Immunization of young chicks using graded dose of wild strain of Eimeria tenella
Onderstepoort Journal of Veterinary Research
| Field | Value | |
| Title | Immunization of young chicks using graded dose of wild strain of Eimeria tenella | |
| Creator | Kimbita, E.N. Samani, P.M. Machange, E.N. Silayo, R.S. | |
| Description | A wild strain of Eimeria tenella was isolated and utilized for immunization studies. Its optimal sporulation was attained at room temperature 24-25 C after 24-48 h. Two groups of chicks were immunized by dosing a graded dose of five oocysts/chick/day for 6 days followed by 50 oocysts/chick/day for 7 days. A third group was not immunized and served as a negative control. Immunized chicks gained mass at the same rate as unimmunized ones, but when challenged with 200 000 oocysts/chick, mass gains declined in the unimmunized group. The growth rate of immunized chicks was not affected by challenge (P 0.05). Upon challenge, unimmunized chicks produced significantly more oocysts than immunized chicks (P 0.005). Immunized chicks withstood a challenged with 200 000 oocysts/chick without developing any clinical signs whereas the unimmunized chicks developed typical clinical signs of coccidiosis. Unimmunized chicks had significantly more severe lesions in the caecum than any other group (P 0.005) and also produced significantly more oocysts than any other group (P 0.005). | |
| Publisher | AOSIS | |
| Date | 2005-09-15 | |
| Identifier | 10.4102/ojvr.v72i3.203 | |
| Source | Onderstepoort Journal of Veterinary Research; Vol 72, No 3 (2005); 251-254 2219-0635 0030-2465 | |
| Language | eng | |
| Relation |
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:
https://ojvr.org/index.php/ojvr/article/view/203/193
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