Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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Name

Kolosov Yuri Anatolevich

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professor

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Don state agrarian University
   

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Articles count: 10

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433 kb

CHARACTERISTICS OF THE STATE OF SHEEP BREEDING IN RUSSIA AND THE ROSTOV REGION AND PROSPECTS FOR THE DEVELOPMENT OF THE INDUSTRY

abstract 1572003029 issue 157 pp. 392 – 410 31.03.2020 ru 10
The article provides a convincing argument for the preference of wool and fur products over artificial and synthetic textile fibers. It is noted that artificial fibers and synthetics have negative ionization, while natural wool has positive ionization. It is emphasized that negative ionization is far from harmless to humans. The analysis of the state of sheep breeding in the Russian Federation is given and this industry in the Rostov region is characterized against this background. The data on the number and productivity of sheep of the main age and sex groups, the production of young animals per one hundred ewes are presented. The characteristic of tribal resources of the country and region is given. The breeding base of the industry in the Russian Federation is represented by 205 breeding organizations, including 3 breeding and genetic centers, 44 breeding plants, 145 breeding reproducers and 13 gene pool farms, which contain 1389.8 thousand sheep (39.0 % of their total number in agricultural organizations and 6.6 % of the sheep population in farms of all categories), including 904.7 thousand Queens (35.0 and 6.2%, respectively). The breeding base of the Rostov region has eleven farms, of which 6 breeding plants for such breeds as the Soviet Merino and salskaya and 5 breeding reproducers. In addition to these breed resources, there are breeding reproducers for the qigai and edilbaev breeds in the region. Total number of breeding sheep in the region is almost 44 thousand. The article indicates main problems in the development of the industry and ways and means to solve them
128 kb

CREATING NEW LAMB MEAT PRODUCTS

abstract 0891305052 issue 89 pp. 789 – 799 29.05.2013 ru 1421
The article researches a question of effective using of meat of sheep and chicken meat for increasing of product list
240 kb

FATTENING QUALITIES AND MEAT PRODUCTIVITY OF SALSKAYA SHEEP BREED OF IMPROVED GENOTYPES

abstract 1541910033 issue 154 pp. 360 – 382 30.12.2019 ru 13
Improvement of domestic breeds of Merino sheep remains an important task. The reorientation of the industry to wool-meat and meat-wool direction of productivity can contribute to the restoration of domestic sheep breeding. An example of such conversion is a relatively young breed called Dzhalginsky Merino, created in the Stavropol region on the basis of the Stavropol breed with the involvement of resources of domestic and world breeding. In the current situation, it seems relevant to use Dzhalginsky Merino, in order to improve the meat and wool qualities of sheep of domestic fine-wool breeds. Obtaining a new genetic combination of animals, formed by combining the genotypes of breeds Salsky, Stavropol and Dzhalginsky Merino will increase the efficiency of the industry in a market economy and will provide a more complete use of the productive potential of the breed. The results of studies on obtaining and use of animals, new genetic combinations of a wool – meat direction of productivity, with high energy of growth, meat and wool productivity, improves the efficiency of Merino sheep are an important theoretical justification for making a contribution to zootechnical science, with the aim of improving fine-wool breeds of sheep and can be used in practical work in the production of high quality lamb
169 kb

MEAT PRODUCTIVITY OF BULL CALVES UNDER INTENSIVE REARING

abstract 1592005013 issue 159 pp. 183 – 194 29.05.2020 ru 10
The article presents a comparative assessment of the meat productivity of young cattle of the two most common intensive meat breeds in the Russian Federation (Aberdeen Angus and Hereford) in comparison with the most numerous native in the South of the country domestic breed, which is Kalmyk. Intensive rearing from 9 to 18 months of age was carried out in the conditions of industrial fattening complex on rations not containing juicy forages. In the process of 273-day intensive rearing, in bulls of the tested breeds average daily live weight gains from 1455 to 1526 grams were achieved. During this period, an absolute increase was obtained in Aberdeen-Angus bulls-416.6 kg, in peers of Hereford and Kalmyk breeds-413.6 and 397.2 kg. The highest pre-slaughter live weight and slaughter rates were noted in Aberdeen-Angus bulls, having a yield of a pair carcass of 59.4 % and a slaughter yield of 62.8 %. The meat of Aberdeen-Angus bulls has the highest content of fat and dry matter, but they have less protein, lower pH and moisture binding capacity and a higher loss of meat juice during cooking, compared with the bulls of the Kalmyk breed. It was confirmed that the coefficients of transformation of protein and energy into products are closely related to the intensity of growth and weight of the carcass. The most effective of these indicators were in bulls of Aberdeen-Angus, then Hereford and Kalmyk breeds. A similar pattern between the breeds was manifested in terms of profitability and cost recovery
311 kb

MODELING REGIONAL SYSTEMS OF BREEDING PIGS

abstract 1141510076 issue 114 pp. 1004 – 1020 30.12.2015 ru 708
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
206 kb

