Scientific Journal of KubSAU

The article presents a methodological approach to the rational selection of the optimal working width by the example of a combined tillage unit using original software. To select the optimal working width of a combined soil cultivating unit, the initial data are: make (type) of the tractor (power tool), unit cost of the machine and tractor unit in comparable prices, production time of the machine and tractor unit to perform the technological operation at a given operating speed with a clear compliance with agrotechnical requirements, both to the technological operation itself, and, directly, to the agricultural machine. As an example, we consider a combined semi-mounted modular tillage and sowing unit for grain crops and the MTZ-82.1 tractor. In this unit, the main working bodies are S-shaped spring teeth and rollers. Based on the performed analytical studies of the pre-sowing (surface) tillage process and the application of theoretical modeling methods, mathematical dependencies have been developed to determine and further analyze the energy-technological parameters of combined tillage units with dynamic working bodies. The performed calculations according to the developed method allow us to choose the optimal working width of the combined soil cultivating unit

The article contains data on results of calving and blood tests of heifers moved from the Astrakhan region in the Temryuk district of the Krasnodar region in the condition of early pregnancy. According to the accompanying documents, cell blood count, hemoglobin and biochemical parameters were consistent with species and age normal. Calving took place without complications and did not require delivery; received 36 of 36 calves from cows. The quality of the calves found to be satisfactory. On the 45th day of service period, clinical signs of impaired health status were present in 2 animals, however biochemical markers of liver disease, inflammation, and anemia was identified in 7 heifers. In the context of work on creation of livestock combined milk and meat productivity of inseminated heifers and heifers of the Simmental breed the Simmental semen (25 cows) and Aberdeen Angus (34 cows) breeds. Fruitfully inseminated 55 out of 60 animals; indicator of severity of calving was 8 % for Simmental cows. Calves of Simmental breed and Simmental-Aberdeen Angus cross-breeds meet the requirements for live weight at birth and the exterior. Farming on the formation of herds of milk and meat direction of productivity are found to be effective

The fattening of Holstein cattle for more than 90 % provides the beef cattle division of the firm «Agrocomplex» based in the village of Vyselki, the Krasnodar region. The share of the Aberdeen Angus breed is 6.3 % and Charolais at 0.6 %. The reason for insufficient supply with fattening complex of Charolais cattle is a high indicator of severe parturition, postpartum complications, and reduced productive longevity of cows of breeding herds of these breeds. In a "Livestock complex" bulls of breeds of Holstein, Charolais and Aberdeen Angus reach the required values of live weight for the established standards of the breeding time. Charolais have the best indicators of absolute and relative weight gain and the shortest feeding season. The profitability of cattle fattening in CJSC company "Agrocomplex" is low, but the efficiency of the industry is ensured by the presence of its own processing plants. To improve the profitability of beef production it is required to increase the proportion of specialized breeds for meat productivity; to generate the most uniform by age and live weight of the group; identify the cause of the high rate of culling of Charolais cows for postpartum complications and take action to address them

The article contains the summarized information on the activity of a farm having a sector of “Agrotourism”. There was revealed the positive dynamics of development of agricultural tourism in the Krasnodar region, the extension of offered services in this direction; there was set the obstacles restraining the development of the present sector. There were named the reserves to increase the profitability: (domestic milk production and participation in programs of state support

The article contains complex research results dedicated of reproduction the cattle of the animal breeding industry in the agricultural holding called “Kuban”. Key indicators characterizing reproductive function at cows were set; they were estimated in terms of the plans of the economy in the milk cattle breeding industry. The reduced values of the birth-rate of calves were revealed on 100 cows and in the term of the production use of cows, their main reasons were set. The performed calculations prove the possibility of increasing the profitability of milk production

This article is devoted to studying the influence of conditions of keeping and feedings on broilers of Hubbard RedBro cross, and the quality of the received products in case of application of floor and cellular content in the conditions of a farm. It was found that when receiving a feed of its own production with the use of feed ingredients grown in farms without pesticides, recorded a statistically significant reduction in the potentially dangerous health animal substances. As compared with a factory forage therein reduced pesticide content by 14 times, mercury and arsenic is 24 times, 5 times cadmium, lead 10 times. Results of studying of economic indicators of cultivation of broilers of cross Hubbard RedBro and also chemical composition and quality of carcasses demonstrated that the essential difference between a floor and cellular condition of keeping is not established, however use of a diet on the basis of what forages promoted statistically reliable decrease in concentration of toxic metals in muscles of a bird of experienced groups. As a result it was found that use of the researched compound feed in diets of broilers raised indicators of biosafety and provided ecologically safe (“organic”) meat products of poultry farming

