Serological response in broiler chicks to different commercial Newcastle disease and infectious bronchitis vaccines.

David A Halvorson, D. Shaw, V. Sivanandan, E. K. Barbour, S. Maheshkumar, J. A. Newman, L. Newman

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Broiler chicks were administered vaccines against Newcastle disease and infectious bronchitis (both Arkansas and Massachusetts strains) at 2 weeks of age as either primary or secondary vaccinations. The vaccine was administered as a spray at 2 weeks of age to chicks that had received Newcastle disease vaccine alone, bronchitis vaccine alone, both vaccines in combination, or no vaccine at day 1 in the hatchery. The Newcastle disease hemagglutination-inhibition response was significantly lower in chicks receiving Newcastle disease vaccine as a secondary vaccine at 2 weeks than in those receiving the vaccine as a primary vaccination at that age. In contrast, the bronchitis hemagglutination-inhibition response was significantly higher in chicks receiving bronchitis vaccine as a secondary vaccination at 2 weeks than in those receiving the vaccine as a primary vaccination at that age.

Original languageEnglish (US)
Pages (from-to)978-981
Number of pages4
JournalAvian diseases
Volume35
Issue number4
DOIs
StatePublished - Jan 1 1991

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