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VETERINARY SCIENCE

ISSN 2227-6017 (ONLINE), ISSN 2303-9868 (PRINT), DOI: 10.18454/IRJ.2227-6017
ЭЛ № ФС 77 - 80772, 16+

AN ASSESSMENT OF THE GENETIC POTENTIAL OF STUD BULLS BY THE PRODUCTIVE QUALITIES OF THEIR MOTHERS AND DAUGHTERS IN THE SPA (K) “KUZMINSKY”

Posted in 2021, Issue № 12 (114) December 2021, VETERINARY SCIENCE | 0 comments

The realization of genetic potential largely depends on the productive qualities of animals. The current study carries out a comparative characteristic of the descendants of the leading lines of the Holstein breed. A comparative analysis of the productivity of daughters of different genotypes with the productivity of their mothers showed that within each line there are cows, the high productivity of which determines the value of individual bulls. The experience of using the genotype of stud bulls of different lines in order to improve the productive qualities of cows in this farm deserves attention.

It is impossible for breeding work to continue without the formation of breeding groups, i.e. selected animals with the best functional features according to a set of breeding indicators. The achieved level of development of dairy cattle breeding in Russia is considered high due to the updated methods of working with breeding high-producing animals. A number of studies by domestic and foreign scientists confirm the connection between the evaluation of bulls by the quality of offspring with a relatively rapid improvement of herds. Breeding work with highly productive cattle does not exist without the use of valuable breeding bulls with the high productivity of female ancestors. According to the results of studies determining the relationship of the breeding value of Holstein-Frisian bulls with productive longevity and the reasons for the disposing of their daughters (Adamczykk., JagusiakW., WeglarzA., 2021, Poland), the father’s breeding value class has a great influence on the disposal of cows on the basis of certain indicators; moreover, a greater percentage (50-73%) of disposed daughters on a number of key productivity indicators, as well as the duration of the service period and the number of somatic cells in milk, accounts for the average breed class bulls. Among the daughters of bulls of the highest (third) class, the lowest percentage of disposal was identified by the yield of milk fat and protein, while among the daughters of bulls of the first class, it has already been increased by 3-4 times.

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VETERINARY AND SANITARY EXAMINATION OF WILD DUCKS

Posted in 2021, Issue № 12 (114) December 2021, VETERINARY SCIENCE | 0 comments

Due to the annual increase in wild duck production in the regions of the Republic of Sakha (Yakutia), there is a need for a detailed study of wild bird meat to assess its quality in order to preserve health of the population. The research was carried out on wild ducks caught in the autumn period in Ust-Aldan district,Tattinsky district, and Megino-Kangalassky district of the Republic of Sakha (Yakutia). According to the results of an organoleptic study of mallards of group 1, carcasses of meat are category 1, while the mallards of group 2 had changes in quality related to category 2. According to the results of peroxidase studies, mallard meat of group 2 was classified as meat of questionable freshness. According to the results of studies on amino-ammonia nitrogen, mallard carcasses of group 2 showed negative results. The content of amino-ammonia nitrogen in the carcass of the 1 group mallard was 1.12 mg, the carcass of the European wigeon – 1.2 mg, the carcass of the northern shoveler – 1.3 mg, and in the white-winged scoter – 1.22 mg, it was found that the carcasses comply with GOST regulatory documents. In mallard carcasses of group 2, the meat corresponds to meat of questionable freshness. In the course of the study with copper sulfate, samples from the carcasses of mallard ducks of group 1, European wigeon, northern shoveler and white-winged scoter were transparent, while the broth of the mallard carcass of group 2 was cloudy with flakes, which indicates stale duck meat. According to the results of the study, the pH value in the carcass of the group 1 mallard was -6.12 mg, the carcass of European wigeon – 5.9 mg, the carcass of northern shoveler – 5.87 mg, and the carcasses of the white-winged scoter – 6.2 mg, which carcasses comply with the normative and technical indicators of GOST. And in the carcass of the group 2 mallard, the pH indicator was 6.6 mg, which indicates meat of questionable freshness. Studies veterinary andsanitary examinations to fishing ducks produced in the regions of the Republic of Sakha (Yakutia), from which the authors establish that the carcasses of the group 2 Mallard duck obtained in Ust-Aldan district, in connection with long-term storage, are in the category of the questionable freshness of meat.

