{"title":"Monitoring of the implementation of the potential for reproduction of the Kholmogory breed of cattle in the farms of the North-West region of the Russia","authors":"V. A. Olontsev, P. Ukolov, O. Sharaskina","doi":"10.52419/issn2782-6252.2022.2.104","DOIUrl":"https://doi.org/10.52419/issn2782-6252.2022.2.104","url":null,"abstract":"The most important side in breeding work is reproduction and its indicators. In modern conditions, domestic cattle breeds are losing their popularity, there is an intensive expansion of native breeds by Holstein bulls of American lines, which on the one hand leads to an increase in milk productivity, but at the same time leads to a decrease in the productive longevity of the livestock used. On the territory of the North-Western Federal District of the Russian Federation, mainly black-and-white root breeds are used, both locally selected, such as the Kholmogorskaya breed of cattle, the Yaroslavl breed, and \"imported\" ones.The advantage of domestic cattle is that over the years, genotypically formed resistance to unfavorable paratypical factors has led to productive longevity, higher fertility rates than those of foreign-bred cattle used in the district. The young of native breeds have more advantages in terms of survival in the pre and postnatal periods of ontogenesis.The study consisted in monitoring the realization of the reproduction potential among reproductive farms for the Kholmogorsky breed of cattle. The article presents materials on the monitoring carried out and their analysis is carried out, the indicators of reproduction on the territory of breeding farms are estimated. The analysis showed that the range of variability is about 10-15%, allowed us to draw conclusions about the need to control the quality of reproduction of young animals in livestock farms, confirmed the regularity (positive correlation) of live weight to the first insemination, as an indicator of growth and physiological development, created a number of recommendations for the zootechnical service of farms to improve the intensity of reproduction, increase the quality of the resulting repair livestock as a vector of improvement of the regional Kholmogorsky breed of cattle.","PeriodicalId":428779,"journal":{"name":"Issues of Legal Regulation in Veterinary Medicine","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128467845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Results of morphological examination of blood of service dogs with signs of chronic kidney disease","authors":"V. Trushkin","doi":"10.52419/issn2782-6252.2022.2.133","DOIUrl":"https://doi.org/10.52419/issn2782-6252.2022.2.133","url":null,"abstract":"The paper presents the results of a morphological study of the blood of dogs of service breeds, in which signs of chronic kidney disease were detected. Often, the pathological condition of the kidneys develops as a secondary process due to intoxication of endo- or exogenous origin, infectious and invasive diseases. The danger of chronic kidney disease is that the owners or maintenance staff notice the appearance of animal health problems already in the late stages, when conservative treatment most often cannot give positive dynamics. During a clinical blood test, it was found that the dogs of the experimental group (patients) had erythropenia and hypochromemia, which were most likely associated with impaired renal function, and, as a consequence, decreased erythropoietin secretion. Of course, the decrease in the number of red blood cells caused a significant decrease in the hematocrit value to the level of 31.5 ± 5.6 l/l, which was 26.9% lower than the level of this indicator in healthy animals. When analyzing the leukogram, a picture of neutrophilia with a shift of the nucleus to the right was noted. The percentage of lymphocytes in the leukogram of sick dogs was 2.7 times lower than in healthy dogs, which can be considered a relative change in the percentage due to increased neutrophil counts. If we talk about the total content of leukocytes in the blood, no significant changes were found. Thus, during the study of the blood of dogs of service breeds with signs of chronic kidney disease, signs of hypochromic anemia were established.","PeriodicalId":428779,"journal":{"name":"Issues of Legal Regulation in Veterinary Medicine","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115462304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Venous vascularization of the rectum in Yorkshire piglets","authors":"M. Shchipakin, N. Zelenevsky, V. Khvatov","doi":"10.52419/issn2782-6252.2022.2.120","DOIUrl":"https://doi.org/10.52419/issn2782-6252.2022.2.120","url":null,"abstract":"To date, many studies have been conducted on vascular vascularization of the colon in mammals, but few of them concerned the features of the course and branching of vessels, in particular intramural veins with possible surgical interventions on omnivores. In connection with the above about the relevance of rectal research, we set a goal to study venous vascularization of the rectum, and use Yorkshire piglets as a model. Cadaverous material for the study was delivered to the Department of Animal Anatomy of the St. Petersburg State University of Veterinary Medicine from the Idavang Agro pig breeding complex in Nurma village, Tosnensky district of the Leningrad Region. The study was conducted according to the third stage of development – the second dairy (22-45 days of the postnatal period), according to the periodization of the life of pigs. To achieve this task, a complex of traditional anatomical research methods was used: fine anatomical dissection, vasorentgenographic, photographing and morphometry. When examining the rectum of Yorkshire piglets, it was found that the main venous highway of this organ is the cranial rectal