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1

Usefulness of the E-test for the determination of the susceptibility of Staphylococcus sp. isolated from milk of sheep and goats with subclinical mastitis to amikacin and amoxicillin-clavulanic acid

100%
Kirecci E., Ergun Y., Dogruer G., Saribay M. K.
Bulletin of the Veterinary Institute in Puławy
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2009
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tom 53
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nr 3
The aim of the study was to evaluate the Epsilometer-test (E-test) method to detect the susceptibility to amikacin and amoxicillin-clavulanic acid of 100 Staphylococcus species isolated from sheep and goats with subclinical mastitis. Of all the strains isolated, 24 were identified as Staphylococcus epidermidis, 17 as S. intermedius, 12 as S. xylosus, ten as S. warneri, nine as S. saprophyticus, nine as S. capitis, five as S. simulans, five as S. haemolyticus, three as S. sciuri, two as S. auricularis, two as S. hyicus, one as S. cohnii, and one as S. caprae. All isolates were sensitive to both antibiotics. While the MIC values of amoxicillin-clavulanic acid for the goat strains ranged from 0.125 to 1 µg/mL and of amikacin from 0.25 to 12 µg/mL, the MIC values for the sheep strains ranged from 0.047 to 2 µg/mL (amoxicillin-clavulanic acid) and 0.75 to 6 µg/ml (amikacin). The results of this study have shown that both antibiotics can be highly effective against Staphylococcus sp. that are often the reason for subclinical mastitis in small ruminants.
2

Selected biochemical and oxidative stress parameters and ceruloplasmin as acute phase protein associated with bovine leukaemia virus infection in dairy cows

76%
Akalin P. P., Ataseven V. S., Dogan F., Ergun Y., Baspinar N., Ozcan O.
Bulletin of the Veterinary Institute in Puławy
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2015
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tom 59
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nr 3
The aim of this study was to determine the ceruloplasmin (Cp) and vitamin C concentrations, the total antioxidant status (TAS), and selected biochemical parameters in dairy cows spontaneously infected with bovine leukaemia virus (BLV). Of the 27 cows included in the study, 18 animals were seropositive for enzootic bovine leukosis (EBL), whereas nine cows were seronegative and were used as controls. The serum aspartate aminotransferase (AST) (P = 0.003) and Cp concentrations (P = 0.03) decreased (65.17 ± 5.03 and 7.70 ± 0.72 respectively) in BLV-infected cows, as compared to healthy animals (100.67 ± 11.50 and 10.40 ± 0.70 respectively). A slight insignificant increase in alkaline phosphatase activity and unchanged levels of alanine aminotransferase, lactate dehydrogenase, calcium, magnesium, and TAS were demonstrated in EBL cows. As the TAS and vitamin C levels remained unchanged in EBL cows, it may be suggested that ruminants may compensate for the impaired oxidative/antioxidative balance. The results obtained also indicate that BLV may suppress AST and Cp synthesis or secretion in the liver through an unknown mechanism. The mechanism of action of BLV in hepatocytes, especially on AST and Cp, requires further investigation to elucidate the immune suppression caused by oncogenic retroviruses.
3
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Glucose-6-phosphate dehydrogenase, glutathione peroxidase, total glutatione and reduced nicotinamide adenine dinucleotide phosphate in milk cells of subclinical mastitic cows

51%
Akalin P. P., Ergun Y., Baspinar N., Dogruer G., Kucukgul A., Cantekin Z., Isgor M., Saribay M., Koldas E., Bastan A., Salar S., Pehlivanlar S.
Polish Journal of Veterinary Sciences
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2019
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tom 22
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nr 2
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