|
|
Preliminary trials for preparation of a bivalent inactivated vaccine against Newcastle disease and egg drop syndrome
|
|
|
محاولات مبدئية لتحضير لقاح ثنائي ميت ضد مرض النيوكاسل و ظاهرة إنخفاض البيض
|
|
|
Abstract: Inactivated oil monovalent Newcastle disease (ND) and egg drop syndrome (EDS) vaccines as well as inactivated bivalent (ND and EDS) vaccine were prepared in the present study and evaluated according to the directions of the recommended protocols of poultry vaccines. Such vaccines were found to be free from foreign contaminants, safe and immunogenic for chicken. The protective activity of the bivalent vaccine was compared to that of monovalent vaccines were found to be free from foreign contaminants, safe and immunogenic for chicken. The protective activity of the bivalent vaccine was compared to that of monovalent vaccines in different groups of chicken vaccinated against ND and EDS using monovalent and bivalent vaccines and compared with the imported bivalent vaccine (ND and EDS). Serologically, it was found that all vaccinated chickens had protective levels of humoral antibodies against ND and EDS either with the use of monovalent or bivalent vaccines without showing any antagonizing effect between the immune response of chicken to ND and EDS.
|
| Publication year |
2001
|
| Pages |
193-203
|
| Availability location |
القاهرة - ش السكة البيضاء - العباسية ص ب 131
|
| Availability number |
|
| Organization Name |
|
| City |
Beni-suef
|
| serial title |
second scintific congress proceedings
|
| Author(s) from ARC |
|
| Agris Categories |
Animal diseases
|
AGROVOC
TERMS |
Egg drop syndrome.
Newcastle disease.
Vaccines.
|
| Publication Type |
Conference/Workshop
|