Purpose: To investigate the effect of phytosterol in a feed on growth and gene expression of broiler chickens. Methods: Seven isonitrogenous diets with graded levels of polyhydroxy phytosterol(Castastesrone) (15, 20, and 25 g/kg diet) and hydroxyphytosterol (β-sitosterol) (25, 50, and 75 g/kg diet) were used to feed broiler chickens for 45 d. Results: The dietary phytosterol significantly impro...

Broiler chickens are birds that grow very fast, but have low body resistance and easily stressed. This study aimed to examine the effect of nucleotide turmeric extract (Curcuma longa Linn) on blood profile (erythrocytes, hemoglobin leukocytes) carcass production (weight carcass, weight breast, thighs wings) in broiler chickens. Data was collected using a completely randomized design with 7 trea...

This study was conducted to evaluate the effects of Bacillus subtilis, Clostridium butyricum and Lactobacillus acidophilus (tri-strain probiotics, TSP) endospores in broilers. TSP can benefit the host animal by increasing nutrient absorption from the gastrointestinal tract and altering the intestinal ecosystem in poultry. A total of 500 day-old ROSS 308 mixed sex broiler chickens with an averag...

Bacterial gastroenteritis caused by thermotolerant Campylobacter species, mainly Campylobacter jejuni, has been the most reported zoonotic disease in many developed countries in recent years. Reducing Campylobacter shedding on the farm could result in a reduction of the number of campylobacteriosis cases. In 2 independent broiler seeder experiments, in which broiler chickens were orally inocula...

large creamy color livers of some chickens from a commercial broiler flock, reared in tehran province, were noticed in a slaughter house. myeloid leukosis (myelocytoma) characterized by presence of typical gross and microscopic lesions was diagnosed. further studies for assessment of prevalence of this disease in broiler breeders and broilers flocks was suggested.

For economic and environmental reasons, chickens with superior feed efficiency (FE) are preferred in the broiler chicken industry. High FE (HFE) chickens typically have reduced abdominal fat, the major adipose tissue in chickens. In addition to its function of energy storage, adipose tissue is a metabolically active organ that also possesses endocrine and immune regulatory functions. It plays a...

The effect of Aspergillus niger hydrolysis on cassava peel meal based diet on the growth performance and nutrient retention of broiler chickens was studied. Delignified cassava peel was used as the carbon source in a composed medium under a pH of 5.0, concentration 3% and 35C to grow Aspergillus niger for five days. The culture filtrate obtained was then used to hydrolyze delignified cassava pe...

the objective of this study was to find a relationship between blood gas parameters and thyroid hormoneactivity with ascites syndrome in broiler chickens exposed to cold temperature and receiving a high qualitydiet. one hundred and sixty one-day-old broiler chicks were randomly divided in two equal groups. toincrease the incidence of ascites, chicks of group 1 were fed ad libitum with a higher ...

Two hundred and fifty day-old broiler chickens were housed in a high altitude farm and divided in two experimental groups (cold-exposed and control). At the age of 3 and 4 d, the cold-exposed chickens were exposed to 15?C for 3 h, while the control birds were reared under normal condition. During the period between 14 and 28 days, both groups of chickens were exposed to a low environmental temp...

Reovirus infections are actually related to a lot of disease conditions with different clinical manifestations. Reoviruses have been isolated from a variety of tissues in poultry, suffering from different disease conditions including viral arthritis/tenosynovitis, stunting syndrome, respiratory disease, enteric disease, immunosuppression and malabsorption syndrome. Economic losses related to re...