| assessment of risks of brodifacoum to non-target birds and mammals in new zealand. | the risks to non-target birds and other wildlife from the use of vertebrate pesticides, including anticoagulant rodenticides, are determined to a significant extent by species' intrinsic susceptibility, and the toxicokinetics of the compounds used. brodifacoum is highly toxic to birds and mammals. the acute toxicity of brodifacoum to birds in new zealand varies from <1 mg/kg in pukeko (porphyrio p. melanotus), the native swamp hen, to >20 mg/kg in the paradise shelduck (tadorna variegata). like ... | 2002 | 11898799 |
| induction of in vitro erod activity and in vivo caffeine metabolism in two species of new zealand birds. | in birds, induction of cytochrome p4501a (cyp1a) is usually assessed as liver microsomal ethoxyresorufin o-deethylase (erod) activity, but in mammals, it can be determined by a caffeine metabolism blood test. we investigated both of these measures in two species of new zealand birds. administration of a model cyp1a inducer, +¦-naphthoflavone (bnf) (80mg/kg i.p. twice 2 days apart), to paradise shelducks (tadorna variegata; herbivore) and southern black-backed gulls (larus dominicanus; omnivore) ... | 2008 | 21783874 |
| hepatic cytochrome p450 activity and pollutant concentrations in paradise shelducks and southern black-backed gulls in the south island of new zealand. | cytochrome p450 (cyp) enzymes catalyse the oxidative metabolism of various xenobiotics including environmental pollutants. we investigated liver microsomal cyp marker activities in 60 paradise shelducks (tadorna variegata; herbivore) and 77 southern black-backed gulls (larus dominicanus; omnivore) collected at three sites with putatively different levels of pollution in the south island of new zealand. ethoxyresorufin o-deethylase (erod) activity was high in birds at an urban landfill site compa ... | 2008 | 18473165 |