objective: the objective of this study was to investigate the pathological alterations of methionine for chicken embryo.in recent years, amino acids are used in veterinary medicine for many purposes. they injected into hatching eggs to increase chick body weight and performance at hatch, but the adverse effects of amino acids have always been a major concern. there is scant information availabl...

nitroimidazole compounds have been traditionally used in the veterinary and human medicine, but their uses are sometimes associated with some side effects. toxicopathological effects of nitroimidazoles have always been a major concern. there is scant information available about the pathological alterations of nitroimidazole compounds in the embryo. the objective of this study was to determine t...

objective: in recent years, amino acids are used in veterinary medicine for many purposes. they injected into hatching eggs to increase chick body weight and performance at hatch, but the adverse effects of amino acids have always been a major concern. there is scant information available about the pathological alterations of amino acids in the chicken embryonated eggs. the objective of this st...

pathogens are an important and significant hazard for human and animal health. in recent years, antibiotics are used to treat different types of infection caused by bacterial agents. in veterinary medicine, antibiotics injected into hatching eggs to eliminate pathogens and prevention of egg transmission of disease, but the adverse effects of drugs have always been a major concern. there is scan...

objective: in recent years, antiviral drugs have been used widely in the glob to prevent and treat viral diseases. they injected into eggs to eliminate pathogens and prevent of egg transmission of disease, but the adverse effects of drugs have always been a major concern. there is little information available about the safety of antiviral drugs in the embryonated eggs of birds. the objective of...

objective: fungal agents cause disease in virtually any susceptible hosts. in the poultry production and medicine, pathogens were eliminated from a line of a breeder by injection of antifungals into hatching eggs. there is little information available describing the safety of the antifungal drugs on the birds embryonated eggs. the objective of this study was to investigate the efficiency of the...

methenamine salts have been traditionally used in the veterinary and human medicine, but its use is sometimes associated with some side effects.toxicopathological effects of methenamine salt have always been a major concern. there is scantly information available about the lesions of methenamine compound in embryo. the objective of this study was to determine the teratogenic effects of methenam...

nowadays antibiotics are used on a large scale in veterinary and human medicine to cure or prevent diseases. some antibiotics injected into hatching eggs to eliminate pathogens and prevention of egg transmission of disease. adverse effects of drugs have always been a major concern. there is scantly information available about the safety and pathological alterations of lincosamide-aminocyclitol ...

Results with four pathogenic avian Escherichia coli isolates and one avirulent isolate in a complement resistance test, a chicken lethality test, and a chicken embryo lethality test were compared. Results of the complement resistance test with these isolates were highly correlated to results of the chicken lethality test of virulence. The chicken embryo test yielded results that were of a mediu...

introduction: skin resistance is greatly dependent on its collagen amount and nutritional substances such as crude protein that affect the skin collagen can indirectly influence the skin resistance and increase its strength. in this regard, this study aimed to evaluate the effect of in ovo methionine injection on histomorphometry of the skin layers. methods: thirty fertilized eggs of ross 308 b...