The aim of our study was to determine the approximate length of the post-partum period of the local goat breed in Algeria. Based on the identification of cell layers of the vaginal mucosa (vaginal cytology) from the first week after parturition. In this work we used 13 goats aged 2 to 4 years and weighing 18 to 34kg live weight. The experimental study was conducted at the experimental farm of the agro-veterinarian faculty of the Blida University. By swab, vaginal smears were made for each goat twice a week to 2 or 3 days interval from the seventh day post partum to 80 days post partum. We realized 312 smears of vaginal mucosa in total (stained with My-Grunwald-Giemsa staining) and we identify the resumption of the post-partum sexual activity when the superficial epithelial cells predominate in the smears. In the light of our study, the average interval parturition-resumption of sexual activity in the local goat in northern Algeria is short, estimated at 21,45 ± 3,56 days with a variation ranging from 16 to 27 days.
In order to determine the prevalence of bovine brucellosis and the factors affecting its persistence in the province of Djelfa (Algeria), a sero-epidemiological study was carried out on a total of 10827 cattle (7346 females and 3481 males) during the decade from 2004 to 2013. The sera were screened by card agglutination test, and the positive samples were confirmed by the complement fixation test. Some factors (year, age, breed and sex) were considered. Results found an average prevalence of brucellosis during these ten years of 1.4% with a highly significant difference according to year and sex (P<0.05). A prevalence of 1.58% for females against a prevalence of 1.03% for males was observed. No significant difference was observed for the different age groups (P>0.05) in the seroprevalence of brucellosis. A higher prevalence of infection (1.53%) was found in imported breeds compared to local and cross breeds with (1.39%) and (1.35%) respectively. The effect of the breed is highly significant (P<0.05). In conclusion the bovine brucellosis persists in the province of Djelfa and it is necessary to implement a scheme to fight and prevent this infection.
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