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A VETERINARY AND SANITARY ASSESSMENT OF THE QUALITY OF HAM FROM LOCAL AND IMPORTED PRODUCERS

Posted in 2021, Issue № 12 (114) December 2021, VETERINARY SCIENCE | 0 comments

Based on a veterinary and sanitary assessment of the quality of ham, Khotu-As LLC and Mikoyanovskiy myasokombinat CJSC (Mikoyan Meat Processing Plant) according to organoleptic, physico-chemical and microbiological indicators meet the requirements of the GOST normative and technical documents. The conducted examination of the quality of sausage products manufactured by local meat processing enterprises of Khotu-As LLC indicates that the products sold fully comply with the regulatory and technical documentation for all organoleptic, physicochemical, and microbiological indicators and are subject to further implementation in compliance with storage and transportation regimes. The ham produced by Khotu-As LLC is the most competitive, as it surpasses in price and quality, which is important for the consumer.

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MORPHOLOGICAL PARAMETERS OF PIGLET BLOOD DURING THE DEVELOPMENT OF INFECTION CAUSED BY MYCOPLASMA HYOPNEUMONIAE

Posted in 2021, Issue № 12 (114) December 2021, VETERINARY SCIENCE | 0 comments

The authors conduct blood tests of 4-month-old piglets in order to study changes in morphological parameters during the development of infection caused by Mycoplasma hyopneumoniae. The research involved groups of animals consisting of clinically healthy, as well as infected and sick piglets of various ages, in which the genome of the causative agent of mycoplasmosis was identified via PCR. According to the results of the conducted studies, the authors identify the following changes in the morphological blood parameters of sick animals: a decrease in the amount of hemoglobin, an increase in ESR, erythropenia, leukopenia, eosinopenia, relative neutrophilia with absolute neutropenia, pronounced absolute and relative lymphopenia.

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PARASITIC DISEASES OF PIGS IN ROSTOV OBLAST

Posted in 2021, Issue № 12 (114) December 2021, VETERINARY SCIENCE | 0 comments

The article deals with the study of parasitic diseases of pigs in Rostov Oblast for the period from 2020 to 2021.

Modern pig farming is characterized by the concentration of pork production in large industrial complexes and in farms and owner-operated farms, the cultivation technologies of which differ significantly from each other.

Among the infections found in pigs are ascariasis, trichuriasis, oesophagostomiasis, which cause huge economic damage to pig breeding, reducing the weight gain of piglets by 15-50% and cause the death of a significant part of infected animals. As a result of the conducted studies on parasitic diseases of pigs, the extent of ascariasis infection amounted from 26.6 to 90%, by esophagostomiasis — from 30 to 90%, and by trichocephalosis — from 20 to 83.3%.

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PARASITES OF THE GASTROINTESTINAL TRACT AND LUNGS OF REINDEER IN THE KHANTY-MANSIYSK AUTONOMOUS OKRUG – YUGRA (2018)

Posted in 2021, Issue № 12 (114) December 2021, VETERINARY SCIENCE | 0 comments

Across areas of the Khanty-Mansiysk Autonomous Okrug – Yugra, the research has found eggs of trichostrongylids in reindeer with the prevalence of infection amounting to 3.85% in the Beloyarsk district and 4.29% in the Berezovsky. Trichocephalus eggs were found in samples of faeces of reindeer in the Beloyarsk district at the prevalence level of 0.71%. Larvae of pathogens of dictyoculosis were found in animals in all areas under study, in the Beloyarsk district, the prevalence was 34.62%, in the Berezovsky it amounted to 5.0%. Eggs of the causative agent of thysanieziosis were found in the faeces of deer farms of Beloyarsk and Berezovsky with an average prevalence of 5.96%, pathogens of monieziosis with a prevalence of 6.88%. Paramphistom eggs were detected in animals older than 3 years with an average prevalence of 1.37% in the districts. The eimeria prevalence averaged 7.34%. The effectiveness of deworming a young reindeer with Abavertin allowed for reducing the invasiveness of trichostrongylidae by more than 60.0%.

