The article substantiates the relevance of labour safety issues in modern agricultural production and its importance in the value orientations and professional competencies of agricultural specialists. A review of scientific articles is carried out to determine the key tracks of the discourse and analyze approaches to understanding labour safety by the professional community of agricultural specialists and scientists representing various subject areas of knowledge. We show the data of a survey of agricultural specialists in the south of Russia in the areas of agro-engineering, agronomy, plant protection, veterinary medicine and animal science, as well as a survey of employees of enterprises of the Stavropol Territory in rural and urban areas. The culture of labour safety as the value orientation of agricultural specialists is formed in the process of developing professional competence in the system of agricultural education and is supported in the production activities of agricultural enterprises through institutional mechanisms, corporate culture, requirements of technological processes.

The study of the forces acting on the animal in the installation for fixing with veterinary treatments. The most time consuming processes in service animals are zootechnical and veterinary treatment of sheep. During the year, it is necessary to carry out more than ten such treatments of each animal, which requires a lot of labor. Almost all animal treatments such as feed to the operator’s workplace and their fixation in a convenient position for him requires significant physical effort of the operator. Therefore, today the technologies and technical means should be created to reduce labor costs for various treatments. The relevance of the problem is due to the lack of theoretical foundations and experimental data for the creation of technological equipment for fixing sheep in zootechnical and veterinary treatments. The purpose of the study is the theoretical and experimental justification of the installation for fixing sheep in zootechnical and veterinary treatments with the justification of the existing efforts on the animal, excluding injury. Developed installation and presented a scheme with two of the conveyor belts forming the grooved shape When designing the installation, the main focus was on the justification of structural elements and modes of operation from the viewpoint of eliminating the possibility of injury to the animal. The experimental studies have confirmed the correctness of the obtained analytical dependences. The obtained results will enable designers to create equipment for the fixation of sheep at the zootechnical and veterinary treatments, precluding injury to the animal and reducing labor costs.

The efficiency of milking dairy farm animals depends on the reliability of the milking equipment. Domestic milking machines are equipped with UVU 45/60 with a rotary vacuum pump that has an extremely limited service life, which is mainly due to imperfection of the lubrication system for its working bodies. In addition, oil loss along with the exhaust air leads to high lubricant consumption and environmental pollution. Analysis of modern designs of foreign rotary vacuum pumps shows that their operational reliability and service life are increased at the expense of maximum reduction of friction in the working body due to the improvement of the lubrication system, increased productivity, and elimination of oil loss and environmental pollution. One of the technical solutions to solve these problems is to equip the vacuum installation with a device that provides circulating lubrication of the pump working bodies without emitting oil into the atmosphere. The team of authors substantiated the design of the oil trap for the pump lubrication system with the efficiency of separating oil from the exhaust air up to 95 %. Experimental vacuum installations with single-circuit and double-circuit lubrication systems have been developed. Production tests of vacuum installations performed at a number of farms in Stavropol Territory confirmed high efficiency of the proposed engineering solution. The operational reliability of the pump due to the circulating lubrication of its working bodies in terms of the prolonged overhaul period increased by 65-70 %. Irrecoverable oil losses and environmental pollution are almost excluded. The payback period for additional capital investments in the vacuum installation design does not exceed 1.2-1.5 years.

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