Despite of beneficial effects of antibiotics in treatments of infectious diseases, antibiotic residues in meat, milk, eggs and another products can cause serious side effects for human health. It is clear that, antibiotic residues in food stuff, cause bacterial resistance, allergic reactions, toxicity, carcinogenic effects and change of natural micro flora of intestine in consumers. So, the aim...

poultry nutrition or inappropriate treatments by antibiotics can lead to production of eggs with antibiotic residues. the aim of the present study is to assess the prevalence of drug residues in eggs presented in kermanshah, iran. for this purpose, 120 eggs with the average weight of 60 grams were collected randomly from the supermarkets in kermanshah and later were tested for antibiotic residu...

supply chain management is a set of guidelines for integration of chains, which aims to reduce costs and increase system services to customers. one of the most important issues for supply chain stockholders is procuring and purchasing requested items in a timely manner. thus, a variety of models have been proposed as purchasing strategy in supply chains. group purchasing is a system which leads...

Purpose Little is known about the external stimuli, which trigger a change in consumer's cognitive and affective state lead to willingness pay premium price (WTPPP) behavioural response. This study aims close this knowledge gap by providing insight into how unique combination of antecedents affects consumer attitude toward purchasing free-range eggs leads response, measured WTPPP for eggs. Desi...

Despite of beneficial effects of antibiotics in treatments of infectious diseases, antibiotic residues in meat, milk, eggs and another products can cause serious side effects for human health. It is clear that, antibiotic residues in food stuff, cause bacterial resistance, allergic reactions, toxicity, carcinogenic effects and change of natural micro flora of intestine in consumers. So, the aim...

The specificity of sperm-egg recognition in mammals is mediated primarily by the zona pellucida surrounding ovulated eggs. Mouse sperm are quite promiscuous and bind to human eggs, but human spermatozoa will not bind to mouse eggs. The mouse zona pellucida contains three glycoproteins, ZP1, ZP2, and ZP3, which are conserved in rat and human. The recent observation that human zonae pellucidae co...

b ackground: we tried to investigate the hair contamination of pet dogs and farm sheepdog with toxocara eggs in terms of the different sex and age groups in north-west of iran (urmia and its sub- urbs). m ethods: hair samples were collected from a total of 138 pet and farm sheepdogs from november 2008 to june 2009 in urmia city and the suburb (west azerbaijan-iran) and examined for the pres- en...