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Most free-stall housing systems in the Netherlands are equipped with slatted or solid concrete floors with manure scrapers. A slipping incident occurs when the required coefficient of friction (RCOF) exceeds the coefficient of friction (COF) at the claw-floor interface. An experiment was conducted to measure ground reaction forces (GRF) of dairy cows (n =(More)
Some of the strains used for the biological acidification in breweries belong to L. delbrueckii subsp. delbrueckii, L. delbrueckii subsp. lactis or L. fermentum. However, more recent studies showed that most strains isolated are physiologically different from the above mentioned species and were tentatively allocated to Lactobacillus amylovorus. Genotypic(More)
Xanthohumol (XN), a component of hops, is lost in significant quantities in the conventional brewing process. In commercial beers less than 0.2 mg XN/L are found. In order to increase the yield of XN in the brewing process, the parameters of XN recovery were studied. During wort boiling, XN is largely isomerised to isoxanthohumol. Further losses are owing(More)
The pressure distribution under the bovine claw while walking was measured to test the hypotheses that the vertical ground reaction force is unevenly distributed and makes some (regions of the) claws more prone to injuries due to overloading than others. Each limb of nine recently trimmed Holstein Friesian cows was measured five times while walking over a(More)
17 strains of Pediococcus, including new isolates and strains from various collections, were investigated by nucleic acid hybridisation. Most of the newly isolated strains, selected from about 500 strains according to physiological and biochemical characters, could be attributed to known species. The reassociation data demonstrate the separate status of P.(More)
The distribution pattern of pressure over the bovine claw was investigated to test the hypothesis that the ground reaction force is unevenly distributed and makes some regions of the claw more prone to overloading and injury than others. In eight recently trimmed Holstein Friesian cows, the distribution of vertical pressure was measured during square(More)
Lactic acid bacteria that are able to spoil soft drinks with low pH comprise a limited number of acidotolerant or acidophilic species of the genera Lactobacillus, Leuconostoc and Weissella. Various Gram-positive rods causing turbidity and off-flavour were isolated from orange lemonades. Physiological and biochemical studies including SDS-PAGE whole-cell(More)
Claw disorders and lameness in dairy cattle are an increasing problem of the modern dairy industry. To prevent claw disorders from evolving from the subclinical to the clinical stage, trimming is the management practice most routinely applied. The goal of preventive trimming (Toussaint-Raven method) is to promote natural loading by increasing the(More)
Microbiological Pollutions in Mineral, Spring and Table Waters have different potency according to health hazards or to noncompliance with good manufacturing practices. Therefore, the microbiological parameters of mineral water and table water directives should be reexamined for their suitability. Only Escherichia coli is an indicator of faecal pollution(More)
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