Coupled dairy-beef systems are of major significance in Switzerland’s cattle sector. Using Swiss reference data, the present study modelled greenhouse gas emissions per cow and year for a range of different milk and meat yield levels. The study also determined the impact on greenhouse gas emissions of using a combination of sexed semen and beef bull semen respectively on dairy cows. The results have shown that the ratio of milk to meat production of a dual-purpose cow (around 24) corresponds almost exactly to the ratio in Swiss production overall in 2017 and in the years prior. Taking only milk yield into account, the greenhouse gas emissions per reference cow and year fall from 9,226 kg CO2eq. (dual-purpose cow) to 5,842 kg CO2eq. (high-yielding cow). Taking both milk and meat yields into account, the CO2 emissions of dual-purpose cows are lower than those of dairy cows. However, if for the insemination of dairy cows sexed semen is consistently used to produce replacements and beef bull genetics are used for all other inseminations, CO2 emissions at an annual milk yield of 10,000 kg (8,787 kg CO2eq.) are even lower than the emissions caused by a dual-purpose cow. For reasons of climate change mitigation, inseminations should consistently be carried out using sexed semen for replacements and beef bull genetics in other cases. For producers in mountain areas and for organic holdings the utilisation of dual-purpose breeds is expedient.
Although milk-production oriented (MPO) cow breeds have also become established in the mountain region, farms with the dual-purpose ‘Original Simmental’ breed are proving to be economically viable, with lower costs and higher direct payments making up for lower revenues from milk.
High milk yields before drying-off increase the risk of udder infections during the dry period. An online survey highlights what drying-off methods are currently used and how farmers rate the ‘incomplete milking’ approach for reducing milk yield.
Herholz C., Siegwart J., Bruckmaier R.M., Rytz E., Lamon I., Muhr M. und Stirnimann R.
In both sport and alternative agriculture, horses are once again being used as draught animals. Efficient power transmission plays an important role in the wellbeing of draught horses.