Campylobacter jejuni is a major cause of food borne pathogens in humans and a major reservoir for this pathogen is poultry. The C. jejuni in broilers was investigated from in the caeca of broilers. Twenty broiler/flock samples from 7 flocks were assessed. The average prevalence of C. jejuni was 65% in the broiler flocks. The adhesion and invasion ability of 48 strains of C. jejuni on INT 407 we...

The objective of this study was to assess the hatch window, hatchability and quality broilers` chick obtained from different breeder strains in a commercial hatchery. A total 57 600 hatching eggs (28 800 per strain) were collected flocks Cobb 500 Ross 308 broiler parent stocks at 60-61 weeks age. Each strain randomly coded as B strain. mean value eggshell temperature found be higher Strain (101...

Antimicrobial agents are used extremely in order to reducing the enormous losses caused by Escherichia coli infections (colibacillosis) in Iran poultry industry. In this investigation fifty avian pathogenic Escherichia coli (APEC) strains isolated from broiler chickens with colisepticemia and examined for susceptibility to antimicrobials of veterinary and human significance. In vitro antibiotic...

An F(2) population (695 individuals) was established from broiler chickens divergently selected for either high (HG) or low (LG) growth, and used to localize QTL for developmental changes in body weight (BW), shank length (SL9) and shank diameter (SD9) at 9 weeks. QTL mapping revealed three genome-wide QTL on chromosomes (GGA) 2, 4 and 26 and three suggestive QTL on GGA 1, 3 and 5. Most of the ...

Athens Canadian Random Bred (ACRB) chickens, a 1955 meat-type control strain, were incubated with the 2013 Cobb 500 broiler to determine differences in egg composition, conductance values, incubation duration, hatch performance, and yolk utilization. Unincubated ACRB eggs had greater percentage solids than Cobb 500 eggs. The ACRB eggs had a greater solid portion as yolk, whereas the Cobb 500 de...

Since 1994 till today a few up to date have been made on the NRC (1994) recommendations for trace mineral requirements of broilers. The high prevalence of skeletal disorders in modern broilers could be a consequence of the uncoordinated growth rate and mineral nutrition. The commercial companies of broiler production often use a huge safety margin of trace minerals in feed formulation, which wi...

The aim of the study was to develop an algorithm for compounding feed mixtures with inclusion probiotic strains. authors have developed basic principles underlying modeling additive formulations. However, introduction viable cells beneficial microorganisms (probiotics) into significantly increases requirements level design products. Thus, article describes designing products poultry. A technolo...

A recombinant attenuated vaccine against infectious bursal disease virus (IBDV) was administered in ovo to 18-day-old embryos. The vaccine was genetically tailored to protect from challenges in the field against classic and variant strains of IBDV. The vaccine virus contains neutralizing epitopes from both classic (D78) and variant strain (GLS), and abrogates expression of the nonstructural pro...

  Avian metapneumovirus (aMPV) represents one of the most prevalent diseases of poultry mainly in combination with other pathogens, and it is increasing among chickens.  In the present study, the detection and characterization of an aMPV subtype B strain circulating in broiler flocks based on fusion (F) gene. In phylogenetic analysis, the isolates are located in B subtype cl...