06.02.10 Private animal husbandry, technology of production of animal products (agricultural sciences)
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EMBRYO PRODUCTIONS WITH CONVENTIONAL AND SEXED SEMEN USE IN "KUBAN” AGRO COMPANY
DescriptionAt the Kuban Agricultural Association OJSC, Ust-Labinsky District, Krasnodar region, a research has been carried out on obtaining embryos from cows and heifers of donors using sexed and conventional frozen seed. In the first experiment, 159 doses of ordinary frozen semen from 3 different bulls were used to inseminate 57 cows and heifers - donors. In the second experiment, 63 doses of normal frozen semen from 3 different bulls were expended for insemination of 21 cows and heifers of donors after treatment with super ovulation for 9 days. On the 7th day after insemination, the embryos were collected in experimental cows and heifers of the donors, their number was counted, and the quality was evaluated. As a result of the study, it observed that the obtained embryos from each donor were different in quantity and quality. The number of embryos, using traditional sperm, was from 1 to 42, and on average per cow 13.68 ± 2.45. Among them, 8.40 ± 1.08 embryos belonged to the first class, 0.35 ± 0.45 - to the 2nd class; 4.90 ± 0.94 to the 3rd class, as well as 4.90 ± 0.94 embryos were degenerated. After donor insemination with sexed sperm, 1 to 22 embryos were obtained, an average of 9.01 ± 4.03. Including 4.92 ± 3.04 embryos belonging to the 1st class, 1.31 ± 1.02 - of the second class, 0.28 ± 0.27 - of the 3rd class and 2.48. ± 0.71 degenerated. The results showed that the average number of embryos obtained using conventional sperm is larger compared to the use of sexed semen, regardless of the donor cow or heifer. Conclusion: the use of traditional frozen semen allows us to get more and better quality embryos from cows and heifer donors
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Description
One of the urgent directions of finding promising raw ingredients in the feeding of farm animals and birds is the use of larvae of flies as a source of alternative protein. In Russia, LLC «New Biotechnology» is engaged in the processing of organic waste using the larvae of the flies of the population Lucilia Caesar under a project accredited at the Skolkovo Innovation Center, which, after a global reconstruction, started its production. The use of flour from larvae of flies in feeding poultry, including turkeys, is a new direction that is becoming more widespread among leading world producers. The authors established the high efficiency of using protein-lipid concentrate (PLC) from the larvae of flies of the population Lucilia Caesar in the production of cross BIG-6 turkey meat. It is proved that the use of the studied additives in the amount of 5.0 and 7.5% in the diets of turkey-poults for fattening can increase the live weight of females and males of the experimental groups. By the end of the feeding, the excess in live weight of the females of the experimental groups relative to the control was 858 (8.67%) and 1211g (12.24%), males - 980 (6.17%) and 1362g (8.58%), respectively. The average daily gain in live weight of females of the experimental groups during the feeding period exceeded the control by 6.7 and 9.8 g, males - by 8.8 and 12.2 g, and feed costs per 1 kg of growth decreased: in females - by 0.06 and 0, 17 kg, for males - 0.09 and 0.18 kg. The protein level in the average meat sample increased in the I experimental group by 1.26, in the II experimental group - by 1.57%, and the cholesterol level decreased by 7.21 and 10.95%. The results of the study allowed us to conclude that the protein-lipid concentrate (PLC) from the larvae of flies of the Lucilia Caesar population contributes to an increase in the growth and development of turkey poultry, lower feed costs and improve the quality of meat
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Description
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
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Description
The problem of providing people with food remains relevant in connection with the growth of the world's population. According to statistics, by the 21st century, the production of all types of food increased by more than 20%, while at the same time, the consumption of food products per capita increased by only 6%. In Russia, the production of food products, including dairy products and beef, is not growing at an insufficient pace. In this regard, in order to stabilize and develop the livestock industry in our country, it is important to improve the material and technical base for transferring it to the intensive path of development - maximum production with the lowest labor and material costs. Based on the achievements of scientific and technological progress and a systematic approach to the production of high-quality