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Articles by Mohammad Hassanzadeh
Total Records ( 5 ) for Mohammad Hassanzadeh
  Mohammad Hassanzadeh
  Metabolic diseases such as ascites in broiler chickens result in significant economic losses to the poultry industry. The syndrome is multifactorial and mainly caused by exogenous and/or endogenous factors. Occurrences among faster growing lines are even more pronounced under conditions that imposed an additional metabolic load on the birds such as low ambient temperature. So, particular interactions between the environmental as well as with the genetic factors, play an important role. The purpose of this paper is to review some of predisposing factors that increase ascites incidence and the preventive procedures that have emerge for reducing the incidence of metabolic disorders in broiler chickens. Additionally, spontaneous hypoglycaemia or spiking mortality syndrome is also briefly mentioned.
  Shahram Azizi-e-Chakherchaman , Hossein Mostafaei , Askar Yari , Mohammad Hassanzadeh , Shahzad Jamaati-e-Somarin and Reza Easazadeh
  Drought is one of the most important abiotic stresses that limit crop production in arid and semi-arid regions of the world. Lentil (Lens culinaris L.), a valuable legume crop, is produced mainly as rain-fed in Iran. An experiment was conducted to study the relationships between Relative Water Content (RWC), Cell Membrane Stability (CMS) and duration of growth period with grain yield of 11 advanced genotypes, cultivars and a local genotype at the Ardabil research center for agriculture and natural resources, Ardabil, Iran. Experimental design was a Randomized Complete Block Design (RCBD) with three replications under both rain-fed and irrigated conditions. Combined ANOVA analysis procedure showed significant differences among all the evaluated traits. Significant differences between characters revealed that there was high variation between the traits studied. Means for characters under study showed that grain yield, RWC, CMS and duration of growth period decreased in rain-fed conditions, but cell membrane leakage (electrical conductivity) increased. Correlation coefficients showed strongly positive relation between grain yield with RWC (r = + 0.98**), strongly negative and non significant with CMS (r = -0.32ns) and strongly negative relation between grain yield and the days to maturity (r = -0.78**). The results of the experiment also revealed that there were not a strong relation between yield and calculated traits for drought tolerance except RWC. This character therefore, could be effective in evaluation of drought tolerance and identification of high yielding genotypes (ILL 6031, ILL 9893 and ILL 8095).
  Mehran Ochi-e-Ardabili , Mohammad Zaefizadeh , Shahzad Jamaati-e-Somarin , Mohammad Hassanzadeh and Nahid Hazrati
  Genetically variation is of the most important tool in plant breeding, so making and investigating of the variation in genotypes can be a factor of success in selection of favorable traits in crop randomized complete block design with three replications was conducted using the 96 double haploid genotypes of resulted from wheat and corn hybridation with embryo rescue along with the four local controls in Ardabil, Iran, in 2007 and 2008 cropping season. During the season, agricultural and morphological traits as well as yield and yield components were measured. It was cleared that there were significant differences between the genotypes were placed in the first group and low yielding ones placed in the second group, which can be used to attain the more heterosis by hibridation of the genotypes in the both groups. Highly yielding genotypes generally are derived from the corn father lines of CMH81, CMH82 different mother lines.
  Shahzad Jamaati-e-Somarin , Mohammad Hassanzadeh , Fariborz Peyghami and Roghayyeh Zabihi-e-Mahmoodabad
  In order to evaluate the effect of nitrogen rates and plant populations on growth and chlorophyll content of durum wheat Seymare cultivar during the growing season, a factorial experiment based on randomized complete block design with three replications was conducted in the research center for agriculture, Islamic Azad University, Ardabil branch, Ardabil, Iran in 2008-2009 growing season. Factors included nitrogen rates: 0, 60, 120 and 180 kg ha-1 and plant populations: 300, 350 and 400 plant m-2. Date of appearance of some growth stages, growth of the leaves and stems in terms of number and dry weight and also, leaf chlorophyll content during the growing season was recorded. Results showed that with increasing nitrogen application, some aspects such as stem dry weight, number of leaf, stem and tiller along with the leaf chlorophyll content were increased and with increasing plant population per unit area, vegetative growth period and leaf chlorophyll content were decreased, while the reproductive growth period, leaf and stem dry weight and the number of leaf, stem and tiller were increased.
  Sara Mirzaie , Mohammad Hassanzadeh and Iradj Ashrafi
  The objectives of this study were to determine the prevalence of Salmonella in a population of house sparrows, which are commonly found around poultry houses, and to characterize the obtained Salmonella isolates via serotyping, multiplex polymerase chain reaction (PCR), and antibiotic resistance analysis. Samples of visceral organs (gastrointestinal tract, liver, and heart) from 470 house sparrows were subjected to culture and the results show that 18 (3.8%) were positive for Salmonella. Of the 18 Salmonella isolates characterized, the most predominant serovars were Salmonella Typhimurium and S. Enteritidis (9 and 8 cases each, respectively), whereas only 1 serovar belonged to S. Montevideo. All 9 S. Typhimurium serovars were positive for rfbJ, fljB, invA, and fliC genes based on multiplex PCR assay. In the case of S. Enteritidis serovars, PCR generated amplification products for spv and sefA genes, and a random sequence (specific for the genus Salmonella) in all 8 samples. All the Salmonella isolates were sensitive to norfloxacin, flumequine, ampicillin, and sultrim, and 35% were resistant to lincospectin (the most prevalent resistance).
 
 
 
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