Occurrence of ectoparasiticides in Australian beef cattle feedlot wastes

A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed for the simultaneous analysis of 6 ectoparasiticides - 2 synthetic pyrethroids (deltamethrin, cypermethrin) and 4 macrocyclic lactones (abamectin, doramectin, ivermectin and eprinomectin) in biosolids. The method was used to investigate the occurrence of these ectoparasiticides in beef cattle feedlot wastes in Australia from 5 commercial feedlot operations which employ varying waste management practices. Deltamethrin and cypermethrin were not detected in any of the samples while abamectin, ivermectin, doramectin and eprinomectin were detected in some of the samples with concentrations ranging from 1 to 36 mu g/kg dry weight (d.w.) freeze dried feedlot waste. Levels of macrocyclic lactones detected in the feedlot wastes varied and were dependent on sample type. The effect of seasonal variations and waste management practices were also investigated in this study.

Trinh, T.University of New South Wales (UNSW) (författare)
Le-Minh, N.University of New South Wales (UNSW) (författare)
Klein, M.University of New South Wales (UNSW) (författare)
Roser, D. J.University of New South Wales (UNSW) (författare)
Tucker, R. W. (författare)
Stuetz, RMUniversity of New South Wales (UNSW) (författare)
Peters, Gregory,1970Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)petersg (författare)
Khan, StuartUniversity of New South Wales (UNSW) (författare)
University of New South Wales (UNSW)Chalmers tekniska högskola (creator_code:org_t)

Av författaren/redakt...: Coleman, H. M.; Trinh, T.; Le-Minh, N.; Klein, M.; Roser, D. J.; Tucker, R. W.; visa fler...; Stuetz, RM; Peters, Gregory, ...; Khan, Stuart; visa färre...

Om ämnet

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.