نتایج جستجو برای: sallmonella pullorum
تعداد نتایج: 448 فیلتر نتایج به سال:
Salmonella enterica serovar Pullorum causes persistent infections in laying hens. Splenic macrophages are the main site of persistence. At sexual maturity, numbers of bacteria increase and spread to the reproductive tract, which may result in vertical transmission to eggs or chicks. In this study we demonstrate that both male and female chickens may develop a carrier state following infection b...
The immune performance, SNPs and expression levels of candidate genes (IL1-β, Nramp1, TLR4, MyD88, NF-κB and NLRC5) were analyzed in carrier chickens of a Chinese indigenous breed infected with Salmonella enterica Serovar Pullorum at different persistence periods (12, 19 and 24 weeks of age). Carrier birds at 19 weeks of age presented significant difference in most immune parameters, as compare...
Salmonella enterica subsp. enterica serovar Gallinarum biovar Pullorum (Salmonella Pullorum) is highly adapted to chickens causing an acute systemic disease that results in high mortality. Vaccination represents one approach for promoting animal health, food safety and reducing environmental persistence in Salmonella control. An important consideration is that Salmonella vaccination in poultry ...
Monocytes-macrophages play an indispensable role in the immune system. The current study investigated the effect of selection for monocytes-macrophages phagocytosis on disease resistance in generation 1 (G1) of dwarf chickens. Five hundred dwarf chickens of generation 0 (G0) were divided into high and low phagocytic index (PI) groups (HPIG and LPIG, respectively) based on their PI of monocytes-...
Various Helicobacter species have been isolated from the stomach, intestinal tract and liver of a variety of mammalian and some avian species, and Helicobacter DNA has been detected in human bile and liver samples. An immunoblot assay was established to analyse serum antibody responses to non-gastric Helicobacter species in patients with autoimmune liver diseases, in comparison with healthy ind...
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