The article contains the experience of the development of the methodology and the computer program for calculation of regional and local systems of pigs hybridization at the example of the Rostov region (Russia). Crossing the GP lines for F1 should be organized in multiplier farm, which may be separate farms and to be part of large commercial farms. For the production of F1 in a multiplier farm, we must breed a purebred specialized paternal and a maternal line, selected on the effect of combining ability. For the successful functioning of the system of hybridization, it is necessary to build a genetic pyramid, including breeding and genetic centers (nucleus farm), multiplier farm, reproducing the baseline. The article gives a detailed calculation of sow population of levels of P, GP, GGP for maternal and paternal breeds of pigs. The program uses user-defined parameters of pigs productivity, of the simulated population, and the parameters characterizing the intensity of selection of young animals. To ensure annual production of 1,822 million pigs in the Rostov region it is necessary to provide the availability of brood stock in the amount of 89 thousand heads, 6 800 heads in the structure of grandparent flocks (GP), 730 heads in the structure of the Grand-Grand-parent stock (GGP), excluding sows second maternal and paternal breeds

During the research, we have developed a low-temperature zonal heating panels with an infrared emitter to create a local microclimate for piglets in the suckling period. This heater is lightweight and durable frame in the form of an inverted box size 400 mm x 1800 mm, attached to the wall of the building swivel. Top frame mounted thermostat is connected to a temperature sensor mounted directly on a metal plate with a thickness of 1 mm, painted in black color. In the upper part of the inner carcass layer is a light insulating material, which is located directly under the low-temperature heat source is electric. Study of the optimal size of the heating panel revealed that in view of the limitations associated with the area of the machine and biological characteristics of the optimum size of the sow for 11 piglets are: width – 400 mm; length – 1500 mm (at ventral position) and 1800 mm (lateral position). Comparison of different heating sources for piglets revealed that the use of infrared lamps enables newborn piglets seating area by 55.6%, while in 28 days – by 88.9%. Infrared lamps can not completely meet the recommended specifications as to ensure a more intense heat lamp to be lowered towards the floor surface, which leads to a reduction in the useful area heated. Using as a source of local heating mats and low-temperature panels satisfies pigs in the area of the den in the early suckling period at 138.9 and 200.0%, to weaning, respectively – by 48.5 and 65.5%. Thus, we have developed a low-temperature heating panels contributed to a more uniform distribution of heat in a recreation area of suckling piglets and to provide a comfortable environment at temperatures of 2-3 C lower in comparison with other methods of heating

The problem of industrial poultry farming is the emergence of a growing birds’ arthritis. Inflamed joints are usually seen in poultry and accompanied by the inability to take food and water. The most characteristic of this problem in broiler chickens, young chickens of egg cross, i.e. birds of a short period of use. This is the reason for their rejection of the herd. Culling chickens are 10%, which furthermore reduces the total amount of livestock and leads to a reduction in the cost-effectiveness of growing birds. The analysis of our data gives a reason to believe that the main reason for culling poultry is acute inflammation of the joints or arthri-tis. According to the authors to ensure optimal rearing program, which should include the prevention of premature retirement of birds not only due to infectious diseases, but also the prevention of metabolic disorders and the exclusion of factors that could cause disruption of immunological reactivity. Currently, this program needs to be improved, which is particularly important in relation to vaccine pre-vention

Assessment of the nature of the impact of preventive immunization of growing chickens on the results of cultivation and state agencies involved in immune reactivity is the first step in finding ways to eliminate the negative effects of immunization. The results show that the healthy birds posses two sharp peaks of exceeding norms by weight of the liver – aged 50 days and 84 days - more than 20%. Spleen weight at the age of 40 days exceeds 20%, and 50 days shows the greatest deviation from the norm. In the future, the relative weight of the spleen de-creased, and 84 days of age comes into compliance with the norm. The most significant change in the relative weight of the spleen and liver of poultry is set at the age of 50 days. The authors attribute this fact with a forced need to implement an immune response in a specified bodies accumulating overload antigenic incentives