Scientific Journal of KubSAU

The positive effect of soybean oil meal in combination with biologically active substances on productivity and meat quality was determined in the experiments with young pigs

In the conditions of the North Caucasus during aflatoxin B1 tolerant level in the ration it is desirable to breed the broiler chickens cross “Smena-4” and “Ross 308” adding toxi-nyl preparation in the amount of 2 kg/t

Application of enzymatic agent MEK CX-3 (as a component of combined feeds for broiler chicks) promotes live weight gain, feed conversion efficiency and safety of young birds

The article gives theoretical and practical justification of sorghum use in animal feeding. The results of the study of organization of forage resources for livestock and poultry with the use of forage sorghum are shown. The ways and directions for the increase of nutritive value and productive effect in the diets for animals and poultry are determined

Zoo engineering expediency of triticale utilization as part of combined fodder for pigs in their growing and finishing is studied. Triticale grain may be used as part of combined fodder for young pigs up to 50 %

The efficiency of replacement of sunflower oilcake by rapeseed oilcake from double-zero rapeseed varieties was proved for mixed fodders for pigs

A method of obtaining insertion mutants for the hoc gene, which encodes for the main phage antigen, was developed on the model of bacteriophage T4. This gene was cloned in the plasmid pBSL0+ and was disrupted by insertion of foreign DNA. The phage mutants were obtained by in vivo phage-plasmid recombination. The construction of insertion bacteriophage mutants was carried out in two stages. The resulting mutants on this procedure could be grown on wild-type E. coli strains, which is convenient for the production and use of these phages in therapy. The mutants obtained had reduced antigenicity. At the same time, the yield of the mutant strains was high when they were grown on the non-suppressor E. coli laboratory strains. A number of stages of purification of the bacteriophage mutants obtained were performed. Preparations have been studied by transmission electron microscopy and mass spectrometry. By several periodic cultivations of the mutant bacteriophages, it was shown that mutations of this type are stably maintained during more than 50 generations. T4 related bacteriophages of the family Myoviridae, for example, T-even, have the significant homology amongst their genomes, which makes possible to produce similar mutants. Thus, our method was developed to obtain mutants with reduced antigenicity which can be used for both the treatment of systemic infections, and diarrhea in the case, when, bacteriophages penetrate into the bloodstream. Such phages can be used in medicine and veterinary. The reported study was partially supported by RFBR, research projects No. 13-04-00991, 16-44-230855

The author has studied the efficiency of diets with kiselgura. Introduction of the kiselgura into the mixed fodder for chicken-broilers favors increasing of live weight by 4.8 % and average daily weight gain by 5.0%

The article presents materials on comparative study of the nutritional value of chickpeas and peas which are widespread in the arid zone of the Southern Urals. The scheme of the scientific and economic experiments involved the assessment of yield formation of chickpeas and peas during the vegetation. The study showed that different varieties of chickpea and pea have considerable difference in the content of nutrients. The amount of crude protein in the pea grain ranged from 25.1 to 26.8%, and chickpea – 21.7 - 22.9%. With regard to the fat, its highest concentration was in chickpea grain - 3.63%, on average, which is 1.16% higher than on average in the pea grain. The chemical composition of the pea and chickpea grain of different varieties points to differences in their composition and homogeneity within the culture. Basing on the study, we recommend to sow chickpea and pea grain in the middle of May to obtain the highest yield, this, in turn, has a positive effect on the nutritional value of the crops. When selecting plants for cultivation in the conditions of the Southern Urals, it is preferable to choose the variety of Madonna pea, which has a higher potential for yield than the chickpea variety Krasnokutsky-123. It has been experimentally found that chickpea grain has better moisture-retaining power in a bound condition during the vegetation period as compared to the relevant characteristics of pea grain, which is a positive drought-resistant value of crop. In structural elements of the harvest the peas showed the trend of the highest rates in comparison with the corresponding elements in chickpeas

In the decision to establish solid fodder resources in the arid parts of Southern Russia triticale should take its rightful place. It must be introduced instead of winter wheat, inferior to the yield, quality and output of nutrients per unit of area. It is necessary to maximize the potential of new varieties of winter triticale, as the productivity of animals largely depends on the varietal characteristics of the culture. Triticale has attracted special attention by its ability to exceed the parental forms on productivity and quality, and resistance to adverse soil and climatic conditions and the most dangerous disease is not inferior to rye. The generalized data of most researchers characterize triticale as a factor in increasing the productivity of animals and reducing the cost of feed per unit of output, although in some cases there is a negative trend in reduction of productivity by the replacement of cereal grain components for winter triticale. Due to the enrichment of compound feed with triticale grain by enzyme preparations and enzyme-probiotic supplements we can greatly increase productivity, digestibility of main nutrients, improve meat quality and reduce the cost of feed per unit of output. We can increase the productive effect of triticale grain by extrusion. In physiological metabolic experiments, it is found that by extruding of triticale grain the digestibility of the main nutrients is increased by 1.3-1.8%. Extruding of triticale before feeding promotes slaughter yield and increases the levels of protein in the muscle. The use of triticale in rations instead of wheat reduces the cost of the diet, the cost of the manufactured products and increases profitability. The study of achievements of scientists from various scientific organizations necessitates the further breeding work with the culture of triticale and requires the development of innovative technological methods that can help reduce the concentration of pentosans and beta-glucans in the grain