OPTIMIZATION TECHNIQUES FOR PCRRFLP FOR GENOTYPING SHEEP

abstract 1131509102 issue 113 pp. 1474 – 1482 30.11.2015 ru 591
Diagnosis by PCR-RFLP (polymerase chain reaction – polymorphism of the lengths of restriction fragments) is the standard analysis of point mutations for the diagnosis of allelic polymorphism of candidate genes related with productive qualities of farm animals. Along the length of the fragments (RFLP) make a conclusion about the absence or presence of the point mutation, and homozygosity or heterozygosity of the individual. The aim of our work was the optimization of protocols for conducting PCR-RFLP analysis for genotyping sheep for genes of the growth hormone gene differential growth factor and gene of calpastatin
153 kb

THE EXPERIENCE OF CREATING A POPULATION OF MEAT-WOOL SHEEP

abstract 1341710071 issue 134 pp. 884 – 894 29.12.2017 ru 91
The study of the productive qualities of crossbred offspring from different breeding combinations and identifying the most effective ones providing the maximum increase in the production of high quality lamb while reducing its cost is an important problem and is essential for further development of methods of creating a new type of precocious meat and wool sheep. In the Rostov region in the result of the establishment of populations of meat-wool sheep there are several groups of animals with different characteristics and hereditary inclinations. As the base of the work there is a method of mating and breeding of sheep of the desired type. The article presents the results of one of the fragments of a large complex work in which the possibility of using three-pedigree hybrids, created with the involvement of potential salskaya, edilbaevskaya and intense meat-wool breed, which is severokavkazskaya, to improve productive quality in the breeding of sheep. We have evaluated productivity and biological features of hybrids and proved the economic efficiency of their use in the production of mutton. We have given the results of the control slaughter and assessment of qualitative indicators of the meat of young sheep. The set of indicators characterizing meat productivity and meat quality revealed that the superiority of the studied indicators remained for two - and three-bred cross cattle. Hybrids have a higher rate of growth and quality parameters of meat productivity. These options are simple and complex industrial crossing are promising and can be implemented and used on the farms of the zone of breeding Merino sheep. Thus, the use of crossbreeding gives an opportunity to convert a flock of sheep in the desired direction quickly. At the same time, three-pedigree hybrids better combine the valuable qualities of the used species
119 kb

THE INFLUENCE OF AUSTRALIAN MEAT MERINO AND STAVROPOL RAMS ON WOOL PRODUCTIVITY OF SOVIET MERINO SHEEP BREEDS

abstract 1021408061 issue 102 pp. 951 – 958 31.10.2014 ru 955
In the article we have studied the influence of breeding Stavropol Rams breed and Australian meat merino for increase a wool productivity at offspring received from crossing with Soviet merino females
146 kb

THE INFLUENCE OF GENOTYPE OF RAMS ON THE QUALITATIVE CHARACTERISTICS OF MEAT

abstract 1171603022 issue 117 pp. 372 – 382 31.03.2016 ru 294
The article presents the results of the qualitative assessment of meat of crossbred rams. The analysis of the data shows that crossbred rams of 2, 3 and 4 groups increased the absolute mass of muscle tissue compared with purebred 12.3; of 18.2 and 25.6%, respectively. Fine-wooled rams were superior in the relative content of bone in carcasses of crossbred 1.1- 4.2 percent. Output of pulp for 1 kg of bones had the advantage of crossbred rams 2, 3 and 4 groups compared with purebred 0.12; 0.24 percent and 0.44 kg respectively. The analysis of the data shows that in carcasses of young animals of all the groups the greatest specific weight took cuts of the 1st sort. Nevertheless, the valuable parts to carcass weight balance was higher in the carcasses of the crossbred calves. So, rams 2, 3 and 4 groups, this advantage was 1.9; 4.5 and 4.7%, respectively. Thus, the analysis of a complex of indicators characterizing the quality of meat rams of different genotypes revealed that the superiority for the studied indices took place for two - and three-bred animals. These options of both simple and complex industrial crossing are promising and can be implemented and used in the farms of Merino and crossbred sheep
141 kb

WOOL PRODUCTIVITY OF MERINO SHEEP OF IMPROVED GENOTYPES

abstract 1291705089 issue 129 pp. 1235 – 1244 31.05.2017 ru 249
The article deals with the issue of improving the profitability of sheep breeding by using improved mutant genotypes in the breeding system. The results of studies of the main indicators of economic-useful traits are given, the dynamics of growth, level and quality of wool productivity of sheep of improved genotypes obtained on the basis of such breeds as Soviet merino and Stavropolskaya, as well as firstgeneration daughters cultivated in themselves are estimated. It was found that at birth, the live weight in the groups of the 3 group (the breeding of half-blooded hybrids "in oneself") was higher than that of the females from the 1 and 2 groups, respectively, by 0.50 kg, or 13.1%, and by 0.20 kg or 5.2% (P> 0.95). At a more senior age, the young, having a large live mass at birth, retained its rank position. The highest indicator of the cutting of physical wool was observed in animals of the 2 group, obtained as a result of the use of sheepproducers of Stavropolskaya breed on sheep of the Soviet merino. The parameters of the 1 and 3 group were lower by 0.6 kg - 12.3% and 0.17 kg - 3.5% (P> 0.95), respectively. The conclusion is made that the use of sheep-producers of the Stavropolskaya breed on the uterus of the Soviet merinos breed had a positive effect on the wool productivity and the live weight of the hybrid offspring. Further breeding of half-blooded hybrids “in oneself” showed the possibility of reproducing improved genotypes without losing the acquired qualities
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