vein, as well as the presence of a wide network of anastomoses of the pelvic cavity organs should be taken into account when it is possible to spread the pathological process hematogenically from one organ to another. It was also found that the dorsal surface of the rectum is the most blood-supplied, as opposed to the ventral one. The obtained data are necessary for veterinary surgeons to determine the most rational methods of surgical interventions in operations related to pelvic organs.","PeriodicalId":428779,"journal":{"name":"Issues of Legal Regulation in Veterinary Medicine","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114408890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Lobal structure of the liver of the black samble pushkin breed","authors":"M. Shchipakin, D. Vasiliev, S. Glushonok","doi":"10.52419/issn2782-6252.2022.2.135","DOIUrl":"https://doi.org/10.52419/issn2782-6252.2022.2.135","url":null,"abstract":"ed in fur farming in the Russian Federation. In the literature, there are often materials on the anatomy of representatives of the mustelid family, such as the American mink, American polecat, American marten and others. Along with this, in modern morphology there is practically no information about the anatomy of sables, and in particular about the black Pushkin breed. The purpose of this study is to study the structural features of the liver in the Pushkin black sable breed, as well as to determine its morphometric characteristics in the studied animals. During the study, the corpses of the black sable Pushkin breed were used. In total, fifteen corpses of sables of the black Pushkin breed aged two to three years were examined. To study the structural features of the liver, traditional anatomical techniques were used. According to the results of the study, it was found that the sable of the black Pushkin breed has six lobes, since the average lobe has no independent significance in the anatomy of the liver; the most developed lobes of the liver are the right medial lobe and the left lateral, and the least developed square and caudate lobes.","PeriodicalId":428779,"journal":{"name":"Issues of Legal Regulation in Veterinary Medicine","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116343767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparative morphology of gill apparatus of common carp (Cyprinus carpio) and African catfish (Clarias gariepinus)","authors":"N. A. Stepanova, D. Safronov","doi":"10.52419/issn2782-6252.2022.2.130","DOIUrl":"https://doi.org/10.52419/issn2782-6252.2022.2.130","url":null,"abstract":"Common carp and African catfish belong to the Cyprinidae (Cypriniformes) and Catfish (Siluriformes) orders, respectively. They are characterized by a different habitat, as a result of which the structure of the gill apparatus has a number of features [3]. The article describes the macroscopic and microscopic morphology of the gills of the represented fish species. Each of them had four complete pairs of gills, and the fifth was rudimentary without gill filaments. The gill rakers of carp tended to be short and widely spaced compared to the long and thin rakers of catfish. The gill filaments of the carp were longer than those of the African catfish, indicating a larger area of the gill surface in the former species. All gill regions, as seen from light microscopy, are covered with mucous epithelium.","PeriodicalId":428779,"journal":{"name":"Issues of Legal Regulation in Veterinary Medicine","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129915542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Influence of the essential oil of thyme and the introduction of yeast mushrooms from the genus sacharomycetes on the organism of the rainbow trout","authors":"O. Popova","doi":"10.52419/issn2782-6252.2022.2.113","DOIUrl":"https://doi.org/10.52419/issn2782-6252.2022.2.113","url":null,"abstract":"The aim of this study was to investigate the combined effects of thyme essential oil and Saccharomycetes on blood counts and body productivity in rainbow trout. The fishery complex demonstrates positive dynamics in all key economic indicators. The use of feed additives in a complete fish diet is one such practical solution that not only improves nutritional efficiency, but also helps to reduce stress and control diseases by strengthening the immune system of fish. The study was carried out in the fish farm of the Leningrad region, on rainbow trout. 3 groups were taken, 5 in each group. The control group received only the main diet, only Saccharomycetes were introduced to the diet of group 2, and thyme essential oil was added to the main diet of group 3 in addition to Saccharomycetes. The mixture was administered at a dose of 2% of the norm was the essential oil of thyme, and 0.1% of saccharomycetes. Physico-chemical indicators of water, including temperature, were at the same level in all groups, within the physiological norm. The experiment lasted 30 days; at the end of the experiment, blood was taken to study blood parameters. Statistical analysis was carried out using STATISTICA 6 software.The present study showed that the combination of Saccharomycetes and thyme essential oil promotes the full development of fish and the efficient use of feed. Can theoretically successfully increase growth rates, survival rates, and digestive enzymes in farmed rainbow trout. Also, their inclusion in the diet can be useful for enhancing immune parameters and antioxidant responses and, therefore, can be included in the diet of this fish species as a safe feed additive.","PeriodicalId":428779,"journal":{"name":"Issues of Legal Regulation in Veterinary Medicine","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130811952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dynamics of T-lymphocyte lymphokine production