The objective of the studies was to determine if colostrum diluted with electrolytes may affecct extensiveness and intensity of parasitism in calves. The studies were done on 35 calves (20 in experimental and 15 in control group) of a mean body weight at calving 35 kg. The animals from the experimental group were fed for the first 10 days of life colostrum diluted (1:1) with the electrolyte-nutritive mixture containing in 1 1 of water glucose 20 g, glycine 10 g, sodium acidic carbonate 5 g, natrium chloride 5 g. Control animals were fed colostrum only. All calves were coproscopically examined for cryptosporidia between 7 and 10 day of life. The extensiveness and intensity of invasion diminished in the experimental group as a result of 50% decrease of nutrient components (fat, proteins, lactose) in colostrum.
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