In agriculture today it is extremely important that animals grow quickly, are healthy, and consume little feed. Therefore, alternatives are sought to achieve good parameters for the growth and development of animals. The aim of B. Sc. Thesis was to determine whether the technology of injecting nanobubbles into drinking water affects the growth and development of animals. Some researchers have already been carried out in this field. The positive effect of nanobubbles on the growth, development, and utilization of feed was demonstrated. For the experiment, we used laboratory mice as model organisms because they have a fast generation interval and are easy to handle. We experimented with 36 laboratory mice that were separated by sex, line (fat/lean), and type of treatment. One group of mice received water infused with nanobubbles, and the other group received normal water (from the tap). We started the experiment in mice, at 3 weeks of age and ended it at 8 weeks of age. We weighed the mice weekly, measured the amount of feed consumed, calculated the efficiency of the feed consumed, and changed the water daily. We also collected feces from the bedding in the cages at week 7 to calculate the digestibility of crude protein and crude fat. We found that in most cases, we could not confirm the positive effect of nanobubbles on growth and development as well as feed conversion in laboratory mice. Since the average feed consumption of mice in the nanobubble group was lower and the average gains of mice in the nanobubble group increased toward the end of the experiment, a longer experiment or the use of more animals might provide better results.
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