Power maize silage (WPMC) – a mixture of whole-plant maize and cobs used in cattle fattening – has different characteristics from whole-plant maize (WPM). A digestibility test was carried out to determine the nutritional value of WPMC, study the influence of the composition of the ration and verify the application of equations predicting digestibility. Four rations comprising 20 %, 50 %, 80 % or 100 % WPMC silage and hay were fed to wethers. Compared to the nutrient content of a maize silage containing 55 % cobs published in the tables, WPMC had a 58 % higher starch content, a 34 % higher fat content, a 31 to 62 % higher fatty-acid contents and an approx. 30 % lower parietal constituent content. The higher the WPMC content of the rations, the less favourable the digestibility of the parietal constituents. Digestibility of the organic matter, crude protein and cell walls (NDF) of power maize silage was not influenced by the composition of the ration (P > 0.1). The equation for whole-plant maize correctly predicted the digestibility of power maize silage from rations containing 50 to 80 % WPMC; with 100 % power maize silage, the equation for non-whole-plant maize was more appropriate. WPMC obtained energy values (NEL, NEV) 10 to 13 % higher than those of a common maize silage.
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.