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Epidemiology and Antibiotic Susceptibility Profile of Methicillin Sensitive Staphylococcus aureus among Livestock and Pet Animals

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Veterinary Science Research 2020年第1期2卷 16-23页

作者： muhammad aamir naseer Amjad Islam Aqib muhammad Shoaib Iqra Muzammil Zeeshan Ahmad Bhutta Iqra Gulzar Department of Clinical Medicine and Surgery University of AgricultureFaisalabad-38000Pakistan Department of Medicine Cholistan University of Veterinary and Animal SciencesBahawalpur63100Pakistan Institute of Microbiology University of AgricultureFaisalabad38000Pakistan Royal(Dick)School of Veterinary Studies The University of EdinburghUnited Kingdom Department of Zoology and Fisheries University of AgricultureFaisalabad-38000Pakistan

Staphylococcus aureus is an important zoonotic pathogen that is responsible for a variety of infectious diseases in humans and *** present study was designed to check the prevalence and antimicrobial resistance of MSSA from three different animal origins(bovine,caprine and pet).A total of n=450 samples(150 each source)were collected from bovine,caprine and *** samples were subjected to *** identification by microbiological examination and confirmed *** isolates were put to oxacillin disk diffusion test to declare them *** MSSA confirmed isolates were subjected to various antibiotics for susceptibility profiling using Kirby Bauer Disk Diffusion *** present study found higher prevalence of MSSA from caprine origin(goat 83.33%)as compared to pet(cat 69.33%;dog 65.33%)and bovine origin(buffalo 26.66%;cattle 31.66%).The in-vitro findings of current study revealed oxytetracycline and gentamicin presented 100%efficacy against MSSA of all origins while the vancomycin presented>35%,>40%and>65%resistance against MSSA isolated from bovine,caprine and pet origin ***,ciprofloxacin was equally effective(50%)against MSSA from buffalo and cattle while>80%efficacy was noted against MSSA from cat and *** and amoxicillin+clavulanic acid were 77.78%and 66.67%sensitive to MSSA isolates from caprine *** present study found higher prevalence of MSSA from bovine,caprine and pet isolates with diversified pattern of susceptibility of different antibiotics from all sources.

关键词： S.aureus MSSA Pet Bovine Caprine Antibiotic susceptibility

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Alterations in Quality Parameters of Mastitic Milk

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Veterinary Science Research 2020年第2期2卷 31-36页

作者： Maria Azam muhammad aamir naseer Kiran Mumtaz Iqra Muzammil KhazeenaAtta Rais Ahmed Amjad Islam Aqib Cholistan University of Veterinary and Animal Sciences Bahawalpur63100Pakistan University of Veterinary and Animal Sciences Lahore 54000Pakistan University of Agriculture Faisalabad 38000Pakistan

Quality milk production in modern dairy systems is facing many *** in them is mastitis which is responsible for decline in milk production,altered milk composition and compromised udder *** malaise consists of multiple bacterial etiologies which can be broadly classified into contagious pathogens and environmental pathogens *** is being isolated invariably in all epidemiological studies,followed by *** virulence in mastitis is often accounted due to microbial ability of producing wide array of virulence factors that enhances pathogenicity and sustainment potential in the epithelial linings of *** affects quality parameters of milk *** as well as mineral profile due to local damage and inflammatory *** decreases the lactose secretion because of oxidative stress generated due to the formation of free radicals in the *** mastitic milk,IgG2 becomes the predominant antibody which is thought to be the main opsonin supporting neutrophil phagocytosis in the bovine mammary ***,it plays a significant role in the battle against mastitis *** infected cow shows a notable elevated level of the sodium and chloride and demoted level of calcium,potassium and inorganic *** micro minerals,mastitis effects are pretty much same as in most macro minerals *** down their concentration in milk *** preventive strategy alongside strict surveillance and biosecurity is recommended for combating this challenge.

关键词： Mastitis Milk quality Minerals Lactose Immunoglobulin

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Design of Grid-Connected Photovoltaic System

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Journal of Power and Energy Engineering 2017年第8期5卷 1-12页

作者： naseer Khan muhammad aamir Faisal Mehmood muhammad Aslam muhammad Arif Department of Electrical Engineering UET Peshawar Pakistan Department of Electrical Engineering University of Malaya Malaya Malaysia Department of Electrical Engineering COMSATS Abbottabad Pakistan

This paper presents a grid connected photovoltaic system (PV) with a proposed high voltage conversion ratio DC-DC converter which steps up the variable low input voltages of photovoltaic module to the required DC link voltage. This voltage is applied to an H-bridge inverter which converts DC voltage into AC voltage and a low pass filter is used to filter the output. By adjusting the duty ratio of switches in DC-DC converter, the magnitude of inverter’s output voltage is controlled. The frequency and phase synchronization are ensured by a feedback signal taken from the grid. In this way, inverter is synchronized and connected with the grid to meet the energy demand. The PV system has been designed and simulated.

关键词： Photovoltaic Systems (PV) High Voltage Gain DC-DC Converter PWM Inverter Synchronization

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