The efficacy of the silage additives Bonsilage Mais Granulat and NH 708 uroSIL on aerobic stability was investigated in maize silage in comparison to a treatment without additive and a treatment with propionic acid. In addition two further treatments with urea (granular form and liquid application) were investigated. The maize was harvested at two different dry matter levels (35 and 45 % dry matter) and ensiled in 1.5 litre laboratory scale silos. 7 days before the silos were opened, the silage underwent an air stress for 24 hours. The storage period lasted 56 days.All silages showed a good fermentation quality. In comparison to the other variants, the silages treated with urea had higher crude protein contents. The silages with 35 % DM showed few yeasts and by none of the investigated silages a heating was observed. In the silages with 45 % DM there were differences concerning the aerobic stability between the variants. In comparison to the treatment without additive, the product Bonsilage Mais Granulat slightly improved the aerobic stability. With Luprosil, NH 708 uroSIL as well as with the two variants with urea, the aerobic stability was strongly improved.
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.