products, an intensive direction in the livestock industry should be based, the use of highly efficient milk production technologies, based on the achievements of science and technology, and the management of cost-effective dairy cattle breeding. Of particular strategic importance is the effective improvement of the breeding qualities of cattle and the creation of conditions for the formation and effectiveness of the manifestation of genetic capabilities in animals. Currently, the problem in the livestock sector in Russia is the insufficient provision of the feed base and the introduction of rations in the technology that are adequate to the needs of highly productive animals. Statistics show that in the Russian Federation the manifestation of the genetic potential of livestock is only 60-70%. To solve this problem, fodder production should be improved; the existing set of measures should be effectively used in the development of progressive methods of forage preparation and feeding rationing, taking into account the physiology of animals. Livestock farmers of PJSC "Rodina" of the Kanevsky district of the Krasnodar region, having the status of a breeding plant for cattle breeding of the Holstein breed, reached rather high indicators for improving the genotype of dairy cattle and the effectiveness of its manifestation
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THE EFFECT OF FEED RATIONS ON THE PRODUCTIVITY OF HOLSTEIN-FRIESIAN BREED BULL CALVES
DescriptionThe article presents the results of scientific and industrial experience in identifying the effect of feed additives on the productivity and biochemical parameters of bull calves’ blood in fattening. The calves of Holstein-Friesian breed at the age of 30 days were selected as objects of research. In the diet of the bull calves of the experimental groups, we used feed additives in the main diet: probiotic feed additive “Cellobacterin+”, feed vitamin-mineral concentrate “Tetra+”, complex feed concentrate. We found that the most active weight gain is observed in the group of calves that received complex feed concentrate. In all experimental groups of bull calves, we observed a decrease in the activity of hepato-indicator enzymes and a thymol sample. Based on the data obtained, it can be concluded that the use of the complex feed concentrate containing biologically active substances and the additive “Cellobacterin+” (in comparison with the control and other experimental groups) leads to maximizing the increase in the average mass of bull calves, which is associated with the synergistic effect of biologically active substances and living microorganisms Enterococcus faecium 1 - 35. The same tendency is observed with respect to the activity of hepato-indicator enzymes - AST and ALT, which, compared with the control group, decreases by 35.6% and 28.2%, respectively
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Description
An important factor in improving the efficiency of production in the agro-industrial sector is to improve the quality of poultry products and their processing. The article presents the dynamics of the influence of stimulating drugs on the productive qualities of the black African ostrich. The reserves of increasing the production of eggs of black African ostriches and its quality due to the use of stimulating drugs were revealed. The effect of the use of the drug called "Radostin Vitasil" on the chemical composition of eggs, egg production of black African ostriches is shown. The obtained research results convincingly prove that the mass of ostrich eggs of the experimental groups significantly exceeded the control by 5.45 and 3.11%, respectively. Changes in the mass of white and yolk of the egg of ostriches of experimental groups as a result of feeding the drug "Radostin Vitasil" affected the ratio of white/yolk, which slightly decreased towards the optimal. There was a significant difference in the content of carotenoids and vitamin A in the egg yolk of the I experimental group by 10.98% and 10.05%, in the II experimental group-9.15% and 6.35%, in comparison with similar indicators in the control group, respectively. There was an excess of vitamin E level in the eggs of the experimental groups in relation to the control by 6.73 and 3.42%. The results of incubation showed that the stimulating drug "Radostin Vitasil" had a positive effect on the process of embryonic development. The calculated economic efficiency of the drug "Radostin Vitasil" confirmed the feasibility of using this drug in the production of black African ostriches eggs
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THERAPY FOR ESCHERICHIOSIS OF NEWBORN CALVES
