parameters were analysed. In both DM levels, the untreated hay heated strongly and at the end it was totally moldy. The different densities showed that the stronger the hay was pressed, the higher the heating and the spoilage was. In contrast to the negative control, with the addition of the preservative Selko Heu, the heating up and the deterioration of the hay spoilage could be partly or totally reduced. The correct dosage is important for the success.
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.