One of the key benefits in using chickens for immunization is the high yield of antibodies
obtainable. It is known that egg production decreases over time, while animal maintenance …

Laying hens are highly efficient producers of polyclonal antibodies (PAbs). These antibodies
are transported to the egg yolk in large quantities from the blood of laying hens. The IgY …

The effects of two different keeping systems on the humoral immune response and
productivity were compared for 80 laying hens, divided into four groups. Two groups, each of …

Immunosuppression has historically cost the poultry industry in increased mortality and in
performance factors during rearing. In addition, immunosuppression has had a negative …

The objective of this study was to determine the decay rate of maternal antibodies against
major broiler chicken pathogens. A total of 30 one-day-old broiler chicks were obtained from …

Experiments were designed to compare antibody-mediated immunity in two lines of 5-month-
old chickens previously selected for a large or small bursa. After receiving a primary or …

Oral immunisation by gavage of laying hens with human immunoglobulin G (IgG) combined
with a number of potential adjuvants was performed. The resulting immunospecific egg yolk …

Despite the fact that the use of chicken as immunization host brings many advantages to the
production of polyclonal antibodies, the generation of egg yolk immunoglobulins (IgY) is …

Immunisation of chicken and extraction of antibodies from egg yolk belong to the alternative
methods since the animals suffering is reduced by non-invasive antibody-sampling. Also …

In recent years, the use of in-feed antibiotics for growth and disease prevention in livestock
production has been under severe scrutiny. The use and misuse of in-feed antibiotics has …