Chemical Composition and Acaricidal Activity of the Essential Oils of Some Plant Species of and against the Vector of Tropical Bovine Theileriosis: (syn. ).

The present study aimed to investigate the acaricidal properties of six essential oils. They were extracted from some plant species ( and ) using the technique of hydrodistillation with the Clevenger apparatus. The chemical compositions of the essential oils under study were determined by gas chromatography-mass spectrometer (GC-MS).

Survey of bovine mycotic mastitis in different mammary gland statuses in two north-eastern regions of Algeria.

The aim of this study was to evaluate the prevalence of mycotic mastitis in different mammary gland statuses. The study was conducted on 304 dairy cows from ten farms in two north-eastern regions in Algeria; Guelma and Souk Ahras with 922 and 199 samples, respectively, forming thus a total number of 1,121 milk samples. A total of 321 milk samples were collected from clinical mastitis, 544 milk samples from subclinical mastitis and 256 milk samples from healthy mammary glands.