Thiopeptin, a New Feed Additive Antibiotic: Microbiological and Chemical Studies
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منابع مشابه
Thiopeptin, a new feed additive antibiotic: microbiological and chemical studies.
The thiopeptins are a new group of sulfur-containing peptide antibiotics produced by Streptomyces tateyamensis. The antibiotic consists of a major component (designated as thiopeptin B) and four minor ones (thiopeptins A(1) to A(4)). These components were isolated by solvent extraction from mycelium followed by chromatography on silica gel with various ratios of chloroform and methanol as eluti...
متن کاملThiopeptin, a new feed-additive antibiotic: biological studies and field trials.
Thiopeptin is a new antibiotic, produced by Streptomyces tateyamensis and developed solely for animal use as a feed additive. The antibiotic content in animal tissue and feed was assayed in terms of the antimicrobial activity against Mycoplasma laidlawii A. This antibiotic was found to be relatively nontoxic in rats and mice. In chickens, this antibiotic is excreted into feces within 48 hr of a...
متن کاملChemical and microbiological studies on leachates from a waste tip.
SOME FACTORS affecting the chemistry and microbiology of waste tips are rainfall, surface water runoff, ground cover, types of tip and types of soil within the tip. Previous studies by Qasim & Burchinal (1970), on both simulated and natural tips, showed that anaerobic activity released CO,, H,, N, and CH,, and from acetone extracted tip solids, they obtained several aliphatic acids, ranging fro...
متن کاملIgE-mediated allergy to phytase -- a new animal feed additive.
BACKGROUND Although fungal phytase is frequently used as an additive to animal feed few investigations of its allergenic property have been conducted. METHODS Fifty-three subjects occupationally exposed to powdered phytase from Aspergillus niger were studied. Exposure data and symptoms were registered by the company physician. RESULTS Thirty-eight subjects complained of work-related respira...
متن کاملEffects of a Phytogenic Feed Additive Versus an Antibiotic Feed Additive on Oxidative Stress in Broiler Chicks and a Possible Mechanism Determined by Electron Spin Resonance.
Phytogenic feed additives are plant-derived products used in poultry feeding to improve overall performance of broilers. In this study, 588 one day-old Cobb 500 chicks were fed one of four diets and housed on either dirty or clean litter for 3wks. Treatments included: Group I: commercial diet with no additive and housed on clean litter; Group II: commercial diet with no additive and housed on d...
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ژورنال
عنوان ژورنال: Antimicrobial Agents and Chemotherapy
سال: 1972
ISSN: 0066-4804,1098-6596
DOI: 10.1128/aac.1.3.192