RESUMO
The age and/or physical condition of mulesing wounds had a significant effect on both the oviposition response of L. cuprina and the ability of the wound to support a strike. Up to 48 h after mulesing, untreated wounds elicited a strong oviposition response in contrast with chemically treated wounds, although subsequent larval development was negligible. Seven to 9-day-old wounds, however, regardless of the wound treatment, were highly attractive oviposition sites, which subsequently developed into strikes; the D3 formulation of Defiance*S, however, significantly depressed strike development and shows promise as a mules wound treatment. A marked improvement in the wound healing 14 to 16 d after mulesing coincided with a significant decrease in oviposition. Only those sheep whose wound scabs remained broken, exposing pus and raw tissue, attracted oviposition; subsequent development of the eggs into strikes was negligible.
Assuntos
Dípteros , Ectoparasitoses/veterinária , Períneo/cirurgia , Doenças dos Ovinos/parasitologia , Ferimentos e Lesões/veterinária , Animais , Dípteros/fisiologia , Ectoparasitoses/parasitologia , Feminino , Larva/crescimento & desenvolvimento , Masculino , Oviposição , Complicações Pós-Operatórias/parasitologia , Complicações Pós-Operatórias/veterinária , Ovinos , Ferimentos e Lesões/complicaçõesAssuntos
Dípteros , Ectoparasitoses/veterinária , Inseticidas/uso terapêutico , Compostos Organotiofosforados/uso terapêutico , Doenças dos Ovinos/prevenção & controle , Cicatrização/efeitos dos fármacos , Animais , Suscetibilidade a Doenças/veterinária , Ectoparasitoses/prevenção & controle , Feminino , Inseticidas/administração & dosagem , Masculino , Compostos Organotiofosforados/administração & dosagem , Ovinos , Cauda/parasitologia , Cauda/cirurgiaRESUMO
While it is usually a simple matter to perform inhalation exposures to vapors from low-boiling liquids, inhalation exposures to vapors of high-boiling liquids present problems, especially the risk of decomposing the test substance by use of excessive heat. This work describes a device for the volatilization of high-boiling liquids, in a manner suitable for conducting inhalation exposures, without requiring heat input, which avoids this difficulty. The device is based on counter-current volatilization employing a multi-plate high efficiency distillation column. The column is thermostated below ambient temperature, which increases stability of operation and flexibility of application.