Clinical, morphological and biochemical signs of polymycotoxicosis in highly productive cows

2020 ◽  
pp. 14-17
Author(s):  
Irina A. Shkuratova ◽  
◽  
Lyudmila I. Drozdova ◽  
Aleksander I. Belousov ◽  

Mycotoxicological monitoring of forages shows that the problem of mycotoxicosis has been relevant for several decades. Minimal doses of mycotoxins in feed lead to a decrease in milk productivity, increased sensitivity to infectious and non-infectious diseases. When several mycotoxins enter the body simultaneously, a synergistic effect develops, causing a significant increase in toxicity. Feed contaminated with several types of fungi and their toxins is dangerous for dairy cattle. It was found that the feed mixture contained the types of associations of Aspergillus spp. fungi + Fusarium; Aspergillus spp. + Penicillium spp. + Mucor spp; Fusarium + Penicillium; Mucor spp. + Fusarium + Ustilaginales. Pathogenetic features of metabolic and morphological changes in highly productive cows with polymycotoxicosis were studied. Feeding food contaminated with various metabolites of mold fungi leads to the development of signs of chronic toxemia in animals. Clinical manifestations are the development of diarrhea and dehydration, with a decrease in milk productivity. Metabolic disorders feature the development of an inflammatory process, metabolic acidosis, hyperfermentonemia, with an increase in the amount of creatinine and urea in the blood serum. Metabolic signs indicate the development of hepatorenal syndrome due to structural disorders of the liver and kidneys. Histological signs of polymicotoxicosis are intracapillary and hemorrhagic glomerulonephritis, hepatocyte micronecrosis, and proliferation of connective tissue stroma cells, which leads to the development of atrophic cirrhosis in the interstitial and circular phases.

Author(s):  
N.F. Eryzhenskaya

Diseases associated with the violation of metabolic processes in the body of cows in the perinatal period are widespread and cause great economic damage. The transition to an industrial basis has increased the severity of this problem. On dairy complexes, violations of many types of metabolism in animals are observed simultaneously, since a change in one entails disorders of others. These disorders develop within the framework of unified mechanisms of inclusion of adaptive processes, when, along with specific syndromes of the disease, there are signs of a general non-specific reaction of the body, which is universal. Diseases occur with a violation of all types of metabolism with a long, latent, asymptomatic course and in the future with the manifestation of nosologically differentiated forms of pathology. The degree of clinical manifestations of metabolic disorders in cattle is different depending on the nature and duration of the imbalance of nutrients, deficiency or excess of some nutrients or complex, the level of milk productivity of animals, conditions, actions, environmental factors, etc. In case of metabolic disorders in cows, fatness, productivity, reproductive ability, resistance and reactivity in response to environmental factors, including various diseases, are reduced. To reduce the severity of this problem, a metabolic composition based on succinic acid with introductory components is proposed as a therapeutic and prophylactic agent that can be included in the metabolic processes of the body and have an effective effect on the metabolism, milk productivity and reproductive function of cows in the perinatal period.


2020 ◽  
Vol 9 (3) ◽  
pp. 152-157
Author(s):  
Rinat R. Fatkullin ◽  
Aikumis K. Saken

Abnormal environmental factors contribute to advanced behavioral strategies in higher regulatory centers as well as to the assessment of possible morphofunctional and energy transformations in the body. Animals, especially birds, which are characterized by curiosity, are highly sensitive to the presence of environmental pollution, since they interact with elements of the environment and surroundings. Contamination of broiler products can also be caused by contaminated soil and dust, unknown sources of persistent heavy metals and organic pollutants that are unknown to the public, such as car wreckage, household waste, and so on. In general, adverse factors that regularly affect small details do not require significant changes in the body at the initial stage, mainly affect non-specific mechanisms that lead to long-term activation. The paper contains significant work based on the analysis of microbiogenic links in the trophic chain, but the formation of processes associated with metabolic disorders from the development of trace elements to clinical manifestations is still insufficiently studied, so it is difficult to diagnose and treat previously unknown animal diseases in veterinary practice.


