Department Of Veterinary Research Articles

Incidence of animal bite and risk for rabies in Kaduna State, Nigeria – public health implication

This study focused on the incidence of animal bite (n=50) reported in Kaduna State, Nigeria, between January and April 2024, focusing on factors such as the type of biting animal, sex of the victims, geographical distribution, temporal trends, and the nature of the bites. The data were sourced from weekly reports submitted by Area Veterinary Officers to the Department of Veterinary and Livestock Services and were supplemented with rabies test results from the National Veterinary Research Institute (NVRI), Vom, Plateau State. Results revealed that dogs were responsible for 96% of the biting incidents, while cats accounted for 4%. Male victims were more frequently bitten, and the highest incidence was reported in Kaduna Central (Zone 2) with 44% and Zaria being the lowest (12%). Most incidents occurred in February (38%) and March (34%). Provoked bites constituted 52% of the cases, and 86% of the dogs involved were not vaccinated against rabies. Rabies test results showed that 94% were negative, while 6% tested positive, all of which were reported in Kaduna South (Zone 3). A significant association (p=0.034) between senatorial zones and rabies test results was observed, indicating a need for targeted public health interventions in specific zones. The study underscores the need for improving vaccination coverage and implementing educational campaigns to mitigate risk of rabies and reduce the incidence of animal bites. Enhanced public health strategies, community engagement and one health approach should be implemented to address the multifaceted challenges posed by dog bites and rabies in Kaduna State.

ВЛИЯНИЕ МАЛООБЪЁМНОЙ АУТОСЕРОПЕРФУЗИИ НА ТЕЧЕНИЕ ОЖОГОВ ПРИ ТЕРМОКАУТЕРИЗАЦИИ РОГОВЫХ ЗАЧАТКОВ У ТЕЛЯТ

Many farms in the Russian Federation practice dehorning of calves at the age of 3-4 weeks to reduce injuries and increase productivity at a later age using various methods using symptomatic treatment after dehorning. Scientific research on the use of autoserum from Holstein calves of 3-4 weeks of age with burn injury during electrothermocauterization of horn rudiments to suppress autoimmune reactions in these same animals in order to most quickly remove sensitization of the body, enhance tissue granulation processes and, accordingly, reduce the time of epithelization of burn defects during thermal cauterization was carried out in the conditions of the agricultural dairy enterprise APC «Chernovskoy» of the Chelyabinsk region and the Department of Infectious Diseases and Veterinary and Sanitary Expertise of the South Ural State Agrarian University. To conduct the research, two groups of calves were formed, which were selected after thermal cauterization in farm conditions in the amount of 24 heads with approximately the same weight and clinical condition of burn injury. In the experimental group of calves, the serum obtained from them was used by intradermal injection into the area of the prescapular nodes in dosages of 0.2 ml per head, three times. During the experiment, it was found that the use of autoserum after electrothermocauterization of horn rudiments in calves 3-4 weeks of age reduced the time of epithelization of burn defects by 24 hours in a comparative aspect with the control group of calves, and clinical recovery of the experimental group of calves occurred earlier by 48-72 hours in contrast to the control group of calves.

On the Issue of Cattle Necrobacteriosis in Lenkoran Farms

The study of various epizootological conditions for necrobacteriosis and the factors that cause it is relevant. The research was carried out on the basis of the Department of Veterinary and Agricultural Disciplines of Lenkoran State University in disadvantaged livestock farms. Microscopic studies have established that the main causative agent of hoof disease in cows is Bacterium necrophorum. As experimental observations have shown, recovered animals remain carriers of the pathogen for a long time. In an experiment on two experimental subjects and one control group, it was proven that for the manifestation of clinical signs and relapses of necrobacteriosis, a necessary condition was an increase in skin looseness, making it susceptible to Fusobacterium necrophorum. This is possible with high humidity and injury, as well as in the absence of preventive treatments for the hooves. Swelling of the corolla associated with aseptic osteitis manifested itself against the background of a concentrated type of feeding. Such changes in the hooves are characteristic of an increased intake of histamine into the body, which is abundant in the shells of grains. For treatment, the use of the antibacterial drug Amoxicillin-150, at the rate of 1 ml per 10 kg of live weight, once intramuscularly or subcutaneously, is advisable and cost-effective.