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COMPARATIVE ANATOMY OF THE SACRAL PLEXUS AND NERVES OF HIND LIMB OF A CAUCASIAN SHEPHERD DOG AND A JACKAL

Posted in 2013, Issue August 2013, VETERINARY SCIENCE | 0 comments

The article studies the external architectonics, radicular content, variational forms and comparative anatomy of hind limb nerves of a Caucasian Shepherd and a jackal, which was studied in 20 cadavers of aforesaid animals by conventional method of nerve preparation by Acad. V. P. Vorobiov. It was found that there segmental spinal lumbar and sacral nerves of various forms and variations are involved in the sacral plexus formation.

On our preparations in formation of the aforesaid plexus at the Shepherd often (50%) participated: ventral branches of last lumbar nerve, and at the jackal (70%) the last two lumbar and also all three sacral segmental nerves. Sacral plexus at both species is divided into sciatic and pudendal plexuses.

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DEVELOPMENT A BIOCHIP FOR IMMUNOCHEMICAL AND MOLECULAR BIOLOGICAL CHARACTERISTICS OF THE MICROORGANISM OF THE GENUS SALMONELLA

Posted in 2013, Issue August 2013, VETERINARY SCIENCE | 0 comments

The article is devoted to the study of a new method for immunochemical typing of Salmonella`s isolates using the biochip and is one of the stages of the identification of epidemiologically significant strains of Salmonella that is necessary from the standpoint of differential diagnosis and identification as non pathogenic and potentially dangerous strains.

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ANTIGENIC ACTIVITY OF THE VACCINE AGAINST PSEUDOMONOSIS IN PIGS

Posted in 2021, Issue № 11 (113) November 2021, VETERINARY SCIENCE | 0 comments

The article presents the results of studies of the antigenic activity of the vaccine against pseudomonosis in pigs developed by the staff of the Krasnodar Research Institute and еру federal state-owned enterprise “Armavirskaya biofabrika”. The authors study the antigenic activity in an experiment on pigs of various age and sex groups, in the reaction of agglutination in the blood serum of immunized animals with the determination of levels of antibodies to Pseudomonas aeruginosa antigens. The experiment finds that the vaccine against pseudomonosis in pigs has a high antigenic activity after double immunization of piglets aged 12-14 days with an interval of 10-12 days promotes the formation of intense immunity from day 14 for up to 6 months expressed in the levels of agglutinin titers from 3.2-4.6 to 4.0-5.8 log 2.

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PHARMACOLOGICAL EFFECT OF VARIOUS DOSES THEANTIVIRAL DRUG “TRIAZAVIRIN” WHEN EXPERIMENTALLY ADMINISTERED TO CALVES

Posted in 2021, Issue № 11 (113) November 2021, VETERINARY SCIENCE | 0 comments

The aim of the study was to examine the subtoxicity of the antiviral drug “Triazavirin” when administered to calves. The experiment involved 60 Black Pied calves aged 15 to 60 days without clinical signs of diseases.

To experimentally test the harmlessness of the drug, two groups of calves were formed using the method of analogs, the age and live weight of the animals were also taken into account. All animals were kept in the same conditions and had the same diet based on their age. The first group of calves were administered a 500 mg dose of the drug, the second group – a 750 mg dose. To conduct an experiment on the study of chronic toxicity, the third group of calves was formed, the animals received a 500 mg dose of the drug orally, once a day, for 28 days.

The experiment on the harmlessness of the antiviral drug “Triazavirin” did not lead to a fatal outcome. Hematological blood analysis identified leukocytosis, lymphocytosis. Administering the drug causes inhibition of the function of the red bone marrow germ. Hemoglobin and hematocrit before and after the experiment do not reach the lower limits of physiological parameters. Biochemical blood analysis revealed signs of increased load on hepatocytes of the liver and the heart, the De Ritis ratio was increased. The drug reduces the level of immunoglobulins.

During the experiment on the study of chronic toxicity, there were no fatal cases observed. When analyzing hematological parameters, leukocytosis and thrombocytosis were noted. Prolonged administration of the drug leads to an increase in the load on the hepatobiliary system. Biochemical analysis of the composition of the blood serum of calves revealed signs of impaired protein metabolism and protein-synthesizing liver function, as well as led to thyroid depression and a decrease in the level of hormones T 3 and T 4. With prolonged use of triazavirin, immunosuppression of the body of experimental calves is observed.