Author(s):  
V.V. Krupitsyn ◽  
◽  
V.I. Kotarev ◽  

The main breeds of cows bred in the Voronezh region are red-mottled, Simmental, Holstein, both domestic and imported selection. The milk productivity of the red-mottled breed is 6247.9 kg, the duration of production use of ncp is 2.9 lactation; the Simmental ncpis 6952.9 kg and ncp is 3.21, and the Holstein ncp is 8845.4 kg and ncp is 1.85, respectively. Imported Simmental and Holstein cattle have a high potential for milk productivity, but the longevity period with the technology of loose keeping is very short. The main reasons for culling imported cattle are transport injuries, metabolic disorders, respiratory diseases, digestive diseases, breast diseases, hooves in general due to adaptation of body and the influence of production paratypical factors. With the technology of loose keeping of dairy herds as a result of intensive load, the main reasons for culling are udder diseases of ncp-19.5 %, diseases of the reproductive organs of ncp-25.1%, and limbs of ncp – 18.5 %. In conditions of year-round tie-up housing of cows, as a result of hypodynamia, metabolic disorders occur. Diseases of reproductive organs make up ncp-32.8%, as well as diseases of distal extremities of ncp-22.3. In a number of farms, protein overfeed is noted, as a result of which the body experiences an intense load, leading to a number of animal diseases. As a result, it is necessary to recommend and follow the technological principles of providing the necessary hygienic conditions that would be close to the physiological or natural requirements of animal’s body to ensure the efficiency of raw milk production.


2021 ◽  
Vol 6 (1) ◽  
pp. 25-31
Author(s):  
O. V. Kihtenko ◽  
◽  
H. I. Hubina-Vakulik ◽  
O. M. Pliten ◽  
S. M. Potapov

The biggest losses from the entire period of childhood fall on the neonatal period of development of ontogenesis. Clinical manifestations of diseases and morphofunctional disorders that occur during intrauterine development or during childbirth play an important role in the formation of the child's health and are recorded during the neonatal period of development. The more accurate is the diagnosis of pathology in this age range, the more correct and effective will be the measures of treatment and rehabilitation. This will reduce to a minimum social loss and limit the formation of chronic pathology and deviations in the physical, mental and intellectual development of children. The hematoencephalic barrier is the most important dynamic structure that it is responsible for brain homeostasis and takes an active participation in the body tissues resistance to the harmful effects of perinatal hypoxic stress alongside with other structural and functional formations of the central nervous system. The purpose of the work was to identify characteristic morphological and functional changes in the components of the hematoencephalic barrier of newborns who underwent to perinatal hypoxia at the subcellular level using submicroscopic examination. Results and discussion. The study results present a fragment of a large work which deals with pathomorphological and compensatory changes in the components of the hematoencephalic barrier in deceased newborns. The latter were carried in conditions of chronic intrauterine hypoxia and undergoing acute ante-, intranatal hypoxia were studied using ordinary histology, morphometry, immunohistochemical reactions. Submicroscopic examination allowed deepening the level of surveillance. The morphological changes in newborns who were carried under conditions of chronic intrauterine hypoxia, they underwent acute intrauterine hypoxia and died in the acute period of hypoxic-ischemic encephalopathy. These newborns can be divided into two groups. The first group: pathological changes which were the result of acute asphyxia – edema, death and desquamation of endothelial cells as well as damage of gliacytes and their further death both as a result of cytotoxic edema (edema and lysis) and due to shrinkage of the nucleus with subsequent karyorrhexis. The presence of apoptotic changes in pericytes was registered. The second group of pathomorphological changes had signs which were formed under the «chronic» influence of the damaging factor (in this study it was chronic intrauterine hypoxia): general decrease of the microcirculatory bed in the volume; significant decrease in the number of capillaries with a «sleeve» of astrocytes processes; damage of the basement membranes of the capillaries (uneven thickness, blurring, bilayering)


2021 ◽  
Vol 2 ◽  
pp. 7-14
Author(s):  
V.G. Syusyuka ◽  
M.Y. Sergienko ◽  
G.I. Makurina ◽  
O.A. Yershova ◽  
A.S. Chornenka

