16.00.00 Veterinary sciences
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SECONDARY IMMUNODEFICIENCIES OF SMALL PETS AND THEIR CORRECTION USING MURAMYLDIPEPTIDE
DescriptionThe revolutionary discoveries of recent years in immunology has proved that protection from infections and biological aggression leading role played by innate immunity, which leads to the launch and subsequent work of specific adaptive immunity. Today, it is well-known that almost any pathology of the animal affects the immune system and creates an immune imbalance, leading to development of chronic pathological process, frequent relapses and to the development of different kind of complications. Secondary immunodeficiency states are widely distributed and differ in many etiological factors age, nutritional, medicinal, infectious and neoplastic nature, which leads to increased susceptibility of animal to various раthogenic factors, the weakening of the body. Awareness of the role of immunological disorders in the pathogenesis of a number of diseases has led to the need use in veterinary medicines that are aimed to influence on the immune system of the animal at the known molecular mechanism, to combine safety with high clinical efficacy. In this respect, a promising immunomodulators of microbial origin, due to the knowledge of the recognition mechanisms of the innate immune system such as bacteria as a whole, separate structural units, including mini-optimal biologically active fragments. This review is dedicated to one of the immunomodulator of microbial origin – which is an analog of biologically active fragment of muramyldipeptide of bacterial cell walls ‒ glucosaminylmuramildipeptide (GMDP), which is the active substance of registrated in Russia drug with the trade name Glicopin for use in veterinary practice. The drug showed high efficiency when used in cats, dogs, rodents, ferrets with infections of bacterial and viral etiology; cancer; with the aim of improving the natural resistance of the organism of young and old animals; enhance the effectiveness of vaccination in immunocompromised animals; postvaccine reduce complications; reduce stress financial position, such as during transportation and various veterinary treatments; injuries and on-line intervention (for stimulation of repair processes and tissue regeneration); prevention of immunodeficiency in newborn animals; the reduction of postpartum involutional processes in the uterus. Analysis of literature data allows us to consider an important outcome of immunologiс discoveries of recent years is the change of views on the question of the treatment of infectious diseases and the role of drugs as activators of innate immunity, among which an important role is played by a synthetic analogue of muramyldipeptide (GMDP) is a drug with a known molecular mechanism of action
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Description
The use of intensive milk production technologies in practice, nonobservance of the principles of feeding and keeping animals leads to a decrease in the level of compensatory-regenerative processes in the body, violation of general and specific metabolic reactions, emergence of a number of pathological conditions, and, primarily, hepatopathies leading to a decrease in the productivity of dairy cattle, to the birth of unviable young animals and to the impossibility of their further exploitation. Therefore, on the background of early diagnosis of violations of the liver it is necessary to conduct adequate pharmacoprophylaxis, which prevents further development of hepatopathies with the help of hepatoprotectors. These preparations include a new injectable one – livazen, the mechanism of action of which works due to its antioxidant and membrane-stabilizing action. The preparation has a lipotropic effect, favorably affects the antitoxic and pigmentary function of liver, and increases resistance to hypoxia and various kinds of intoxication. Research conducted to study its effect in the system of prophylactic measures of hepatosis in sterile cows showed that on the background of the use of lavazen there was a significant increase in total protein by 16,6% and increase in albumins - by 13,8%. The level of γ-globulins, on the contrary, decreased by 20,9%. The study of the preparation had a normalizing effect on lipid metabolism, which was manifested by an increase in the concentration of triglycerides in 3,1 times and increase in cholesterol by 24,7%. An increase in the concentration of calcium by 14,5% was also found out. The use of livazen allowed to ensure a tendency towards a decrease in enzyme activity (according to AST - by 6,9%, by ALT - by 24,4%, according to alkaline phosphatase - by 11,6%), in contrast to control animals whose aspartate aminotransferase increased by 11,3% from the initial; ultrasonography of liver of cows confirmed the expressed effectiveness of the pharmacoprophylaxis
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Description
One of the reasons extensions acute intestinal diseases in newborn calves and piglets is absence at them of formed immune system and colonization resistance. For this reason, their intestine often occupies relative pathogenic microorganisms, which in the subsequent cause diarrheal diseases. The characteristic feature of the last time is the fact that these diseases have the associated disposition and composition of association can be the most various but not only biological objects (for calves and piglets), and also territorial borders. The goal of this work was in comparative study of the structure microorganisms, which were isolated from newborn calves and piglets at acute intestinal diseases in Krasnodar territory and the establishment of the dominant species. During the bacteriologic examination of pathological material was detach and finger 1299 isolate calves and 476 from piglets which was found to belonged to 6 families: Enterobacteriaceae, Streptococcaceae, Enterococcaceae, Pseudomonadaceae, Alcaligenaceae, Alteromonadaceae. Studies have shown that dominant logic value in nosological profile of the allocated bacteria belongs to enterobacterium, enterococcus, streptococcus, the share of which in the general pool of isolates has made 70,1%, 15,9% and 11,1%, respectively. At the same time among the enterobacterium detached as from calves, and pigs, the prevailing species was E. coli (55,6%), streptococcus – S. bovis (24,9%), enterococcus – E. faecium and E. faecalis (88,3%). Meanwhile, along with the general character of frequency separation of certain types of bacteria, also their specific preference is set. That why from calves there were more often selected enterobacter, citrobacter, kluyvera, E. faecalis, S. cricetus, S. mitior, S. parauberis and P. aeruginosa. Whereas from pigs more often were allocated protei, providencia, shigella, E. mundtii, E. casseliflavus, S. acidominimus, S. oralis, S. pneumoniae, S. vestibularis и Alcaligenes fecalis than from pigs
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Description
This report represents the results of study of ASF clinical signs and pathological changes in dead pigs infected with an ASF virus isolated from wild boars in 2016. The ASF virus circulating among wild boars in the Central and the North-Western Districts was found to be virulent, and causes the death of animals in terms characteristic of acute and subacute forms with no development of a full symptom complex of the disease
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MORPHO-FUNCTIONAL STATE OF BROILER CHICKENS ADRENAL CAPSULES UNDER DIFFERENT METHODS OF MANAGEMENT
DescriptionAn impact analysis of abiotic factors of ecosystems on the metabolic processes of the broiler chicken organism under various methods of poultry operation has been carried out. The analysis results confirm that the enorganic biochemical processes are under the influence of the environment, and any changes in its condition cause the development of response reactions of the organism at the biochemical level. The source of control of the relative constancy of the milieu interieur is the interaction of tropic and effector hormones. Adrenocorticotropic hormone and cortisol are the main hormones of adaptation. The activity of the adrenal capsules turns to be an effector peripheral link of the reflex chain of the adaptive reaction of the organism. Adrenal hormones have a direct impact on tissue metabolism. The following aspects have been taken into consideration: technological growing conditions, production parameters, morphological blood values of chickens of different ages, quantitative content of adrenocorticotropic hormone and corticoid in the blood, morphology of the adrenal capsules. The abiotic factors of the cage management system contribute to an increase in the concentration of corticoid in the blood of broiler chickens, compared with this value of the broilers grown under the floor management