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  • Enrofloxacin degradation in broiler chicken manure under field conditions and its residuals effects to the environment
    Slana, Marko ; Žigon, Dušan ; Sollner Dolenc, Marija
    The rate of degradation of enrofloxacin in broiler chicken manure has been characterised. Its degradation was investigated in manure excreted by broiler chickens in an intensively reared chicken ... facility; further, the degradation also followed after transfer of the excreta into the natural environment occurred. The effect of enrofloxacin and its degradation products on cucumber and tomato was also investigated. Enrofloxacin degradation was shown to take place within the rearing facility and also continuing after the manure was transferred into the environment. The rates of enrofloxacin degradation and the degree of degradation product formation in the manure heap incubated in the environment were condition specific, both variables depending on the manure sampling depth. The degradation half-lives ranged from 12.7 to 38.1 days for enrofloxacin and from 1.2 to 8.2 days for the main metabolite ciprofloxacin. Only the cucumber showed signs of toxicity when incubated with the composted manure immediately after transfer into field occurred (t = 0). No toxic effects to plants were observed when manure from the last incubation day (60th) of the field study and manure from the last incubation day of the laboratory degradation study were applied. The degradation study under field conditions showed that enrofloxacin and its degradation products degrade fast in the environment. Additionally, the toxic effects to plants decrease with the incubation time of manure containing enrofloxacin residuals.
    Source: Environmental science and pollution research. - ISSN 0944-1344 (Vol. 24, iss. 15, 2017, str. 13722-13731)
    Type of material - article, component part
    Publish date - 2017
    Language - english
    COBISS.SI-ID - 4307825

    Link(s):

    http://link.springer.com/article/10.1007/s11356-017-8722-1
    DOI

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