B. megatherium cultures contain a few cells per hundred million which are able to grow in the presence of terramycin. Growth of the other cells is inhibited by the antibiotic with the result that the resistant cells overgrow the culture. The resistant cells are present in the culture, without contact with terramycin, and are able to grow in the presence of terramycin, without further modificati...

Some of the most frequently used antibiotics in apiculture for the treatment of bacterial brood diseases are oxytetracycline, chloramphenicol, sulphathiazole and streptomycin. Therefore, the aim of this research is to determine the degradation kinetics of the residua these antibiotics leave behind in different types of honey stored in dark at 25 °C. The examined honey samples (N=74) originating...

Antibiotics and anabolic steroid growth promoters usage have facilitated the efficient production of poultry, allowing the consumer to purchase, at a reasonable cost, high quality meat and eggs. Although these uses benefit all involved, unfortunately, the edible poultry tissues had harmful concentrations of drug residues. Therefore, this study was carried out on one hundred randomly collected f...

The current study focused on evaluation of pomegranate peel extract (PPE) and the oxytetracycline as antioxidant antiapoptotic potentialities New Zealand White rabbits (NZW) performance, physiological homeostasis, hemato-biochemical indices stabilized DNA structure resembling in 8-hydroxy-2-deoxyguanosine (8OH2dG) level. For this purpose, four groups (each one compromise 6 animals) weaned NZW a...

In this study, antibiotic residues in raw milk and pasteurized milk products sold in AnkaraTurkey investigated. For this purpose; a total of 240 milk samples, which contains 10 raw and 10 pasteurized milk samples per month collected from various markets in Ankara between April 2003 and March 2004 were analyzed in terms of penicillin G, oxytetracycline, gentamicin, streptomycin and neomycin by u...

Four groups of six Holstein calves were inoculated with 3.6 × 10(7) erythrocytes parasitized with Anaplasma marginale. The criteria for treatment of calves were increasing A. marginale rickettsemia and 30% reduction of baseline packed cell volume (PCV) of each animal. Group 1 (G1) received 7.5 mg.kg(-1) of enrofloxacin in a single dose; Group 2 (G2) 7.5 mg.kg(-1) of enrofloxacin twice every thr...

the intensive use of antimicrobial agents worldwide for prophylactic and therapeutic purposes has been associated with increase of bacterial resistance in the exposed microbial environment. oxytetracycline is the most frequently used antibacterial in the cold water fish industry because of its broad spectrum of activity and low cost. aeromonas hydrophila and other motile aeromonads are among th...

The purpose of this study was to investigate the antimicrobial efficacy of six groups of antibiotics and calcium hydroxide against Enterococcus faecalis biofilm in a membrane filter model. Two-day-old E. faecalis (ATCC 29212) biofilm was exposed to ampicillin, co-trimoxazole, erythr omycin, oxytetracycline, vancomycin, vancomycin followed by gentamicin, Ca(OH)(2), and phosphate-buffered saline ...