Home banner
Divider
A-Z Index

Quick way to the find the information that you need...

More button
Register with FRAME

Although you do not need to register, any information you provide will be confidential and used only by FRAME to improve the website

Register button
Account Login
Forgot password?

ATLA - ISI
The Journal

 

Alternatives to Laboratory Animals - ATLA

Download latest issue button Download back issues button Subscribe to ATLA
Contact Us

Tel icon

Tel: +44 (0)115 9584740


Tel icon

Fax: +44 (0)115 9503570

Make an Enquiry

The Humoral Immune Response and the Productivity of Laying Hens Kept On the Ground or In Cages


Michael H. Erhard, Haydar Özpinar, Tanay Bilal, Ysmail Abbas, Can Kutay, Hüseyin Eseceli and Manfred Stangassinger

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 20 hens, were kept on the ground and two were kept in cages. All the birds were immunised subcutaneously with human serum immunoglobulin G at a dose of 100μg per injection. The immunisations were performed twice at 4-week intervals. The lipopeptide Pam3Cys-Ser-(Lys)4 was used as an adjuvant at a dose of 0.25mg per injection in one group from each housing system. In the second group from each housing system, the hens were immunised without any adjuvant (antigen control groups). The mean egg yield was significantly higher in both the antigen control group and the adjuvant group, when laying hens were kept in cages. Total egg weight remained constant in both of the housing systems. Keeping hens in cages resulted in higher mean specific antibody titres and mean immunoglobulin Y concentrations in the egg yolk.