DescriptionBlood samples were taken from newborn calves and sent to the Rostov regional veterinary laboratory. The result of the general analysis of blood showed increased erythrocytes, increased red blood cell count and increasing white blood cell count as well as low hemoglobin levels. The results of the studies on the content of phosphorus, calcium, zinc, vitamins A and C in the blood showed that the sick calves have hyperphosphatemia, namely violations of the phosphorus-calcium ratio. A decrease in vitamin A in sick calves to 8.2±0.5 mcg% and zinc to 74.1±1.2 mcg% was found .This indicates a violation of mineral metabolism, which occurs due to a lack of minerals in the diet, but also with intensive withdrawal from the body, as a result of poor absorption and impaired renal filtration. As a result of typing on O-antigen, using a set of polyvalent and serogroup agglutinating O-coliseums, the presence of an adhesive A20 antigen was revealed. In the course of research, faeces from 9 newborn calves of 1-8 days of age were sent to determine the sensitivity to antibacterial drugs. Thus, 9 samples of cultures of E. coli sensitive to the following antibiotics: enrofloxacin, imipenem, meropenem, levofloxacin, and vancomycin, gentamicin, cefotaxime, and rofloxacin. Based on data from blood tests and sensitivity to anti-biotics, the animals were divided into 3 groups. And each group used three different treatment regimens. Observing the calves of the experimental groups, we found that the condition of the sick animals stabilized within 2-4 days. In the first group of 12 calves, 1 calf fell and 11 survived. In the second group of 11 calves, all survived. In the third control group of 12 calves, 7 fell, and 5 survived. When determining the sensitivity of Escherichia cultures isolated from calves of this farm to antibiotics, 100% sensitivity to levomycetin sodium succinate was obtained
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HEMATOLOGICAL STATUS OF DOGS USING A BIOSTIMULATOR DEP
DescriptionIn veterinary practice, feed biologically active additives of plant and animal origin are widely used to improve digestion and absorption of nutrients, as well as to correct the normalization of metabolism. One of these biologically active drugs is denatured emulsified placenta (DEP) which has antiviral, anti-inflammatory, and immunomodulating properties. Therefore, the purpose of our research was to study the effect of DEP on the morphological composition of dog blood. During the research, it was found that the number of red blood cells in dogs of the control group was 1.57% or 0.12 x 1012/l more than in the experimental group. Erythrocytes of dogs in the control group had 0.37% more volume than the same indicator in the experimental group. However, each red blood cell of animals in the experimental groups was characterized by a high content of hemoglobin in it by 1.6%. Before the start of the experiment, the number of lymphocytes in the blood of dogs in the control and experimental groups was 4.07 and 2.34%, respectively, below the minimum reference value. The number of monocytes and granulocytes in the peripheral blood of dogs in the control group was 0.23 and 1.49% higher, respectively, than in the control group. The platelet content was higher in the control group than in the experimental group by 49.38 x 109/l or 27.3%. Changes that occur in the body of dogs under the action of a biostimulator indicate an increase in the production of antibodies to protect the body from infections and ensure the animal's immunity. They completely regulate the immune system
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MEAT PRODUCTIVITY OF BULL CALVES UNDER INTENSIVE REARING
DescriptionThe 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
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MEAT QUALITY OF DUCKS GROWN ON DIETS WITH DIFFERENT CONCENTRATIONS OF BENTO-CLAY
DescriptionObtaining maximum productivity and reducing production costs are the main challenges facing livestock producers in modern conditions. To achieve the effectiveness of the poultry industry, we carried out a research in the utilities sector of the Rostov Region, the purpose of which was to study the effectiveness of the use of a feed additive – bento-clay in the diet of ducklings grown for meat. In the research, we study the influence of various doses of the feed on the diet and growth of ducklings. Experimental research data showed that the introduction of bento-clay into the diet of ducklings as a feed additive allowed to increase live weight, average daily gain, the safety of ducklings, the mass of half-gutted and gutted carcasses, the yield of edible parts, and meat quality compared to the control group. Thus, bento-clay influenced the increase in the water-holding ability of ducklings meat, which contributed to the improvement of its technological properties. Therefore, at three weeks of age, the live weight of ducklings was 11.5% -18.2% more than ducklings of the control group, and at seven weeks of age this difference was 8.4-12%, respectively, and the average daily increase was 7.2 -14.1% with high safety