Mehrdad Modirsanei

[ 1 ] - The efficacy of a poultry commercial anticoccidial vaccine in experimental challenge with Eimeria field isolates

BACKGROUND: The control of coccidiosis in poultry industryis dominated by prophylactic chemotherapy; however,drug resistance is a serious problem. Alternative control methodssuch as vaccination have been accepted as a practical method forcontrolling coccidiosis in chickens. Considering the immunologicalvariation of Eimeria strains, the efficacy of live coccidiosisvaccines may be compromised. OB...

[ 2 ] - Influence of Phytase on Tibia Bone Characteristics of Broiler Quail Fed on Corn-Soybean Meal Diets

BACKGROUND: Exogenous phytase enhances the utilization of plant phytate phosphorus in poultry. OBJECTIVES: In the present study the effects of exogenous phytase was investigated on tibia bone characteristics of white quail. METHODS: In a 2x2 factorial arrangement, eighty, 11-day old unsexed chicks were randomly divided into 4 treatments of 20 replicates. All birds received one of four experimen...

[ 3 ] - Alteration of D-xylose intestinal absorption in broilers with high dietary barley intake

Low nutritive value and suitability of barley as a feedstuff for broilers is mainly due to its non-starch polysaccharides. An experiment was carried out to evaluate if diets high in barley alter the mechanisms responsible for the absorption of nutrients across the intestinal epithelium of broilers, using D-xylose absorption test. Thirty, 14-d old male broiler chicks (Ross 308) with similar body...

[ 4 ] - Influence of calcium and non-phytate phosphorus deficient diets with phytase on the performance of broilers, serum concentrations of minerals and the activity of alanin transaminase, aspartate transaminase and lactate dehydrogenas e

[ 5 ] - بررسی ایمنی هومورال در طیور چالش شده با ایمریا قبل و پس از واکسیناسیون به روش الایزا

زمینه مطالعه: علیرغم استفاده فراوان از داروهای ضدکوکسیدیایی و توسعه واکسن علیه ایمریا، این انگل کماکان در میان ماکیان شایع می‌باشد. درک مکانیسم‌های ایمنی، محققان را در پیشگیری کار آمدتر این عفونت انگلی یاری می‌نماید. هدف: مطالعه حاضر به منظور بررسی ایمنی هومورال علیه کوکسیدیوز طیور با استفاده از الایزا، قبل و پس از مصرف واکسن تخفیف حدت یافته لیواکوکس Q انجام شده است. روش‌کار: یکصد و بیست جوجه ی...