background and aims: the objective of this study was to investigate the effects of newcastle disease and infectious bronchitis vaccination programs in chickens. materials and methods and results: in the present study, 225 day-old broiler chicks divided into 5 groups. the groups were submitted to vaccinations, except for the non-vaccinated control group. the chickens in the groups 1 were kept as...

Newcastle disease is one of the most important diseases of poultry. It usually causes a great loss inpoultry industry and domestic village chickens. Since domestic chickens in villages are free ranging for food,the chance of their contact with wild birds that may act as reservoirs is high. To determine the role ofdomestic chickens in the epizootiology of Newcastle disease virus in villages of I...

background: toxoplasma gondii, as an important food-borne protozoan parasite, occurs widely in humans and animals including domestic poultry throughout the world. the goal of this survey was to determine prevalence rate of t. gondii in free-ranging chickens sold in tunis, tunisia. methods: in the present study, the prevalence of t. gondii in 40 free-range chickens (gallus domesticus) marketed i...

abstract the increasing of yield per unit area is usually achievable by improving the soil fertility level through using (chemical) fertilizers. the purpose of the present research was to evaluate the 6 extraction methods including olsen, morgan, ammonium bicarbonate-dtpa, colwel, bray and mehlich 3 in order to specify a suitable extractant(s) for estimating available phosphorus through using 2...

newcastle disease is one of the most important diseases of poultry. it usually causes a great loss inpoultry industry and domestic village chickens. since domestic chickens in villages are free ranging for food,the chance of their contact with wild birds that may act as reservoirs is high. to determine the role ofdomestic chickens in the epizootiology of newcastle disease virus in villages of i...

The effects of replacing soybean meal (SBM) with graded levels morula kernel cake (MKC) on growth performance and haemo-biochemical parameters in broiler chickens were studied. Four isonitrogenous iso-caloric diets formulated by the SBM component at 0, 40, 80 120 g/kg MKC as protein source grower finisher diets. One hundred sixty 2-week-old chicks randomly allocated to treatments, which replica...

experimental infection of muscovy ducks with v4 strain of newcastle disease virus was undertaken to determine the response of the ducks to the virus and the possibility of virus transmission to ducks and chickens in village like conditions. twelve ducks were randomly and equally divided into three groups of control, inoculated and in-contact. additionally, the chickens were placed into two grou...