BACKGROUND Mycoplasma synoviae is an avian pathogen that can lead to respiratory tract infections and arthritis in chickens and turkeys, resulting in serious economic losses to the poultry industry. Enolase reportedly plays important roles in several bacterial pathogens, but its role in M. synoviae has not been established. Therefore, in this study, the enolase encoding gene (eno) of M. synovia...

1. The 3 day old chicken embryo removed from its shell is a suitable test object for the demonstration of primary serum toxicity. Addition of normal rabbit type sera as well as Forssman antiserum causes the vascular network to contract and the embryo sinks in the yolk and dies. 2. Only sera of animals of the so called rabbit type produce this phenomenon. Sera of the guinea pig type are ineffect...

Background: Protein extracts from chicken egg whites were prepared by utilizing different solvents and we studied the differences in proliferation. Methods: The white extract was using lysate, phosphate-buffered saline (PBS), pure water. vitro mixture experiment carried out to observe effect of preparations on proliferation cells. samples divided into following groups: control group with media,...

Hyperimmune antirickettsial serum was shown to prevent the attachment/penetration stage of Rickettsia tsutsugamushi infection of suspended chicken cells. The extent of the inhibition depended on the serum concentration but not on the presence of complement. The neutralizing activity was reduced by prior adsorption of immune serum with staphylococcal protein A or with intact rickettsiae but was ...

Avian infectious bronchitis virus (IBV) causes high mortality and reduced production even in vaccinated birds. The study hypothesis was that a decoction of a Chinese herbal medicine, modified Ma Xing Shi Gan Tang, in the drinking water would reduce mortality and improve recovery and antioxidant capabilities in chickens infected with IBV. Two hundred 15-day-old chickens were randomly divided int...

Background: Selecting the appropriate amino acid levels according to age of modern broiler chicken is critical since proteins are costly. This study, therefore, evaluated performance by modulating growth curve through varying balanced protein (BP) regimen under conventional all step-down phase feeding. Methods: In total, 1750 one-day-old straight run chicks (Hubbard) were randomly allocated 10 ...

Toxicity of diclofenac sodium was evaluated in relation to clinical signs, post mortem findings, liver and kidneys functions in broiler chicken model. Broiler birds (35th day) of groups A1, A2, A3 and A4 were injected diclofenac sodium at dose rate of 1.25, 2.5, 5 and 10 mg/kg body weight intramuscularly, respectively for four consecutive days. The birds of group A5 were injected with 0.2 ml/kg...

In the 3- to 4-day avian embryo, after the first wave of haemopoiesis which derives in the yolk sac from haemopoietic stem cells formed in situ, haemopoietic cells emerge in an intraembryonic site, the wall of the aorta. In this paper, we demonstrate that this site harbours M-CFC, G-CFC, GM-CFC and late and early BFU-E. In serum-free medium, the growth of M-CFC and GM-CFC was strictly dependent...

An experiment was conducted with 240, unsexed day old Arbor Acre broiler chicks to evaluate the benefit of replacing full fat soya (FFSM) whole kenaf (Hibiscus cannabinus L.) seed meal (WKSM) in diets on haematology, serum biochemistry and organs weight chicken a 2 x 3 factorial arrangement, consisting two processing methods (raw RKM roasted HKM) inclusion levels (10%, 20% 30%). Blood samples w...