Abstract
In field trials, 14 flocks of turkeys were vaccinated against coryza (rhinotracheitis) with a temperature-sensitive mutant of Alcaligenes faecalis via drinking water. Vaccine doses of 5 to 250 million bacteria per turkey were used. Turkeys ranged in age from 2.5 to 13 weeks. Doses of 5 to 7 million bacteria did not induce complete protection. Doses of 50 million bacteria or more appeared to induce substantial immunity in most flocks. Six-week-old birds receiving doses of 90 million bacteria developed a high degree of protection against challenge with virulent A. faecalis.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 96-103 |
| Number of pages | 8 |
| Journal | Avian diseases |
| Volume | 25 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 1981 |
ASJC Scopus subject areas
- Food Animals
- Animal Science and Zoology
- Immunology and Microbiology(all)