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SEASONAL AND AGE DYNAMICS OF ASCARIASIS AND TRICHOCEPHALOSIS OF PIGS ON FARMS

Posted in 2021, Issue № 11 (113) November 2021, VETERINARY SCIENCE | 0 comments

Helminthiasis of farm animals is currently one of the most studied and problematic tasks of veterinary medicine. Among the helminthiasis of pigs, most authors report the most frequent detection of mixed infection of animals with ascarids, trichocephalus, esophagostoma. In order to carry out effective therapeutic and preventive measures for mono and mixed infection, it is necessary to study the epizootiological aspects of helminthiasis in specific climatшс фтв geographic zones. In connection with the above, the authors attempt to study the features of epizootiology, in particular, the seasonal and age dynamics of ascariasis and trichocephalus in pigs in a Rostov Oblast outdoor farm.

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SEROLOGICAL MONITORING OF AVIAN INFLUENZA VIRUS IN THE REPUBLIC OF MORDOVIA

Posted in 2021, Issue № 11 (113) November 2021, VETERINARY SCIENCE | 0 comments

Avian influenza is a viral, contagious, acute disease in wild and domestic birds. Mammals, including humans, can become infected with this disease. In recent years, the number of outbreaks of influenza virus, including highly pathogenic H5N1, has increased. In the Russian Federation, the influenza virus has moved to the first place among dangerous animal diseases.

New threats of pandemics and epizootics of avian influenza determine the importance of controlling the spread of this disease among animals and birds. The article presents current data on the epizootic situation of avian influenza in the Russian Federation and the Republic of Mordovia. Data on measures to prevent and control the spread of avian influenza are also analyzed.

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PARASITIC DERMATITIS IN SHEEP: DIAGNOSIS AND TREATMENT

Posted in 2021, Issue №10 (112) October 2021, VETERINARY SCIENCE | 0 comments

Sheep breeding is considered one of the leading and profitable branches of the Russian economy. Sheep are healthy and high-quality food products, as well as a valuable raw material base, while their wool is used for the manufacture of felt, clothing, shoes and much more.

Skin diseases are one of the serious problems that sheep farmers have to face. Treatment and prevention of skin diseases contribute to the preservation of livestock and ensure the efficiency of livestock maintenance.

Based on the study of veterinary reports, it was concluded that skin diseases are caused by several ectoparasites. Moreover, in different climatic zones of the Chechen Republic, the spread and degree of manifestation of parasitic dermatitis of sheep has its own characteristics. The article contains data obtained from the period from 2016 to 2019.

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APPLICATION PCR FOR GENOTYPING OF BACTERIA PASTEURELLA MULTOCIDA ISOLATED FROM CATTLE

Posted in 2013, Issue № 9(16) September 2013, VETERINARY SCIENCE | 0 comments

With the help of the developed PCR incidence of serogroups A and D Pasteurella multocida bacteria from the lungs of calves suffering from respiratory diseases was studied. The results can be used in the planning of control measures in the dairy farms, as well as for investigation in molecular epizootology of disease caused by bacteria of the Pasteurellaceae family.

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IMMUNOMORPHOLOGICAL BLOOD PARAMETERS OF RED FOX PUPS (VULPES VULPES) WITH THE INTRODUCTION OF SUBALIN

Posted in 2021, Issue №9 (111) September 2021, VETERINARY SCIENCE | 0 comments

The article presents the results of a study of the effect of the probiotic subalin on the immunomorphological blood parameters of red fox pups at two and eight months of age. The effect of the probiotic was evaluated according to the main hematological, biochemical and immunological blood parameters. As a result of the research, the study demonstrates that the use of subalin for 5 days in all experimental groups of animals has an effect on the immunomorphological blood parameters: in pups at the age of 8 months, the number of red blood cells increases by 9.8%, the level of hemoglobin by 7.2%, and the level of white blood cells decreases by 20-25%, increases the amount of total protein, β -, γ – globulins, bactericidal and phagocytic activity of blood serum.

