Three experiments with growing-finishing pigs were performed to evaluate the effects of dietary trivalent chromium (Cr) under certain feeding conditions. The results of the first study indicated that an amount of 200 mg Cr / t feedstuff (ppb) is sufficient since daily gain was increased when 200 ppb Cr was added compared to the control treatment. Dosages higher than 200 ppb Cr showed no effect or even impaired growth performance. The second study gave evidence that Cr supplementation impairs daily gain at least in case of a low dietary carbohydrate content. Furthermore both studies suggested that the Cr-effect on insulin metabolism may also affect glucagon metabolism. The third respiration trial demonstrated a clear relationship between crude protein or rather amino acid supply and dietary chromium. Independent of the dietary protein content the nitrogen and fat digestibility was improved whereas fat accretion was reduced. Nitrogen retention and, therefore, nitrogen utilisation was improved by Cr merely in case of high protein supply.
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.