الفهرس 
Title : Effect of organic acids addition on physiological and productive performance in broiler chickens in North Africa
ContantsOnly 14 pages are availabe for public view
 |  | from | 128 |  |  |
| | | from | 128 | | |
Abstract
The present study was carried out at the Institute of postgraduate and Environmental Research - Damanhour University, El-Behira governorate Egypt, at the north east of Africa, throughout the period from (31th October 2015 to 11th December 2015). A total three hundred and sixty, one day old broiler chicks (Arbor Acres) were obtained from commercial hatchery to study the effect of organic acids addition (butyric acid and propionic acid) on physiological and productive performance in broiler chickens during the experimental periods, two experimental were conducted. The first experimental, a total of 180, one day old broiler chicks were obtained from commercial hatchery. Chicks were fed a commercial broiler diets during 1-6 days of age. At day 7 of age, broiler chicks were randomly distributed keeping equal initial body weight among 4 treatment groups each containing three replicates, 15 unsexed chicks for each. The dietary treatments including treatment 1 (control diet), treatment 2 with addition 0.5% butyric acid, treatment 3 with addition 1% butyric acid, treatm1ent 4 with addition 2% butyric acid, the experimental period form started at 7 day of age to 42 days of age. The second experimental, a total of 180, one day old broiler chicks were obtained from commercial hatchery. Chicks were fed a commercial broiler diets during 1-13 days of age. At day 14 of age, broiler chicks were randomly distributed keeping equal initial body weight among 4 treatment groups each containing three replicates, 15 unsexed chicks for each. The dietary treatments including treatment 1 (control), treatments 2, 3 and 4, were fed diet supplementation with 0.25, 0.5 and 1% propionic acid in drinking water, respectively