title: Losses in milking qualities of dairy cattle caused by mosquitoes and horseflies and reduction of such losses due to use of diethyltoluamide repellent.
abstract: An experiment was carried out in South Bohemia, in which 10% water emulsion of diethyltoluamide was used as repellent against bloodsucking Diptera to protect pastured dairy cattle. The repellent was applied by means of a spraying frame and was effective for 30-36 hours. Seven mosquito species and 18 horsefly species were observed to be attacking the cattle. The average number being 120-300 mosquitoes and 50 horseflies per hour, the milking qualities in the cattle decreased by 6.2%, the milk fat content by 11.8%. After converting to milk with average fat content of 4%, the difference in milking qualities between treated and untreated animals was 9.7%.
mesh_terms: D000336:Aerosols; D000818:Animals; D001549:Benzamides / Q000627:therapeutic use*; D002417:Cattle; D002418:Cattle Diseases / Q000378:metabolism / Q000517:prevention & control*; D009033:Culicidae; D003671:DEET / Q000627:therapeutic use*; D004175:Diptera; D005223:Fats / Q000032:analysis; D005260:Female; D007299:Insect Bites and Stings / Q000517:prevention & control / Q000662:veterinary*; D007302:Insect Repellents; D008892:Milk / Q000032:analysis*; D013045:Species Specificity
chemical_list: D000336:Aerosols; D001549:Benzamides; D005223:Fats; D007302:Insect Repellents; D003671:DEET