Background To the best of our knowledge, studies are lacking on burnout among veterinary students in Serbia, and this is first study trying to address such a problem. Therefore, aim cross-sectional was investigate predictors Belgrade students. Methods Maslach Burnout Inventory (MBI) anonymous structured questionnaire addressed personal data, health habits stressful influence educational process were applied 496 respondents from total 1113 all grades spring semester 2014 (response rate...

The incidence of retained placenta (RP) in cows increases cases parturition induced by prostaglandin F 2 α . We analyzed the effects different doses supplemental selenium and vitamin E on RP, blood selenium, plasma thyronines, malondialdehyde concentration. Thirty-three clinically healthy, multiparous Holstein-Frisian were assigned to 3 groups supplemented with a single intramuscular injection sodium selenite (SS) tocopherol acetate (TAc) between days 250 255 gestation:...

A total of 221 feedstuff samples (187 grain and 34 hay samples) were collected from 13 different locations on the territory Republic Serbia. The results expressed as μg/kg have shown an average selenium content in 34.3 ± 17.1 53.8 18.7 samples. However, a distinct difference was noted between north river Danube (52.8 20.0 73.4 21.3 for samples, respectively) compared to south (23.3 ±15.4 41.7 respectively). GPx activity measured 58 blood plasma ewes grazing 5 locations. 157.4 61.9 μkat/L it...

Abstract Brucella ovis infects sheep and causes a clinical or subclinical disease characterized by genital lesions reduced fertility in rams, placentitis abortions ewes, increased perinatal mortality lambs. As part of this study, analyses were conducted on farm near Belgrade (Serbia). Of the serological tests, indirect ELISA was performed. A total 94 blood sera analyzed, 33 from rams 61 ewes. The results showed 23 (69.7%) positive findings 2 (3.3%) with an overall prevalence 25.4% bounded...

The aim of this investigation was to determine the influence oxidative stress upon general in dairy cows on parturition and whether indicators can be reduced by selenium (Se) supplementation. A total 36 animals were divided into 3 groups 21 days prepartum treated with a single-term intramuscular supplement sodium selenite: Control group - 0 mg; Se10 10 Se20 20 mg. Se supplementation significantly raised blood content glutathione peroxidase (GPx) activity Se20, compared Control, although...

Abstract The aim of this study was to evaluate the effects 60 days rose-hip and grapeseed dietary supplementation a balanced home-cooked diet on serum oxidative stress parameters: ROMs, MDA FRAP in army service dogs before after regular physical exercise. were fed cooked as instructed by standards until initial blood sampling June. Thereon randomly allotted 4 groups according regime: maintained standards, branded dry dog food, with added 500 mg extract, 100 extract for day period from June...

Introduction. Glutathione peroxidases are selenoenzymes which have a crucial role in the protection of animals against oxidative stress. Materials and Methods. From September 2017 to April 2018, group eight red-eared sliders were admitted at Clinic for Small Animals, Faculty Veterinary Medicine, University Belgrade elective diagnostic celioscopy. The turtles unknown age, weight from 1.20 kg 1.86 kg. anesthesia protocol involved using ketamine medetomidine, both low dosage (10 mg kg-1 0.1...

Abstract The study aimed to determine the concentration of energy-related hormones in cow’s milk and consider them from a public health perspective. Fourteen Holstein cows were subjected blood sampling on following days lactation (DIL): 10, 30, 60, 90, 150, 180, 210, 250 280 hormones, fat protein content biochemical parameters. For same purpose, bulk-tank was sampled samples retail m ilk with 1.5% (CM 1.5 ) 3.2% 3.2 purchased. Milk insulin-like growth factor-1 (IGF-1) values significantly...

Abstract The effects of propylthiouracil (PTU) treatment and selenium-deficient diet on selenium thyroid status Wistar male rats were examined in this study. (n =128) divided into four groups: (1) control group – selenium-adequate fed a supplemented with 0.334 mg Na selenite/kg feed received regular drinking water (Se+PTU-); (2) adequate dose 150 mg/L PTU water, (Se+PTU+); (3) containing 0.031 selenite/ kg (Se-PTU-); (4) deficient (Se-PTU+). After three seven weeks treatment, all Se animals...

