Work of doctor's degree is worked out on the topic „Raw hide preservation using vacuum under low temperature”. The choice of this subject is related to the improvement of quality of environment developing such important process of leather manufactory as hide preservation. Within the work the significance of the history of leather manufactory has been analysed on the different stages of historical development in Latvia, the import and export data of raw hide/skin and leather in Latvia has also been clarified in time period 2001 - 2012. Different preservation methods were analysed and compared for the spotlighting of existing problems and for emphasize of necessity of development of new and more environmentally friendly preservation method. Hypothesis: raw hide storing in vacuum prolongs its’ preservation duration. The urgency of the theme is confirmed by many scientists who are still trying to find new and cleaner short term preservation methods. Investigations have been carried on developing efficiency of preservation of raw hide/skins and reducing pollution by preservative materials. Therefore, the investigation of new and more effective short term preservation method is very welcome. The main aim of the doctorate work is to develop simple and advanced short term preservation method of hide using vacuum, to investigate the vacuum effect on hide qualitative properties storing it at low temperature and to establish peculiarities of vacuumed hide processing into leather. Accordingly, the set of tasks, which let achievement of main aim of the work, was formed. During the research all tasks have been executed and the aim of the work has been achieved. New short term preservation method was developed. It allows refusing from chemical materials which commonly are applied for curing of hide. The achieved preservation duration (22 days) is enough for collection of hides’ amount, which processing is profitable for tanneries. Peculiarities of vacuumed hide processing into leather were studied in laboratory and industrial conditions. It was confirmed that preservation of hides using vacuum allows produce of qualitative leather. The author of the work: Ilze Gudro The theme of the dissertation: Raw hide preservation using vacuum under low temperature Key words: Hide, preservation, vacuum, low temperature The extent of the work: 122.pg. The number of formulas: 9 The number of figures: 47 The number of tables: 26 The number of sources of literature: 105 The number of appendixes: 3 The content of the work: 5 chapters, 48 subunits