this experiment was conducted to investigate the effects of using protexin, propionic acid growth promoters, and a blend of them on broilers performance. in a completely randomized design, three hundreds and twenty unsexed 1-d-old chicks were divided into four groups. dietary treatments were consisted of 1) control diet without any supplement, 2) the control diet + 0.01 % protexin, 3) the contr...

The aim of the study was to investigate the effects of a standardized mixture of a commercial blend of phytogenic feed additives containing 5% carvacrol, 3% cinnamaldehyde, and 2% capsicum on utilization of dietary energy and performance in broiler chickens. Four experimental diets were offered to the birds from 7 to 21 d of age. These included 2 basal control diets based on either wheat or mai...

Phytate is not only an unavailable source of phosphorus (P) for broilers but it also acts as an anti-nutrient, reducing protein and mineral absorption, increasing endogenous losses and reducing broiler performance. The objective of this study was to investigate the anti-nutritional effects of phytate by including high levels of phytase in diets not severely limited in available P. A total of 76...

The experiment reported herein considered the effect of using solvent extracted thevetia oil which was subjected to heat treatment at 110°C for 25 minutes. Four experimental diets consisting a basal diet and three other in 2.5, 5.0 10% control replaced by were formulated fed broilers during finishing stage (4 - 8 weeks). Eighty individually weighed randomly divided into four groups 20 birds eac...

A bio-assay was conducted to evaluate the effect of dietary supplementation brown seaweed (Sargassum wigetti) on performance broilers. Broilers (400) were divided into 5 treatment groups. Each had 8 replicates with 10 birds per replicate. The chicks control (Group A) fed a basal diet. Group B diet bacitracin methylene disalicylate (BMD) at 0.005%. Treatment Groups C, D, and E received 0.07, 0.1...

a total of 300 one-day old male broilers (cobb 500) were randomly divided into four treatment groups. the groups comprised of 15 birds each, and were defined by diet and the birds in each group were fed 0 (control), 3, 5, or 7 kgy electron-beam irradiated diets. a total of 5 replicates were performed. the chemical composition of the diet was not affected by irradiation.irradiation doses of 5 an...

A total of 300 one-day old male broilers (Cobb 500) were randomly divided into four treatment groups. The groups comprised of 15 birds each, and were defined by diet and the birds in each group were fed 0 (control), 3, 5, or 7 kGy electron-beam irradiated diets. A total of 5 replicates were performed. The chemical composition of the diet was not affected by irradiation.Irradiation doses of 5 an...

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...

Two independent experiments were conducted with broilers to determine the effect of threonine and vitamin A on immune system. In first experiment, dietary treatments contained 0.8%, 0.87%, 0.94 % and 1.01 % total threonine. In second experiment, diets were as follows: basal diet without vitamin A; basal diet plus 1500 IU/Kg vitamin A; basal diet plus 6250 IU/Kg vitamin A; basal diet plus 11000 ...

This experiment was conducted to evaluate the effect of different levels alfalfa saponins on cholesterol metabolism in broilers. A total of 320 Arbor Acres (AA) broilers of 1 day-old were randomly allotted to 4 treatments with five replicates in each treatment, and with 16 broilers in each replicate. The experiment last 49 days. During the stage from 0 to 3 weeks, broilers in the control group ...