Abstract
In the canton of Freiburg, in the midlands of western Switzerland, the influence of housing systems and season on the distribution of Chorioptes-mange was studied. 24 herds with a total of 667 dairy cows held in tethered and loose housings were considered. In the 14 farms with tethered housing 33.8 % of the dairy cows were clinically suspicious and 31.0 % parasitologically positive. In the ten studied farms with loose housing 26.5 % were clinically suspicious and 17.8 % parasitologically positive cows. Statistically the infestations of the two housing systems did not differ significantly (U-test, p > 0.05). The transmission of mange occurs mainly directly from animal to animal, and chronically infested animals are considered to be the main source of infestation. The seasonality of Chorioptes-mange which is typical of our temperate climate was confirmed by serial studies made in two endemically infested farms with tethered housing.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
