1.
Aust Vet J
; 71(3): 71-4, 1994 Mar.
Article
in English
| MEDLINE
| ID: mdl-8198510
ABSTRACT
The proportion of wool bale brands with a positive test for sheep lice in baled wool decreased from 29.5% in 1987/88 to 23.2% in 1990/91 before increasing to 38.2% in 1992/93. Changes in the proportion of wool bale brands with a positive test for lice were highly correlated with changes in the Wool Market Price Indicator. The increase in the proportion of positive lice tests since 1990/91 was associated with an increase in failures to eradicate lice from flocks. These failures were partly a consequence of the reduced use of lousicidal treatments, the development of resistance to synthetic pyrethroid chemicals and an increase in the transmission of lice between flocks.
Subject(s)
Lice Infestations/veterinary , Sheep Diseases/epidemiology , Wool/parasitology , Animals , Insecticides/therapeutic use , Lice Infestations/epidemiology , Lice Infestations/prevention & control , Prevalence , Regression Analysis , Sheep , Sheep Diseases/prevention & control , Western Australia/epidemiology , Wool/economics
2.
Aust Vet J
; 60(9): 283-4, 1983 Sep.
Article
in English
| MEDLINE
| ID: mdl-6651693