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Department of Veterinary Gynaecology & Obstetrics
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  • [Show abstract] [Hide abstract]
    ABSTRACT: Therapeutic efficacy of a new 'Indigenous vaccine' prepared from native highly pathogenic 'Indian Bison Type' genotype of Mycobacterium avium subspecies paratuberculosis (MAP) of goat origin has been evaluated with respect to control of clinical Johne's disease in naturally infected Mehsana breed of goat in North Gujarat. Fifty goats from Sheep and Goats Research Station, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, were randomly divided into 2 groups viz.,'Vaccinated'(n = 35) and 'Control'(n = 15). After vaccination, goats were monitored for physical condition, morbidity, mortality, body weights, shedding of MAP in feces, internal condition, gross lesions and humoral immune responses up to 120 days (at each interval of 30 days). At the end of 120 days trial, there was marked overall improvement in physical condition and body weights of vaccinated goats as compared to 'Control' goats. Vaccinated goats gained significantly (P < 0.05) higher body weights, hardly exhibited any lesions characteristic of JD, had significantly higher (P < 0.01) antibody titers and shedding of MAP was significantly (P < 0.01) reduced. Few of the vaccinated goats were positive for MAP DNA in faecal PCR and blood PCR before vaccination. However, all were found as negative at 120 days post vaccination (DPV). Overall vaccine exhibited effective in restriction of MAP infection and significant improvement in production parameters and reduction in mortality and morbidity due to JD. The trial in the herd will be continued.
    Veterinary Research Communications 01/2013; 37(2).
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    ABSTRACT: Single-dose pharmacokinetics of orbifloxacin (2.5mg/kg bodyweight) were determined in clinically normal female patanwadi sheep (n=6) following intravenous and intramuscular administration. Orbifloxacin concentrations were determined by high performance liquid chromatography with ultraviolet detection. The concentration-time data were analyzed by non-compartmental kinetic method. Following a single intravenous injection, an elimination half-life (t(1/2β)) of 8.31±0.102h. Steady-state volume of distribution (Vd(ss)) and total body clearance (Cl(B)) were 3.09±0.282L/kg and 0.158±0.006L/kg/h, respectively. Following intramuscular administration, the elimination rate constant (β), the area under the curve from zero to infinity (AUC(0-∞)) and the mean absorption time (MAT) were 0.015±0.001h(-1), 23.49±1.722 μg·h/mL and 7.50±0.58h, respectively. The peak plasma concentration (C(max)) of 1.81±0.005μg/mL was achieved at 1.00±0.00h. The mean residence time (MRT) was 26.25±1.083h and the absolute bioavailability were 150.8±12.35%, respectively. Orbifloxacin could be useful for the treatment of bacterial infections in sheep that are sensitive to this drug.
    Journal of pharmacological and toxicological methods 12/2012;
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    ABSTRACT: This study describes disposition of long-acting moxifloxacin and conventional formulations of moxifloxacin in sheep after intravenous administration in five male sheep. Long acting moxifloxacin solution (10% moxifloxacin in solution with L-arginine, N-butyl alcohol, and benzyl alcohol) and conventional moxifloxacin (10%) were injected in jugular vein. Blood samples were collected from contralateral jugular vein in test tubes containing 30-50 IU heparin (anticoagulant) periodically from 0.083 to 72 h of drug administration. Drug concentrations in plasma were determined using High-Performance Liquid Chromatography (HPLC) with fluorescence detector. The mobile phase consisted of a mixture of buffer (10 gm of tetrabutyl ammonium hydrogen sulphate per liter-deionised water) and acetonitrile (80 : 20). The buffer was 0.067M of disodium hydrogen phosphate with pH of 7.5. The flow rate was 1 mL·min(-1) at ambient temperature. The effluent was monitored at 296 nm excitation and 504 nm emissions wavelength. HPLC with fluorescence detector method for plasma moxifloxacin assay was standardized with specific modification for plasma of sheep in the present study. After single-dose intravenous administration of long acting moxifloxacin the plasma concentration of 0.016 ± 0.001 μ g·mL(-1) was maintained for up to 72 h. Conventional formulation of moxifloxacin remained in body for up to 24 h of drug administration with the level of 0.015 ± 0.005 μ g·mL(-1).
    ISRN veterinary science. 08/2012; 2012:951306.
    This article is viewable in ResearchGate's enriched format

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    Pālanpur, India
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International Journal of Agro-Veterinary Medical Science. 01/2011; 5(6):520 -522.
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