Эффективность применения кормовых добавок в птицеводстве

This article presents data on the use of feed additives in the diet of laying hens based on a 55 % water-oil emulsion of fish oil and flaxseed oil, produced by Firm A-BIO LLC, Moscow. The experimental part of the work was carried out in the vivarium of the Department of Parasitology and Veterinary and Sanitary Expertise, in the experiment we used laying hens at 120 days of age purchased from Mayskie Prostori LLC, the birds were kept in a three-tier cage with six heads per tier, fed and watered freely, used PK1 compound feed for breeding laying hens 21–47 weeks in accordance with GOST 18221-98. The use of feed additives based on a 55 % water-oil emulsion of fish oil and flaxseed oil in the diet of laying hens contributed to an increase in the amount of essential amino acids in the first experimental group by 1.02 % and in the second, experimental group by 0,72 %, essential amino acids by 2,0 % in the first experimental group and by 1,7 % in the second experimental group in relation to the control. We noted an increase in the weight of one egg in the experimental groups in the first experimental group by 5,2 % and in the second experimental group by 3,5 % relative to the control group; we also noted an increase in the weight of eggs without shell in the first experimental group by 4,3 % and in the second experimental group by 4,7 % compared to the control. According to the results of the tasting assessment of eggs, we did not notice any foreign odor or taste in chicken eggs that were fed with a water-oil emulsion of fish oil; according to the tasting assessment, eggs from all groups were rated on a 5,0 point scale.

Гистологические показатели мышц цыплят-бройлеров при применении в рационе кормовых добавок

The article presents the results of studying the effect of feed additives «HitAcid» and «Veleguard BG» on the histological parameters of the muscles of broiler chickens of the Ross-308 cross. The study was conducted at the Department of Parasitology and Veterinary and Sanitary Expertise of the Federal State Budgetary Educational Institution of Higher Education «Moscow State Academy of Veterinary Medicine and Biotechnology – MVA named after K. I. Skryabin». During the study, it was found that the use of additives «HitAcid» and «Veleguard BG» stimulate the set of live weight of broiler chickens, and show an increase in the set of muscle mass of carcasses. Indicators of the thickness of muscle fibers and bundles of muscle fibers of the quadriceps femoris and superficial pectoral muscle of broiler chickens of the experimental groups exceed those of the control group. In a comparative assessment of the micromorphometric parameters of the studied muscles, the greatest thickness of muscle fibers and bundles of muscle fibers was noted in the experimental group «HitAcid». The data obtained indicate the expediency of using food additives based on organic acids in the diet of broiler chickens.

Monitoring of the epizootic situation of tick infestation in the territory of Stavropol

This problem is also relevant for urbanized cases, especially for the southern regions of the country, where there are cases of spread of ticks. Research on the basis of the Department of Parasitology and Veterinary and Sanitary Expertise, Anatomy and Pathology named after prof. S. N. Nikolsky and the Scientific, Diagnostic and Treatment Veterinary Center of the FGBOU HE "Stavropol State Agrarian University", as well as on the basis of the veterinary clinic IP Zaichenko "Veterinary Center named after. Pirogov. The object of the study was ixodid ticks of the genera Dermacentor and Ixodes, seized using a specialized trap, as well as seized with dogs in veterinary clinics during the acceptance. The study showed that two main types of ixodid ticks are widespread in the city of Stavropol: Demacentor and Ixodes. According to the results of research in 2022, female ticks of the genus Dermacentor identified 54% of the total number of adults, males - 46%. Female ticks of the genus Ixodes accounted for 61% of the total number of adults, males - 39%. The spring peak of activity in 2023 showed that female ticks of the genus Dermacentor were identified in the amount of 102 individuals, males - 78 individuals. Female ticks of the genus Ixodes accounted for 53% of the total number of adults, males - 47%. Thus, it has been established that the most widespread distribution of ixodid ticks takes place in the Industrial District of Stavropol, the distribution of alleys, forest zones and walking areas with the coverage of the species of ticks of the genus Dermacentor, is 79% of the total number of captured ectoparasites.

