Indication of Coccal Microflora of the Udder Secretion of Cows With Mastitis

Semina, Lyudmila K.; Avduevskaya, Natalya N.; Skulyabina, Zoya A.; Voroshilova, T. G.; Baldycheva, G. A.

doi:10.36871/vet.san.hyg.ecol.201803010

Cited by 3 publications

(1 citation statement)

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“…Условия кормления и содержания способствуют бактериальной манифестации наиболее часто диагностируемых при маститах патогенных и условнопатогенных микроорганизмов: Staphylococcus aureus, Staphylococcus xylosus, Staphylococcus epidermidis, Streptococcus dysgalactiae, Streptococcus uberis, Escherichia coli, Pseudomonas aeruginosa [1,[6][7][8][9][10][11].…”

Section: Introductionunclassified

Metabolism features and milk microbiota of cows with mastitis in the Amur Oblast

Ostyakova,

Shulga,

Irkhina

et al. 2023

Veterinary Science Today

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The effective management practices of dairy farming are inextricably linked with the production of high quality milk, while the mastitis is one of the causes of reductions in milk yields and quality. The aim of the work was to study the microbiological profile of milk, the sensitivity of isolated microorganisms to antibiotics and metabolism features of cows with mastitis in the Amur Oblast. The following microorganisms were identified in the milk samples from cows with mastitis: Staphylococcus epidermidis (34.69%); microbial associations: Streptococcus agalactiae + Escherichia coli (32.65%) and Staphylococcus saprophyticus + Streptococcus agalactiae + Escherichia coli (30.61%); Staphylococcus haemolyticus (2.05%). Microorganisms isolated from the milk of mastitis-affected cows were susceptible to the following antimicrobials: Escherichia coli to cefotaxime (28.00 ± 2.00 mm) and ceftriaxone (27.50 ± 0.35 mm); Staphylococcus epidermidis, Staphylococcus haemolyticus, Staphylococcus saprophyticus to cefotaxime (35.50 ± 0.18 mm) and amoxicillin (35.10 ± 0.35 mm); Streptococcus agalactiae to tetracycline (27.60 ± 1.17 mm) and gentamicin (26.40 ± 0.99 mm). Metabolic disorders were observed in cows with mastitis. The albumin-globulin ratio was reduced (0.41), which is typical for various inflammatory processes; and a low albumin levels (29.00 ± 0.89%) suggested a decreased protein synthesis in hepatocytes. A moderate increase in gamma globulins (47.60 ± 1.05%) was associated with stimulation of the phagocytic mononuclear system. Water and mineral metabolism disorders were confirmed by low levels of calcium (1.80 ± 0.03 mmol/L) and magnesium (0.70 ± 0.02 mmol/L), which is a sign of many pathological conditions, and is associated with heavy lactation. Calcium-phosphorus ratio was reduced (0.82). Hematological indicators suggested hypochromic anemia (hemoglobin level – 100.60 ± 1.28 g/L, globular value – 0.60 ± 0.01). The leukogram was indicative of lymphocytopenia (36.90 ± 2.60%) and neutrophilia (rod-shaped neutrophils – 1.80 ± 0.13%, segmented neutrophils – 51.80 ± 2.51%).

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Section: Introductionunclassified

Metabolism features and milk microbiota of cows with mastitis in the Amur Oblast

Ostyakova,

Shulga,

Irkhina

et al. 2023

Veterinary Science Today

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Problems and trends in the development of dairy livestock in Russia

Semina¹,

Avduevskya²,

Skulyabina³

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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Staphylococci are widespread in the environment, which is facilitated by the duration of their survival on various objects. In this regard, rapid and accurate identification of staphylococcal species is in demand, with the aim to assess their pathogenic properties and prescribe adequate drug therapy. This year, 48 staphylococcal cultures were isolated from the udder secretions of cows (sick with mastitis) from six regional agricultural enterprises and tested for a number of biochemical properties. By the minimum number of tests, including catalase activity, mannitol fermentation and plasma coagulation, isolated cultures were differentiated into coagulase-positive and coagulase-negative ones. According to the research results for S. aureus, the three above-mentioned tests are sufficiently informative to classify them as pathogenic staphylococci. S. intermedius strains are catalase- and coagulase-positive, and with respect to mannitol fermentation, the reaction can be either positive or negative, which requires additional research. In addition to the tests listed above, the presence of hemolytic and DNAse activity was confirmed in strains of pathogenic staphylococci. The use of the reagents set of “Multimicrotests for biochemical identification of staphylococci (“MMT S”)” makes it possible to determine the species belonging of coagulase-negative staphylococci. Determination of biochemical properties of staphylococci isolated during bacteriological analysis makes it possible to identify them and assess their pathogenic properties.

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Formation and development of human capital of small towns in the Arctic in the sociological dimension

Silin

Yudashkin

2022

TSU Herald. Soc Econ Law Res

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The article discusses the features of the formation and functioning of human capital based on the materials of sociological studies conducted by the authors in small towns of the Russian Arctic. Traditional sociological tools were used: mass surveys, focus groups, an in-depth survey of experts according to the developed author’s methods. As an opposition to the development of Arctic small towns, shift camps are considered, the functioning of which is currently complicated due to the pandemic and sanctions. The paper presents a comparative analysis of the situation associated with the formation of human capital in the aggregate of its three components (health capital, edu-cational and professional capital, cultural capital) in three regions of the Arctic zone of the Russian Federation (RF AZ): its European sector (the study was conducted in the Arkhangelsk region), West Siberian (Yamal-Nenets Autonomous Okrug) and East Siberian (Chukotka Autonomous Okrug). Judging by experts’ assessments, the least favorable situation for the preservation and enhancement of human capital is developing in the territories of the European sector of the RF AZ, the most favorable situation is in Yamal.

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Indication of Coccal Microflora of the Udder Secretion of Cows With Mastitis

Cited by 3 publications

References 0 publications

Metabolism features and milk microbiota of cows with mastitis in the Amur Oblast

Metabolism features and milk microbiota of cows with mastitis in the Amur Oblast

Problems and trends in the development of dairy livestock in Russia

Formation and development of human capital of small towns in the Arctic in the sociological dimension

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