CHANGES OF ANTIBIOTIC SUSCEPTIBILITY OF CALVES ANTIANIMAL AGENTS
Abstract
The paper investigates susceptibility of microorganisms, which cause calves’ gastrointestinal disorders and shows wave changes in application of different antibiotics where aminoglycoside and quinolone/ fluoroquinolone are dominating. The authors found out average coefficient of antibiotic susceptibility of Proteus – 0.91 ± 0.03, Proteus – 0.91 ± 0.03, Streptococcus – 0.89 ± 0.02, Escherichia – 0.87 ± 0.05, Salmonella – 0.86 ± 0.04, Klebsiella – 0.84 ± 0.05 during 2001–2010. The research shows that level and coefficient of antibiotic susceptibility correspond to the general level of “aggression” of antianimal agents and characterize pathogenic potential of microorganisms. Studying the coefficient of antibiotic susceptibility shows that Proteus has maximum rate (0. 91 ± 0.03) and Klebsiella microorganisms have the lowest rate (0.84 ± 0.05). This correlates with the general susceptibility of these microorganisms to the antibiotics studied (from 0–100.0 % and 4.17–31.25 %). Estimation of coefficient variations has shown the relation between the coefficient increasing and decreasing in concern of application of aminoglycoside and quinolone/fluoroquinolone specimens. The authors observed the minimal rate of coefficient in 2006–2008; this corresponds to the period of low susceptibility to quinolone/fluoroquinolone specimens and high susceptibility to aminoglycoside antibiotics.
About the Author
N. N. Shkil
Институт экспериментальной ветеринарии Сибири и Дальнего Востока
Russian Federation
Russian Federation
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Review
For citations:
Shkil N.N. CHANGES OF ANTIBIOTIC SUSCEPTIBILITY OF CALVES ANTIANIMAL AGENTS. Bulletin of NSAU (Novosibirsk State Agrarian University). 2015;(3):107-115. (In Russ.)
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