Influence of the probiotic “Bioseven” on the intestinal biocenose of white rats

The use of probiotics in animal husbandry ensures the maintenance of homeostasis of the digestive tract and prevents the development of factor infections in young animals – colibacteriosis, dyspepsia, and others, promotes the growth of animals with high survival rates. The main advantages of probiotics over chemotherapeutic drugs and antibiotics are that they are harmless to animal organism and are ecologically clean. In connection with the great attention paid to probiotics as ecologically safe drugs, the study of biological properties and the selection of bacterial strains, the most promising in the probiotic sense, are currently being intensified. This is the direction of the selection of species-specific strains for the intestinal biocenosis of a specific animal species, which have high colonization and antagonistic properties. Therefore, the development of the scientific basis for the creation of new probiotic preparations gave an impetus to their improvement and continued research in this direction. The aim of the work was to study the effect of the probiotic “Bioseven” on the intestinal biocenosis of white rats depending on the dose. Objectives of the study: to establish the toxicity of the drug “Bioseven” on laboratory animals with a single dose (“acute toxicity”) according to microbiological indicators; to investigate the toxicity of “Bioseven” on laboratory animals with long-term administration (“subacute toxicity”) according to microbiological indicators. Research work was carried out during 2022 at the department of veterinary and sanitary examination, hygiene of animal husbandry products and pathanatomy named after J. S. Zagaevskii. The toxicological characterization of the probiotic drug “Bioseven” (study of subacute and acute toxicity) was carried out under the conditions of the State Research Control Institute of Veterinary Medicines and Feed Additives (Laboratory of Pharmacology and Toxicology), (Lviv), the manufacturer of the drug was PP “BTU-CENTER” Ladyzhyn, Vinnytsia region. On the 31st day of use of the drug “Bioseven” (a feed additive with probiotic action) in a therapeutic dose, microorganisms of the genus Lactobacillus were sown 0.3 lg CFU/g more from the large intestine of experimental rats, microorganisms of the genus Bifidobacterium were sown at 0.5 lg CFU/g more than in the control group. The number of Candida fungi decreased by 0.6 lg CFU/g, and the total number of Escherichia coli – 0.2 lg CFU/g. When using the “Bioseven” probiotic in a 5-fold therapeutic dose, 0.5 lg CFU/g more microorganisms of the Lactobacillus genus and 0.6 lg CFU/g more Bifidobacterium microorganisms were sown from the large intestine of experimental rats than in the control group. At the same time, the number of Candida fungi decreased by 0.7 lg CFU/g, and the total number of Escherichia coli to 0.4 lg CFU/g. Under the conditions of use of the drug “Bioseven” in a 10-fold therapeutic dose, microorganisms of the genus Lactobacillus were sown from the large intestine of experimental rats, 0.9 lg CFU/g more, microorganisms of the genus Bifidobacterium 1.2 lg CFU/g more than in the control the group At the same time, the number of Candida fungi decreased by 1.1 lg CFU/g, and the total number of Escherichia coli by 0.8 lg CFU/g. Prospects for further research consist in the study of the impact of the biotic drug “Bioseven” on indicators of metabolic processes and productive qualities of farm animals.

Features of the microscopic structure of the intestinal wall in females of the ixodic tick of the genus Dermacentor during the feeding period