from piglets with bronchopneumonia in response to non -specific mitogens in vitro","authors":"O. Kryachko","doi":"10.52419/issn2782-6252.2022.2.127","DOIUrl":"https://doi.org/10.52419/issn2782-6252.2022.2.127","url":null,"abstract":"The aim of the study was to evaluate the production of lymphokines by piglets' T-lymphocytes during the disease of acute nonspecific bronchopneumonia, in response to nonspecific mitogens in vitro. Blood from 3.5-month–old piglets of a large white breed was used as a model for the study (group 1 - patients with clinical signs of lung disease - underwent antibiotic and vitamin therapy in appropriate doses, group 2 - clinically healthy - intact were under observation). The functional activity of T-lymphocytes was evaluated in vitro, the level of lymphokine production in the reaction of inhibition of leukocyte migration (RTML) with nonspecific mitogens of T-lifmocytes - concanavalin A (Con A) and phytohemagglutinin (PHA) was taken into account before treatment and 7, 14 and 21 days after its initiation. In the first days of the disease, it was found that lymphocytes isolated from sick animals react differently to the introduction of concanavalin A and phytohemagglutinin cells into the culture – the reaction in response to PHA is more pronounced. The percentage of inhibition of leukocyte migration in response to the introduction of PHA and KonA was the lowest for the entire study period on the 7th day of treatment, which characterized the highest production of lymphokines in response to both mitogens. From the 14th day, the production of lymphokines in both cases was not as active. This is due to the fact that at the beginning of the inflammatory process, T-lymphocytes actively produced lymphokines that inhibit the migration of leukocytes, which should contribute to the formation of a focus of inflammation and limit secondary alterations. After antibiotic treatment and relief of the inflammatory process, chemotactic stimuli acquire the opposite orientation, this contributes to the dispersion of immunocompetent cells from the focus of inflammation and is necessary for the adequate course of proliferative processes in the lung tissue.","PeriodicalId":428779,"journal":{"name":"Issues of Legal Regulation in Veterinary Medicine","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115354280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The impact of climate change on human settlement and adaptation in the north","authors":"A. O. Aristova, V. Gaponova","doi":"10.52419/issn2782-6252.2022.2.107","DOIUrl":"https://doi.org/10.52419/issn2782-6252.2022.2.107","url":null,"abstract":"The nature of the Arctic creates unique conditions in which, in order to adapt and develop new cities, a person needs to take into account the experience of previously created northern economic regions. The article considers the main natural factors affecting the construction and urbanization of cities, assesses the prospects for the development of settlements beyond the Arctic Circle and analyzes environmental factors affecting the creation of a network of cities with a population engaged in oil-producing activities on a permanent basis.","PeriodicalId":428779,"journal":{"name":"Issues of Legal Regulation in Veterinary Medicine","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116910243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Prospects of using luminescent methods to control the process of electoreagent cleaning","authors":"A. Patsovsky, T. P. Lutsko, A. Baryshev","doi":"10.52419/issn2782-6252.2022.2.110","DOIUrl":"https://doi.org/10.52419/issn2782-6252.2022.2.110","url":null,"abstract":"To ensure the environmental safety of industrial solutions, it is necessary to purify wastewater from heavy metal ions, suspended particles and high-molecular decomposition products of the bio-mass during chemical and microbiological processes, while observing all the necessary conditions for local purification and recovery of industrial technical liquids. The purpose of the development of such a system is to control the process of wastewater treatment at all stages of its electrical reagent treatment. The objects of control were wastewater and natural waters in the process of purification by the electoreagent method, and ozonolysis was chosen as one of the most promising methods in this direction.","PeriodicalId":428779,"journal":{"name":"Issues of Legal Regulation in Veterinary Medicine","volume":"2010 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127352338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Morphological features of the intestine of the common carp in the winter period","authors":"A. Goncharova, D. Safronov","doi":"10.52419/issn2782-6252.2022.2.118","DOIUrl":"https://doi.org/10.52419/issn2782-6252.2022.2.118","url":null,"abstract":"Fasting (short or long term) is an important factor influencing physiological changes in immunity, survival and growth. During starvation, the most important processes in fish are supported by the accumulated nutrients. Structural components of the gastrointestinal tract and associated organs respond differently to food deprivation. We found that fasting had a profound effect on intestinal histology, which ultimately led to malabsorption and transport. In particular, there was hyperplasia of goblet cells, a decrease in the height of prismatic epitheliocytes with degeneration of microvilli on their apical surface. In some situations, fusion of the intestinal folds was detected. It should be noted that this issue has been poorly studied in the available domestic literature.","PeriodicalId":428779,"journal":{"name":"Issues of Legal Regulation in Veterinary Medicine","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116041642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}