| 摘要 |
FIELD: medicine, veterinary science. ^ SUBSTANCE: invention refers to poultry farming. A method involves the introduction in ovo during a last quarter of incubation, an effective immunising dose of an immunogenic composition which induces an immune response against Clostridium bacteria where the immunogenic composition contains alpha toxin Clostridium perfringens, and said composition is introduced as in ovo injections directly into an embryo body. ^ EFFECT: method effectively protects the poultry against Clostridium bacteria infection either in ovo, and/or during a post-hatching period. ^ 9 cl, 17 tbl, 7 ex |
