The Study Of Production Regimes And Quality Parameters Of Extruded Feed Additive Based On Corn Seed And Substandard Egg Mass

On the base of practical studies were established the rational parameters of technological processes of production of extruded feed additive. There was determined an expedience of mixture of substandard chicken egg mass and the crushed corn seed in two stages in frame (during 18 s) and blade (during 120…180 s) mixers. There were determined the optimal regimes of mixture extruding: pressure in working zone of extruder 2…3 mPa, consumed force of electric motor 4,0…4,5 kW, temperature on outcome of extruder 110…120 ºС, duration of process 60…120 s, diameter of matrix port 10 mm.There were given the results of study of parameters of quality and nutritive value of extruded feed additive. It was established, that in the process of extruding the quality parameters of food additive are improved at the expense of dextrinization and gelatinization of starch, decrease of bacterial and fungal pollution, disinfection of product.There was proved a possibility to solve problem of utilization of defective eggs at feeding poultry

Development of Technology of Using Substandard Eggs in Farm Poultry Feeding

Theoretically and experimentally, there was substantiated the expediency of enriching grain raw material in the composition of feed with the protein of animal origin due to a substantial reduction of nutritional and energy value of the grain components that are produced in Ukraine, often with violation of agrotechnology. The possibility to use valuable substandard egg mass for feeding agricultural poultry was proved. This will allow solving the problem of utilizing defective eggs.A technological way of producing the extruded feed additive was developed, which implies obtaining the preceding mixture of crushed corn and egg mass without shell of substandard chicken eggs in the 1:1 ratio in a frame mixer for 180 s, mixing the preceding mixture with corn grit, which remained in the blade batcher for 120…180 s, and the extrusion of the resulting highly homogeneous mixture. The rational parameters of technological process of the extrusion of the feed additive were established: pressure in the working zone of the extruder is 2...3 MPa, power consumption of the electromotor is 4.0...4.5 kW, product temperature at the outlet of the extruder is 110…120 ºC, duration of the process is 60...120 s, diameter of the hole of the matrix is 10 mm. The optimum amount of the egg mass in the mixture is 10 %. The influence of the extrusion process on the quality and nutritional value of the extruded feed additive was defined. During the extrusion process, the 3,1 % loss of crude protein content was observed, the starch content decreased by 26.8 %, in this case, the content of water­soluble carbohydrates increased by 6 times. During the storage of the extruded feed additive for 3 months, bacterial semination decreased by 7 times.Biological assessment of efficiency of the improved technology of the production of extruded feed additive was defined on laboratory animals, and it was found that the extruded feed additive is characterized by high biological value, so in the tested group the daily average gain of live weight of rats was 25,4 % higher, and the conversion of feed was 20.3 % lower than in the control group

Development of A Method of Protection of Concrete Floors of Animal Buildings From Corrosion at the Expense of Using Dry Disinfectants

Concrete floors are most commonly used in animal housing. However, the specific environment of livestock buildings (moisture, urine, disinfectants) has a negative effect on concrete and leads to its corrosion. The influence of chemical and physical factors on concrete is reinforced by the development of microorganisms, which quickly adapt and use concrete as a living environment. To reduce the influence of an aggressive environment on the concrete floor, an experimental mixture of dry disinfectants was proposed. The components of the disinfection mixture have been selected taking into account the safety for animals and humans. The TPD-MS method was used to determine the change in the chemical composition of concrete. To study the microstructure of concrete, the method of scanning electron microscopy was used. Microbiological studies revealed bacteria A. Thiooxidans, S. aureus, E. coli, S. enteritidis, S. Сholeraesuis, C. Perfringen and micromycetes of the genus Cladosporium, Fusariums, Aspergillus, which contribute to the development of biological corrosion of concrete in livestock buildings. The fact of the negative impact of concentrated disinfectants on the structure of concrete was also established. As a result of the studies carried out, it was proved that a mixture of dry components for disinfection exhibits antimicrobial properties to varying degrees to the strains of field isolates of bacteria and fungi isolated in a pig-breeding farm. It was found that when using the proposed mixture of dry disinfectants in the research room of the pigsty, the relative humidity decreases by 38.5 %; ammonia content – by 46.2 %; hydrogen sulfide – by 57.8 %; microbial bodies – by 74.7 %, compared with the control room. It has been experimentally proven that the proposed mixture of dry disinfecting components has hygroscopic and antimicrobial properties and is promising for use in livestock farms