The article presents data from guidelines, consensus and literature sources on the modern point of view regarding to the pathogenesis, diagnosis and principles of treatment of women with polycystic ovary syndrome. It is a systemic pathology that occurs in women of any age, from puberty to menopause, involving almost all systems of the body in the process. The work focuses on the variability of the clinical manifestations of this syndrome, which is characterized by menstrual irregularities, infertility, polycystic changes in the ovaries according to ultrasound, dermatopathies and metabolic disorders. The main purpose of diagnosing the syndrome is to determine the severity of clinical manifestations, the sources and pathogenesis of androgen hyperproduction, the impact on reproductive function, as well as the assessment of metabolic and cardiovascular risks. Given the multifaceted clinical manifestations, the management of women with polycystic ovary syndrome requires a multidisciplinary approach, and pathogenetic therapy should include normalization of the hormonal profile and menstrual function, treatment of dermatopathies, correction of metabolic disorders, treatment of infertility (if pregnancy is relevant), etc.


Author(s):  
E.P. Dolgov ◽  
◽  
A.A. Abramov ◽  
E.V. Kuzminova ◽  
E.V. Rogaleva ◽  
...  

The article presents the data on the study of the influence of mycotoxins combination (T-2 toxin at the concentration of 0.095 mg/kg and aflatoxin B1 in the concentration of 0.019 mg/kg) on the body of quails and the results of pharmacocorrection of toxicosis with a complex consisting of beet pulp and lecithin. Structural changes in the intestines of quais at fodder mycotoxicosis are described. The use of antitoxic feed additives in poultry led to a weakening of the action of xenobiotics, which was confirmed by an increase in the safety of poultry and increase in body weight of quails, a decrease in the clinical manifestations of intoxication, as well as in positive changes in the structure of the intestine of the poultry during histological examination.


Author(s):  
M. S. Bugaeva ◽  
O. I. Bondarev ◽  
N. N. Mikhailova ◽  
L. G. Gorokhova

Introduction. The impact on the body of such factors of the production environment as coal-rock dust and fluorine compounds leads to certain shift s in strict indicators of homeostasis at the system level. Maintaining the relative constancy of the internal environment of the body is provided by the functional consistency of all organs and systems, the leading of which is the liver. Organ repair plays a crucial role in restoring the structure of genetic material and maintaining normal cell viability. When this mechanism is damaged, the compensatory capabilities of the organ are disrupted, homeostasis is disrupted at the cellular and organizational levels, and the development of the main pathological processes is noted.The aim of the study is to compare the morphological mechanisms of maintaining structural homeostasis of the liver in the dynamics of the impact on the body of coal-rock dust and sodium fluoride.Materials and methods. Experimental studies were conducted on adult white male laboratory rats. Features of morphological mechanisms for maintaining structural homeostasis of the liver in the dynamics of exposure to coal-rock dust and sodium fluoride were studied on experimental models of pneumoconiosis and fluoride intoxication. For histological examination in experimental animals, liver sampling was performed after 1, 3, 6, 9, 12 weeks of the experiment.Results. The specificity of morphological changes in the liver depending on the harmful production factor was revealed. It is shown that chronic exposure to coal-rock dust and sodium fluoride is characterized by the development of similar morphological changes in the liver and its vessels from the predominance of the initial compensatory-adaptive to pronounced violations of the stromal and parenchymal components. Long-term inhalation of coal-rock dust at 1–3 weeks of seeding triggers adaptive mechanisms in the liver in the form of increased functional activity of cells, formation of double-core hepatocytes, activation of immunocompetent cells and endotheliocytes, ensuring the preservation of the parenchyma and the general morphostructure of the organ until the 12th week of the experiment. Exposure to sodium fluoride leads to early disruption of liver compensatory mechanisms and the development of dystrophic changes in the parenchyma with the formation of necrosis foci as early as the 6th week of the experiment.Conclusions. The study of mechanisms for compensating the liver structure in conditions of long-term exposure to coal-rock dust and sodium fluoride, as well as processes that indicate their failure, and the timing of their occurrence, is of theoretical and practical importance for developing recommendations for the timely prevention and correction of pathological conditions developing in employees of the aluminum and coal industry.The authors declare no conflict of interests.