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THE SPREAD OF ASCARIASIS AND ESOPHAGOSTOMOSIS OF PIGS IN THE CONDITIONS OF FARMING

Posted in 2021, Issue №9 (111) September 2021, VETERINARY SCIENCE | 0 comments

As gathered from relevant literature, ascariasis and esophagostomiasis are severe parasitic diseases caused by helminths belonging to the Nematoda type. Diseases are widespread all over the world and pose a great danger to animals, adversely affecting the productivity of pigs, reducing daily weight gain and increasing feed consumption, which adversely affects the economic condition of farms. Despite the fact that there is a large amount of information on ascariasis and esophagostomosis in pigs presented in the analyzed literature, the issues of the associated course of these invasions remain relevant. In this regard, the authors attempt to study some epizootological aspects of these diseases in pigs in the conditions of outdoor farming in Rostov Oblast. To achieve this goal, the authors set the following tasks: to study the species composition of pig helminths on pig farms and to determine the contamination of the external environment with Ascaris suum and Oesophagostomum dentatum eggs.

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STUDYING THE EFFECT OF ANESTHESIA ON THE MORPHOLOGY OF RED BLOOD CELLS IN DOGS

Posted in 2021, Issue №9 (111) September 2021, VETERINARY SCIENCE | 0 comments

Red blood cells are blood corpuscles, the main function of which is to transfer oxygen to tissues and organs and carbon dioxide in the opposite direction. Since this process is provided by the presence of hemoglobin and a special form of cells, the control of their morphology is very important to ensure normal gas exchange for the body. The aim of the research was to study changes in the shape and size of red blood cells in dogs under anesthesia. Having selected dogs who were brought for planned castration/sterilization at a veterinary clinic, the authors took their blood for research before operation and in a state of anesthesia. The results demonstrate changes in the morphology of red blood cells, which point to the effect of anesthesia on red blood cells.

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THECOURSE AND CLINICAL PICTURE, AGE AND SEASONAL DYNAMICS OF INFECTIOUS KERATOCONJUNCTIVITIS IN CATTLE

Posted in 2021, Issue №8 (110) August 2021, VETERINARY SCIENCE | 0 comments

In the Bryansk region, the Aberdeen Angus breed has become very widespread, it occupies the leading position in the region in terms of numbers. It is a breed of great opportunities; however, it is still not appreciated. In addition to good quality of meat, it has excellent adaptability to severe climatic and forage conditions, cows have a high reproductive ability [1].

Infectious keratoconjunctivitis (Latin — Keratoconjunctivitis) is a polyetiological, acute and rapidly spreading cattle disease characterized by lacrimation, hyperemia of conjunctival vessels, photophobia, serous-purulent discharge, opacity and ulceration of the cornea, deformation of the eyeball. Having conducted an analysis of the available literary sources, the authors come to the conclusion that the research on this topic is insufficient, hence the decision to study this issue.

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FORMS OF THE PROGRESS, AGE DYNAMICS, ASPECTS OF DIAGNOSIS AND TREATMENT OF TRICHOPHYTIA IN DOGS

Posted in 2021, Issue №8 (110) August 2021, VETERINARY SCIENCE | 0 comments

The article describes many aspects of trichophytia in dogs and demonstrates means of combating this common disease with the calculation of their therapeutic and economic effectiveness.

Despite the intensive development of veterinary medicine of small domestic animals, skin pathology in dogs remains the most common and difficult condition to diagnose. According to many researchers [1], [3], [6], currently, more than 25% of veterinary visits of dog owners are associated with a skin disease. The condition of the skin and its derivatives is in many cases an indicator of the overall health of the dog [7].

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CONTROL AND IMPROVEMENT OF VETERINARY AND SANITARY MEASURES IN THE PRODUCTION OF MILK

Posted in 2021, Issue №8 (110) August 2021, VETERINARY SCIENCE | 0 comments

Due to the high contamination of raw milk with mesophilic aerobic and facultative anaerobic microorganisms, the study conducts experiments to improve the veterinary and sanitary treatment of dairy and milking equipment on one of the dairy farms. The results of the research prove that the use of an alkaline detergent and disinfectant “Biotec Super” in combination with an acidic detergent “Ksilan Super” can significantly reduce the amount of bacterial contamination of milking and dairy equipment and is characterized by high economic efficiency and recoupment due to the production of high sanitary quality milk.

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