Smejtková A., Vaculík P., Přikryl M., Pastorek Z. (2016): Rating of malt grist fineness with respect to the used grinding equipment. Res. Agr. Eng., 62: 141-146.Grain size distribution of grist is dependent on the type of grinding mill. The most widely used crushers used for malt grinding are roll grinding machines and dispersants are the disc mills. For rating of grist fineness grists made in the two-roller mill KVM 130/150 and dispersant the disk mill Skiold SK 2500 was used. The selected types of barley malt were processed: light malt, Munich malt, caramel malt and colouring malt. Rating of malt grist fineness was made with a help of sieve analysis using a "Pfungstadt sifter". Conclusions from the measurements are as follows: by using the two-roller mill the coarsest grist is got from caramel malt and the finest malt from the light malt. The dispersant was processing grist at a speed of 1,500 rpm and 2,800 rpm. For each speed, the coarsest grist was obtained from caramel malt and the finest grist was obtained by crushing colouring malt.

The article deals with the determination of water consumption at selected dairy farms during milking using automatic milking systems (AMS). The aim was to determine the water consumption during basic activities associated with the AMS use, namely water for cleaning the milking set and water for cleaning and disinfecting the entire milking system at set daily intervals (hereinafter water). The research was carried out at seven farms in the Czech Republic, which house dairy cows of the black-spotted Holstein cattle. The evaluated groups of dairy cows had from 97 to 103 milked cows for the entire monitored period. Based on the performed measurements, it was found that the average amount of water consumed by AMS per 1 litre of milked milk was 0.33 litres. The results show that water consumption is not completely constant during the year. Multiple factors, including performance, the number of non-drinking milk detections, animal health and current climatic conditions, influence it.

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