Background: Since the prohibition of antibiotic growth promoter in poultry ration by the European Union, poultry producers have been  trying to replace them by other growth promoters like medicinal herbs. Lipia citridora is a medicinal  herb enriched by several powerful phenolic compounds and with antioxidant and antimicrobial properties which lead to enhancing appetite and growth performance o...

the present study was conducted to evaluate the effect of vinegar and phytase supplementation on performance, blood lipids, immune system and some carcass characteristics of broiler chickens. for this purpose 240 one-day old male broiler chicks was divided in a 2×2 factorial experiment based on completely randomized design with 4 treatments, 5 replicates and 12 chicks in each and reared through...

In order to investigate the effect of in ovo injection of different levels of royal jelly on the hatchability rate and the quality of one-day-old broiler chickens (Ross 308) and some traits of the immune system, we have conducted an experiment using 640 eggs in a completely randomized design with four levels of royal jelly injection including 1) 1 mL of physiological serum (control), 2...

A semi-field study was carried out to evaluate the effect of two medicinal herbs, individually and in combination, on growth performance, carcass traits, nutrient digestibility and immune response of broiler chickens.  A total of 384 one-day-old straight-run Arbor Acres broiler chickens were allocated into 24 floor pens prepared in a commercial broiler house. Pen-groups were fed one of the foll...

an experiment was conducted to examine the effect of different levels of extruded soybean and enzyme on broiler performance. in a completely randomized design with 2×3 factorial arrangement, 480 one day-old, ross broiler chickens were divided into 40 groups, 12 chicks per pen. treatments were consisting of combination of four levels of extruded soybean (0.0, 5.0, 10.0 and 15.0 %) and two levels...

This experiment was conducted to determine the effect of different vegetable oil types on broiler energy expenditure, abdominal fat deposition and fatty acid profile of breast and thigh. A total number of 300 un-sexed day-old cobb 500 broiler chickens were used in a completely randomized design, consisted of five treatments (five different vegetable oil sources including soy, flaxseed, canola, ...

Background & Aim: Medicinal plants is very potential to be used as a supplementary feed as well as feed additive in broilers.This experiment was conducted to investigate the effects of milk thistle (MT) and thyme seeds (TS) on the performance in broilers. Experimental: In this study, 160 one-day-old (Ross 308) male broiler chicks were divided randomly into four major groups with 4 replicates b...