Author(s):  
L. Yarmots ◽  
G. Yarmots ◽  
A. Belenkaya

For ruminants, especially high-yielding animals in addition to the complete supply of animals with protein, its digestibility in the rumen is important. With low protein digestibility in the rumen, the released ammonia will be more effectively used by the rumen microflora, and the undigestible protein in the subsequent sections of the digestive tract can serve as a source of amino acids for the body. The use of concentrate mixtures with the inclusion of local, affordable and cheaper grain feeds, in particular a high-energy and protein ingredient- rapeseed presscake makes it possible to increase the milk productivity of cows throughout lactation. These presscakes are well balanced in their amino acid composition and belong to feeds whose protein has a low degree of digestibility in the rumen. The purpose of the researches was to study the digestibility of nutrients and milk productivity of cows when using the concentrate mixture with the inclusion of rapeseed presscake. In the scientific and economic experiment has been carried out on lactating cows, where the cows of the experimental group in the concentrate mixture of peas has been replaced with rapeseed presscake the digestibility of nutrients in the ration, energy metabolism and milk productivity have been studied. Studies have shown that almost all the nutrients were significantly better digested by the animals of the experimental group. Energy in milk was more allocated by cows of the experimental group by 6,29 MJ. From cows of the experimental group for 100 and 305 days of lactation has been obtained more milk by 6,27 and 7,06 %, respectively, than from control herdmates. The biochemical parameters of blood were within the limits of the physiological norm in animals of both groups. Thus, the replacement of peas with rapeseed presscake in the concentrate mixture did not have a negative influence on the metabolic processes and helped to increase the milk productivity of cows.


2021 ◽  
pp. 112067212199404
Author(s):  
He Yu ◽  
Xinyu Ma ◽  
Nianting Tong ◽  
Zhanyu Zhou ◽  
Yu Zhang

Importance: This is the first reported case of acute exudative paraneoplastic polymorphous vitelliform maculopathy (AEPPVM) in a patient with thymoma, accompanied by myasthenia gravis (MG) and polymyositis. Objective: To examine the pathogenesis of ocular disease in a patient with yolk-like fundus lesions and thymoma, MG, and polymyositis throughout the body based on clinical manifestations, diagnosis, differential diagnosis, and genetic testing to determine the appropriate treatment course. Design, setting, and participants: We describe a 63-year-old woman who presented to our tertiary medical center with a 3-month history of reduced visual acuity in both eyes. Concurrent fundoscopy revealed a 2.0 × 1.7-mm, unifocal, yellow, round vitelliform lesion in the macular region, surrounded by multifocal, shallow, yellow-white pockets of subretinal fluid. The patient’s medical history included thymoma with thymectomy treatment, combined with pericardiectomy and postoperative radiotherapy (20 years prior), followed by a diagnosis of MG with suspect thymic association (15 years prior). Three years prior, the patient had been diagnosed with polymyositis related to paraneoplastic syndrome; 1 year prior, she had been examined for pleural thickening due to suspected metastatic tumor. Results: On her most recent follow-up visit at 3 months after initial diagnosis, the patient was stable with no clinically significant progression in ocular or systemic conditions.


Author(s):  
Shatishraj Jothee ◽  
Mohamed Swarhib Shafie ◽  
Faridah Mohd Nor

Abstract Background Previous reported cases on excited delirium syndrome studied on the common clinical manifestations of the syndrome. The usual forensics implication for the syndrome is that death commonly is associated with restraint procedures by law enforcement agencies; however, not many cases reported highlights the difficulties in attributing a violent scene of death to the syndrome. Case presentation We present a case of a partially naked body found in an apartment unit under suspicious circumstances with multiple injuries. The scene of death was violent, and the body was found with blood wiped all over the floor and walls. Investigators believed a violent crime had occurred, and a suspect was reprimanded. However, upon autopsy, it was found that all injuries were superficially inflicted and were unlikely to have been part of an act of commission or caused his death. Internal examination found no remarkable pathology. Toxicology revealed a presence of psychostimulants, that is, methamphetamine, MDMA, and ethyl alcohol. Reconstruction of events by the witness, who was initially suspected of the ‘murder’, revealed that the injuries and his death could likely be explained by an episode of excited delirium. Conclusion The case highlights the challenges faced when attributing excited delirium syndrome as a cause of death. The syndrome can present with injuries from aggressive or bizarre behaviour, coupled with the destruction of property, which may confuse investigators on the possible manner of death.


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