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Articles by I. Zerdani
Total Records ( 2 ) for I. Zerdani
  A. Belghiti , S. Zougagh , T. Rochd , I. Zerdani and J. Mouslim
  Background and Objective: Tetracyclines are currently among the most widely used antibiotics for growth promotion in the broiler breeding sector. The current study seeks to evaluate the presence of antimicrobial activity in tissue of broiler chickens that have been fed a classic diet supplemented with the antibiotic oxytetracycline. Materials and Methods: A four-plate test was used to compare antimicrobial activity in tissues of chickens that had and had not been fed an antibiotic. Results: The results of this test showed that antimicrobial activity first appeared in the kidneys, followed by the liver and then adipose tissues. The most intense antimicrobial activity was observed in adipose tissue, whereas no activity was detected in muscle tissues. Conclusion: The inclusion of oxytetracycline in broiler chickens’ diet as an antibiotic growth promoter induced the appearance of antimicrobial activity in the kidneys and adipose tissue with an increasing intensity according to the time of the breeding period.
  Z. Abouda , I. Zerdani , I. Kalalou , M. Faid and M.T. Ahami
  Samples of natural bee-bread and bee-pollen from different aromatic and medicinal plants were studied for their antimicrobial activities on antibio-resistant bacterial strains isolated from human pathology. Four samples of bee-bread, two samples of fresh bee-pollen and two samples of dried bee-pollen were collected from different regions in Morocco. Dilutions of bee-bread and bee-pollen from 1/2, 1/4, 1/8 and 1/16 were tested by the agar well diffusion method on various strains of bacteria including E. coli, Staphylococcus aureus, Bacillus cereus and Pseudomonas aeruginosa. Results revealed that most of strains were inhibited by the dilution 1/2 and 1/4. The Gram positive bacteria were more sensitive to bee-bread and bee-pollen than Gram negative bacteria. All the samples showed strong antimicrobial activities on the bacterial strains, which were first tested for their resistance to antibiotics. The results showed that bee-bread and bee-pollen samples were inhibitory than dried bee-pollen.
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