The objectives of this study were to investigate the immune responses of broiler chickens fed diets supplemented with different level of chromium methionine (CrMet) in heat stress (HS) condition. Two hundred and eighty eight male broiler chickens (Ross 308) were allocated to four treatment groups (supplementation with 0, 200, 400 or 800 ppb Cr in the form of CrMet) in a completely randomized de...

Marek's disease (MD) is the most common lymphoproliferative diseases of chickens; During the last year the incidence of MD was  investigated among slaughter houses and suspected broiler farms, located in  Isfahan (Iran) as the region of  highest density of poultry husbandry by histopathology,  For subclinical MD investigation, in  total 1550 chickens originated  from slaughter houses  were exam...

marek's disease (md) is the most common lymphoproliferative diseases of chickens; during the last year the incidence of md was  investigated among slaughter houses and suspected broiler farms, located in  isfahan (iran) as the region of  highest density of poultry husbandry by histopathology,  for subclinical md investigation, in  total 1550 chickens originated  from slaughter houses  were...

Low pathogenic avian influenza (H9N2) is of major concern for the poultry industry especially in Iran, as the virus can spread rapidly in and between flocks, causing high mortality and severe economic losses. The aim of this study was to determine the pathogenicity of H9N2 avian influenza virus in thymus and bursa of Fabricius of commercial broiler chickens, so we studied the histologic lesions...

this study was conducted to assay the use of saturejahortensis l. (savory) essential oil in the drinking water on broiler production and blood glucose, uric acid, creatinin and cholesterol. four hundred and twenty day old broiler chickens (ross 308) was used in a completely randomized design with 6 treatments and 5 replicate. experimental treatments included: 1) control, 2) tween (a solvent for...

In the present experiment, 320 one day old Ross 308 broiler chickens were used completely randomized design with 4 treatments, 4 replicates, and each replicate contained 20 broiler chickens. Experimental treatments include control, 0.5, 1, and 2% of Thymolina powder in chickens’ diet. Thymolina is an antibacterial powder drug which is made by composing 4 medicinal plants. A significant differen...

the present study was designed to examine the anatomical parameters of the cardiopulmonary system, the function of venous blood gas parameters and the development of ascites incidence in two genetic line chickens. three hundred forty day-old chickens from two pure broiler breeder lines, which were different in their growth rate and susceptibility to ascites syndrome were obtained. the relative ...

marek's disease (md) is the most common lymphoproliferative diseases of chickens; during the last year the incidence of md was  investigated among slaughter houses and suspected broiler farms, located in  isfahan (iran) as the region of  highest density of poultry husbandry by histopathology,  for subclinical md investigation, in  total 1550 chickens originated  from slaughter houses  were exam...