Ixodic ticks of the genus Dermacentor are parasitomorphic ticks that are carriers of a number of dangerous zooanthropozonoses, have a wide distribution. The intestine of an adult contains several types of cells: digesting, secretory, reserve and yolk cells. Digestive cells of types 1 and 2 are involved in the process of intracellular digestion and are the main components of the wall of the middle intestine. After insemination, yolk cells begin to form in the intestine, regulating the development of oocytes. The research was carried out on the basis of the Department of Parasitology and Veterinary and Sanitary Examination, Anatomy and Pathanatomy named after Prof. S. N. Nikolsky and at the Scientific Diagnostic and Therapeutic Veterinary Center of the Stavropol State Agrarian University, as well as on the basis of veterinary clinics of IP Zaichenko "Veterinary Center named after Pirogova". The object of the study was ixode mites, the material for the study was the digestive system of females, in particular the middle part of the intestine. Macroscopic examination of the nourished females of the Dermacentor tick helped to reveal that the intestine is an unpaired tubular organ divided into three sections: the esophagus, the sac-like meatus and the small intestine. With the arrival of blood, the intestine expands, as a result of which reserve cells begin to grow and differentiate into primary digestive ones. By the time egg laying begins, digestive cells of type I degenerate and are replaced by digestive cells of type II, differentiated from reserve cells. In nourished females, with an active process of vitellogenesis, the presence of specialized yolk cells is noted. Thus, with the beginning of the feeding period in ixodic mites, an increase in the intestine occurs due to the asynchronous development of digestive cells of type I and II. During digestion, secretory cells are focally exfoliated into the intestinal cavity filled with the host's blood, which characterizes the acceleration of the process of erythrocyte hemolysis. In the final phase of digestion, and the beginning of the vitellogenesis process, yolk cells are formed that regulate the development of oocytes.

Communication medium in theileriosis control: the factors that determine disease knowledge among smallholder farmers in Zimbabwe

Theileriosis is one of the most important tick-borne diseases that has been affecting farmers and thousands of livestock in Zimbabwe. The main government strategy to combat theileriosis is use of plunge dips with anti-tick chemicals at specified times; however, an increase in number of farmers caused a strain on government services resulting in disease outbreak. One of the key issues that have been highlighted by department of veterinary is the strain in communication and knowledge of the disease with the farmers. Hence, it is important to evaluate the communication between farmers and veterinary services and identify possible areas of strain. A field survey was conducted with 320 farmers in Mhondoro Ngezi, a district badly affected by theileriosis. Face-to-face interviews with smallholders and communal farmers were conducted between September and October 2021, and the data were analyzed using Stata 17. Communal farmers relied mainly on oral communication and had limited knowledge of theileriosis; therefore, dead cattle % was high among them. Though veterinary extension officers were the prime source of information, oral communication medium affected knowledge transferred. The results of this study recommend adoption of communication mediums that encourage retention, such as brochures and posters by veterinary extension services. The government may also partner with private players to ease pressure of increased farming population due to land reform.

Detection of adulteration of dairy products with vegetable fats using the method of luminescent analysis

This article describes a technique for detecting pesticides in poultry meat samples using thin layer chromatography. In the course of the study, the qualitative indicators of the content of pesticides in samples of poultry carcasses treated with the insecticide esbiotrin, used to prevent the reproduction of the red chicken mite among the poultry population, were determined. The studies were carried out at various time intervals from the moment the poultry was treated with the drug; quantitative determination of the content of the residual concentration of pesticides by thin-layer chromatography will reveal the feasibility and safety of using the active substance as an insecticide in poultry farming. Chromatographic studies were carried out on the basis of the Department of Veterinary and Sanitary Expertise of the SPbGUVM.During the experiment, 3 experimental groups of laying hens and 1 control group (10 animals each) were selected. The experimental groups were treated with a 0.001% solution of esbiotrin after which the birds were slaughtered 24, 72 and 120 hours after treatment. The selected samples were subjected to chromatographic examination to detect residual concentrations of synthetic pyrethroids.

Results of bacteriological tests of rainbow trout (<I>Onchorinchus mykiss</I>) bioassaywhen using the grug «SmartBiotic»

Fish and fish products are perishable products. Therefore, if the conditions of cultivation, preparation, storage and transportation are not observed, the risk of contamination of fish with microorganisms increases. In case of doubt about the degree of freshness of fish according to organoleptic indicators, laboratory tests are carried out, one of which is bacterioscopy of smears-prints of bioassays, used in cases of suspected contamination of fish with microorganisms. The evaluation of the results of the bacteriological study is carried out by the intensity of coloring and the number of cocci, sticks in the prepared smears-prints.Bacteriological tests of smears-prints of fish muscle tissue was carried out on the basis of the laboratory of the Department of Veterinary and Sanitary Examination of the Federal State Budgetary Educational Institution "SPbGUVM" according to generally accepted methods in accordance with the "On the safety of fish and fish products". The essence of bacteriological research lies in the fact that two smears are made on the slides, the preparations are dried in the air, fixed with a triple holding over the flame of an alcohol lamp and stained by Gramm. They view several fields of vision and calculate the arithmetic mean number of microbes in one field of view.

