Prevalence of rotavirus (GARV) and coronavirus (BCoV) associated with neonatal diarrhea in calves in western Algeria.

Objective: To study the prevalence of bovine group A rotavirus (GARV) and bovine coronavirus (BCoV) in diarrheic feces from calves and the sensitive's parameters such as age group and sex.

Methods: Feces samples from 82 diarrheic dairy calves from farms around Tiaret (Western Algeria) were collected. These samples were tested by ELISA assay.

Antibacterial activity of various honey types of Algeria against Staphylococcus aureus and Streptococcus pyogenes.

Objective: To assess the in vitro antibacterial activity of honey from different geographical location on Gram negative organisms.

Methods: Different concentrations (Undiluted honey, 10 %, 30%, 50% and 70% wt/vol) of honey were studied in vitro using Staphylococcus aureus (S. aureus) and Streptococcus pyogenes (S.

Synergistic effect of starch and royal jelly against Staphylococcus aureus and Escherichia coli.

Objectives: To evaluate the synergistic action of starch on the antibacterial activity of royal jelly (RJ), a comparative method of adding RJ with and without starch to culture media was used.

Methods: Strains of Staphylococcus aureus and Escherichia coli have been used to determine the minimum inhibitory concentration (MIC) of a variety of freshly reaped RJ. In a second step, lower concentrations of RJ than the MIC were incubated with a set of concentrations of starch and then were added to media to determine the minimum synergistic inhibitory concentration.