Abstract This study evaluated the efficiency of different Selenium supplements on blood Se status and reproductive performance carp broodstock. Female (n=120) were distributed in 4 groups supplemented with as follows: control (non-supplemented), sodium selenite 200 µg/kg feed, i/m injection (160 µgSe/kg bodyweight), selenized yeast feed. Blood was sampled days 1, 20, 30. On day 30, samples roe taken from females, milt 10 unsupplemented males. Larvae after hatching. Plasmatic concentration...

In this work there was investigated the influence of selenium and deodinases blockers on juvenile rats body weight during three months. The experiment carried out 64 divided into eight groups with individual animals per group. Following were formed: 1. Se+PTU-IA- (control group), 2. Se+PTU+IA+, 3. Se+PTU+IA-, 4. Se+PTU- IA+, 5. Se-PTU-IA-, 6. Se-PTU+IA+, 7. Se-PTU+IA- 8. Se-PTU-IA+. labeled (Se+) adequate they fed food that contained 0.334 mg Se/kg. (Se-) deficient obtained 0.031 As...

Selenium is an essential trace element with multi significant role in the body. In contrast to other elements that appear as cofactors of certain enzymes, its physiological directly related functions proteins composition which it cotranslationally installed by atypical amino acid selenocysteine. The group proteins, selenocysteine integral functional part polypeptides, are referred selenoproteins. first enzyme has been proven have incorporated composition, glutathione peroxidase (GPx). So far...

This paper presents the results of investigations on effects a mineral mixture with buffering effect, (bentonite, zeolite, magnesium oxide and sodium bicarbonate), quantity composition milk, pH value cow's rumen contents, number motility microorganisms.The study was conducted from June to November two groups cows: control -C (129) experimental -E (119).The investigated included in complete feed (1%).The milk yield during hottest summer months (June -August) group E higher by 1.99 kg or 8.16%...

Abstract Both selenium, as an effector and regulator of antioxidative enzymes activity, thyroid hormones are potent immunomodulators. Besides, selenium incorporated into iodothyronine deiodinases is involved in the function thus indirectly regulates immune response. Studies mutual influence on response scarce, hence we analyzed effects blocker, propylthiouracil (PTU), deficiency peritoneal macrophages, titer naturally occurring anti-sheep red blood cells (SRBC) IgM antibodies juvenile rats....

Glutathione peroxidase (GPx) is an enzyme that has 8 isoenzyme forms, of which GPx-1 obligatory intracellular enzyme, while GPx-3 active in extracellular fluids, especially blood plasma. The main role GPx the protection cells from oxidative stress induced by free oxygen radicals. activity taken as a reliable indicator selenium status human and animal organism. Selenium introduced organism mainly through food chain. Ingested incorporated form selenomethionine selenocysteine into tissue...

The objective of the work was to investigate influence partial substitution magnesium oxide with natural bentonite in feed mixtures used feeding cows during their exposure heat stress. investigation lasted 30 days and carried out last ten may first twenty June when average air temperature stables 36.6?2.5oC. In experiment there were included Holstein breed phase lactation, which divided into two groups 15 cows: control (C) experimental (E). Group C fed mineral mixture that contained 60%...

The aim of the study was to determine stability activity ofglutathione peroxidases 1 and 3 during storage at +40C -180C. Blood sampleswere taken from eight sheep enzyme determined in theplasma (GPx3) erythrocytes (GPx1) on first, third, fifth seventh day insamples stored after one three months samples -180C.GPx3 decreased significantly both temperatures, whileGPx1 remained steady even Obtained resultsindicate that GPx3 has be fresh plasma samples,while erythrocyte GPx1 can monthsof

A total of 120 Escherichia coli (E. coli) strains from suckling piglets with diarrhoea and 30 E. healthy were tested for the presence fimbrial enterotoxin virulence genes. Out isolates sampled diarrheic piglets, 81 (67.5%) expressed one or more genes encoding factors. Adhesin detected in 52 (43.33%) out isolates, most common among them was F4 adhesin (33.33%). Genes toxins isolates. included study carried following toxins: STa, STb, LT EAST1. The astA gene EAST1 prevalent identified 72 (60%)...

The aim of this study was to establish if there are differences in glucose and βhydroxybutyrate (BHB) concentrations as well glutathione peroxidase (GPx) activity related the body condition heifers. Based on (BC), heifers were divided into two groups: 1. BC =3.75 2. ≥4.0. Whole blood samples from 23 heifers, taken between day 1 10 after parturition, used study. Glucose BHB determined immediately sampling, while GPx 24 hours that. Heifers with higher had significantly average concentration...