Detection of organophosphorus pesticides in dairy products by thin layer chromatography

The aim of the research was to determine the residual amounts of organophosphorus pesticides in milk, after treatment of the skin of cattle, using the method of thin layer chromatography. The studies were carried out on the basis of the Department of Veterinary and Sanitary Expertise of the St. Petersburg State University of Medicine. The material was milk samples taken 7 days and 14 days and 21 days after treatment of the animals. In parallel, control samples containing pure active substance were applied to chromatographic plates. Results were evaluated under UV light using a UVC-HDi UV cabinet. Based on the results of the studies, the dependence and sensitivity of the method to the detection of pesticides in milk after treatment of animals with diazinon-C was established. The size of the spots of the applied samples on day 7 after treatment was less than on day 14, and on day 21, the substance was not detected in the samples. Thus, this method can establish not only the presence of microconcentrations of substances in the samples, but also the dependence of their number on the size of spots on the chromatographic plate.

ВЛИЯНИЕ ЖИДКОЙ ВИТАМИННОЙ ДОБАВКИ НА ПРИРОСТ ЖИВОЙ МАССЫ И ГЕМАТОЛОГИЧЕСКИЕ ПОКАЗАТЕЛИ КРОЛИКОВ

The article presents the results of research aimed at studying the effect of the Nitamin liquid vitamin supplement on changes in live weight and the main hematological parameters of young rabbits. The studies were carried out at the Department of Parasitology and Veterinary and Sanitary Expertise of the Federal State Budgetary Educational Institution of Higher Education MGAVMiB – MVA named after K.I. Scriabin in the period 2021–2022. The objects of the study were young rabbits bred by crossing two meat breeds, the Soviet chinchilla and the New Zealand white. The drug «Nitamin» is a liquid vitamin drink supplement aimed at replenishing the deficiency of vitamins A, D3 , E and C in the body of animals. «Nitamin» experimental animals received with water for drinking four days from the age of 60 days and from the age of 74 days at the rate of 1 ml/1 liter of water. The results of the studies indicate that the rabbits who received the drug "Nitamin" with water for drinking, gained live weight more intensively, the weight of the experimental rabbits at the end of the experiment was 3.77 ± 0.26 kg, which is 12.87% more than in control group. The main hematological parameters of young rabbits after the use of the medicinal drinking supplement "Nitamin" were within the physiological norm without pronounced deviations. The amount of hemoglobin in the blood of rabbits of the experimental group at the end of the experiment significantly increased by 28.74% and amounted to 136.14±4.26 g/l. The content of total protein in the blood serum of rabbits of the experimental group significantly increased by 4.81% and amounted to 59.23±3.13 g/l. The obtained research results indicate that the drug "Nitamin" can be used as a safe supplement for the main diet of rabbits in order to increase live weight without exposing their body to any dangerous and harmful effects.

Качественные показатели коровьего молока при применении современного йодсодержащего препарата

The article presents the results of research aimed at studying the effect of a new complex iodinecontaining preparation (developer company “A-BIO”) on the quality indicators of cow's milk. The studies were carried out on the basis of the state farm LLC «Kolhoz Gzhelsky», located in the Moscow region and at the Department of Parasitology and Veterinary and Sanitary Expertise of the Federal State Budgetary Educational Institution of Higher Education MGAVMiB – MVA named after K. I. Scriabin. To study the biological effect of a new iodine-containing drug, 20 clinically healthy cows of the Kholmogory breed of 150 years of age were selected, selected according to the principle of pairs of analogues. The drug was administered orally to cattle at a dose of 30 ml/head every other day for thirty days. As a result of the use of an iodine-containing preparation for cattle, there was no negative effect on the organoleptic parameters (consistency, taste, smell, appearance) and physicochemical parameters of the milk obtained. The amount of fat in the milk of experimental cows increased by 16,12 %, protein – by 1,58 %, dry milk residue – by 18,2 %, dry skimmed milk residue – by 2,7 % compared with control.

