this experiment was conducted to investigate the effect of thyme essential oil and powder in comparison to antibiotic on performance of meat type quails, in a completely randomized design with 6 treatments, 4 replicate. the dietary treatments consisted of the basal diet without any added compounds (control), 100mg virginiamycin/kg, 0.1 or 0.2% thyme powder and 100 or 200 mg thyme essential oil/...

Background: Some medicinal plants can stimulate growth in poultry. Objective: To compare the effects of dietary addition virginiamycin antibiotic and galbanum plant (Ferula gummosa) on performance, carcass characteristics, immune system, blood factors broiler chickens. Methods: A total 250 one-day-old male Ross 308 chickens were randomly assigned to five treatments with replicates (10 birds per...

a total of 528 day-old ross 308 male broilers were used to study the effect of antibiotic, probiotic, prebiotic and organic acid on performance, cecal coliform load and internal organs’ weight. the chickens were placed into 6 groups with 4 replicates and 22 chickens per pen. six dietary treatments included: 1) negative control as basal diet without any antibiotic growth promoter and coccidiosta...

background: with the removal of antibiotic as growth promoters from poultry diets, it is of interest to investigate potential alternatives to maintain good growth performance and good intestinal microbial populations in these birds. numerous additives such as probiotics, prebiotics, organic acids, enzymes and herbal extracts used extensively in poultry feed. objective: the study was conducted t...

Three strains of streptococcus bovis were isolated from the ruminal contents of sheep and cattle: SbS45 from a sheep; Sb-Cl8 and Sb-CS from different steers. All the strains were found in large number(more than lo* per ml) in the rumen fluid samples after the animals were overfed with wheat and the acute lactic acidosis occurred, but the strains presented only in small numbers ranging from lo4 ...

The immunomodulatory function of longan pulp polysaccharide-protein complex (LP3) was investigated in immunosuppressed mice models. Compared with the model control, peroral administration of 100 mgkg⁻¹d⁻¹ LP3 could significantly increase/enhance antibody production against chicken red blood cell (CRBC), concanavalin A (ConA)-induced splenocyte proliferation, macrophage phagocytosis, NK cell cyt...

BarA of Streptomyces virginiae is a specific receptor protein for virginiae butanolide (VB), one of the gamma-butyrolactone autoregulators of the Streptomyces species, and acts as a transcriptional regulator controlling both virginiamycin production and VB biosynthesis. The downstream gene barB, the transcription of which is under the tight control of the VB-BarA system, was found to be transcr...

The two components of virginiamycin, M and S, separately exerted a reversi ble bacteriostatic activity on Bacillus subtilis. Their combination increased by a hundredfold the inhibitory activity of each factor and induced a loss of viability of bacteria. Such an irreversible step was preceded by a reversible phase, which was characterized by a long lag in colony formation. Very short incubation ...

Results: Gender, animal density, and concurrent disease were not associated with death due to HBS. Rates of death due to HBS were higher for pigs finished during the summer than for those finished in the winter. Rates of death due to HBS were lower in pigs fed rations containing bacitracin methylene disalicylate or chlortetracycline than in pigs on rations containing virginiamycin or no antibio...

Nephrotoxicity remains a common untoward effect of cisplatin therapy with limited effective chemopreventive options available till date. This study aims to evaluate the possible chemopreventive effect and mechanism(s) of action of 2 mgkg-1 and 5 mgkg-1 of Tadalafil in cisplatin-induced nephrotoxic rats. In this study, twenty-five male Wistar rats were randomly divided into five groups (n = 5 ra...