Получение биологически полноценной продукции птицеводства при применении комплексного витаминизированного препарата

The article presents the results of studies of the effect of the complex fortified preparation of domestic production «Nitamin» on broiler chickens and the biological usefulness of the resulting meat. The experimental part of the work was carried out in the vivarium of the Department of Parasitology and Veterinary and Sanitary Expertise of the Federal State Budgetary Educational Institution of Higher Education of the MGAVMiB-MVA named after K. I. Skryabin. The drug «Nitamin » was given to broiler chickens with drinking water at a dose of 1 ml per 1 liter of drinking water, according to the scheme from 2 days to 5 days and from 15 days to 18 days, the birds were slaughtered on the 42nd day of keeping. The material for the research was the muscle tissue of broiler chickens of the experimental and control groups, the determination of the content of the amino acid composition, as well as trace elements of selenium and iron, was carried out in accordance with GOST R 55569–2013 Feed, compound feed, compound feed raw materials. Determination of proteinogenic amino acids by capillary electrophoresis, GOST 31707–2012 (EN 14627:2005) Food products of trace elements. Determination of total arsenic and selenium by atomic absorption spectrometry with generation of hydrides with preliminary mineralization of the sample under pressure and GOST 30178–96 Raw materials and food products. Atomic absorption method for the determination of toxic elements. The studied meat samples of broiler chickens, which were fed with the drug «Nitamin», have an increased biological value, the amount of essential amino acids increased by 14,38 % compared to the control. When studying the content of trace elements in the muscle tissue of experimental broiler chickens, an increase in the iron content by 81,8 % was noted in relation to the control group.

Влияние витаминизированных кормовых добавок на аминокислотный состав мяса кроликов

The article presents the results of studies whose purpose was to study the effect of fortified feed additives «Abiovit» and «Abiomin» on the amino acid composition of rabbit meat. The studies were carried out on the territory of a personal subsidiary farm located in the Moscow region (Ramensky district), at the Department of Parasitology and Veterinary and Sanitary Expertise of the Federal State Budgetary Educational Institution of Higher Education MGAVMiB – MVA named after K. I. Skryabin and in the Vladimir Testing Laboratory of the FGBU «ARRIAH». The objects of the study were rabbits of the Californian breed. Rabbits of the experimental groups were grown using feed additives «Abiovit» and «Abiomin», which were received with water for drinking, at a dosage of 1 ml / 1 liter of water by the course method from 60 and 80 days of age for 7 days each day, the control group did not receive feed additives. As a result of our studies, it was proved that the inclusion of feed additives «Abiovit» and «Abiomin» in the diet of rabbits, the main composition of which includes fat-soluble vitamins (A, D3 , E), helps to increase the biological usefulness of the meat obtained by increasing the amount of irreplaceable and replaceable amino acids.

Безопасность мяса цыплят-бройлеров при применении антибиотика нового поколения

The article presents the results of studies of the effect of a new generation antibiotic on the safety indicators of poultry products. The experimental part of the work was carried out in the vivarium of the Department of Parasitology and Veterinary and Sanitary Expertise, at Mayskiye Prostory LLC, 140 broiler chickens of the Ross-308 cross were purchased at the age of one day. The drug was fed to broiler chickens in a therapeutic dose: 0,3 ml/l of water per day, watering was carried out from the 16th to the 20th day (5 days). In the carcasses of broiler chickens, we did not find pathogenic and conditionally pathogenic microflora, the studied samples comply with the requirements of the Technical Regulations of the Eurasian Economic Union «On the safety of poultry meat and products of its processing» TR EAEU 051/2021. Analyzing the results of studies of residual amounts of antibiotics in muscle tissue, fat, skin, muscular stomach, heart and liver, we found that the detection of the minimum amount of florfenicol was on the 3rd day after the end of the drug drinking, and azithromycin on the 11th day.

Влияние витаминизированного препарата «Нитамин» на аминокислотный и химический состав мяса кроликов

The article presents the results of studies which purpose is to study the effect of the drug «Nitamin » on the amino acid and chemical composition of rabbit meat. Studies to determine the amino acid and chemical composition of rabbit meat were carried out at the Federal State Budgetary Institution «Federal Center for Animal Health» (FGBI «ARRIAH»), the processing of the results obtained during the study was carried out at the Department of Parasitology and Veterinary and Sanitary Expertise of the Federal State Budgetary Educational Institution of Higher Education MGAVMiB– MVA named after K. I. Scriabin. The objects of the study were the carcasses of rabbits of the experimental and control groups. The rabbits of the experimental group were grown using the drug «Nitamin» (the animals received «Nitamin» with water for drinking, from 60 days of age for four days and from 74 days of age for four days at the rate of 1 ml / 1 liter of water), the control group did not receive the drug. The results of the studies showed that the meat of rabbits treated with «Nitamin» with dri nking water, in terms of the total number of essential and non-essential amino acids, prevailed by 2,3 and 0,7 %, respectively, in comparison with the meat of rabbits of the control group. The mass fraction of protein in the meat of experimental rabbits significantly increased by 2,5 %, while the mass fraction of fat decreased by 1,8 % compared with the samples of the control group. The amount of iron in the meat of rabbits of the experimental group significantly increased by 83,33 % compared to the control group. The obtained data on the use of the drug «Nitamin » in rabbit breeding indicate an increase in the nutritional value of the resulting product while maintaining the dietary properties of rabbit meat.

Влияние витаминизированных кормовых добавок на гематологические показатели и мясную продуктивность кроликов

The article presents the results of studies whose purpose was to study the effect of fortified feed additives «Abiovit» and «Nitamin» on blood parameters (clinical, biochemical) and slaughter yield of rabbits. The studies were carried out on the territory of a personal subsidiary farm located in the Moscow region (Ramensky district) and at the Department of Parasitology and Veterinary and Sanitary Expertise of the Federal State Budgetary Educational Institution of Higher Education MGAVMiB - MVA named after K.I. Scriabin. The objects of the study were rabbits of the Californian breed. Rabbits of the experimental groups were grown using feed additives «Abiovit» and «Nitamin», which were received with water for drinking, at a dosage of 1 ml / 1 liter of water by the course method from 60 and 80 days of age for 7 days each day, the control group did not receive feed additives. When studying hematological blood parameters, it was found that the use of fortified feed additives «Abiovit» and «Nitamin» has a positive effect on the body of rabbits during the period of technological stress, as evidenced by the indicators of the number of erythrocytes and leukocytes in the blood of experimental rabbits, and we also noted a positive effect on synthesis of hemoglobin and stimulation of protein metabolism in the body of rabbits. It should be noted that the use of fortified feed additives does not adversely affect the biochemical parameters of rabbit blood in general. The slaughter yield increased in the experimental groups of rabbits that received fortified feed additives by 1.5–2% compared to the control.

Влияние комбинированного противопаразитарного лекарственного препарата на жирно-кислотный состав и безопасность мяса перепелов

The article presents the results of studies on the effect of the combined antiparasitic drug «Praziver », used to prevent heterakidosis, on the fatty acid composition and microbiological safety of quail meat of the Manchurian quail breed. The studies were carried out at the Department of Parasitology and Veterinary and Sanitary Expertise of the Federal State Budgetary Educational Institution of Higher Education MSAVM&B-MVA named after K.I. Skryabin, the fatty acid composition and microbiological safety of quail meat were determined at the Federal State Budgetary Institution «Federal Center for Animal Health». The quails were divided into two groups of 10 animals each, the first group received the drug «Praziver» with water for drinking from 14 days of age for 7 days at a dose of 0,5 ml / 1 liter of water, the second group was the control. The fatty acid composition of quail meat was determined according to GOST R 55483-2013 «Meat and meat products. Determination of fatty acid composition by gas chromatography». According to the results obtained, the use of the drug «Praziver» does not have a negative effect on the content of fatty acids in quail meat, therefore, does not reduce the biological value of the resulting meat. When studying the safety indicators of quail meat treated with Prasiver, no pathogenic and conditionally pathogenic microflora were found, the meat meets the requirements of TR TS 021/2011 «On Food Safety».