Linked Life Data

18635321

Source:http://linkedlifedata.com/resource/pubmed/id/18635321

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2008-11-17
pubmed:abstractText
Necrotic enteritis (NE) in poultry has re-emerged as a concern for poultry producers, due in part to banning, by many countries, of the use of antimicrobial growth promoters in feeds. This re-emergence has led to a search for alternative methods for control of the disease, particularly vaccination. The objective of this work was to determine if vaccination of broiler chicks with recombinant alpha toxin protected against experimental challenge. Broiler chicks were vaccinated subcutaneously at 5 and 15 days of age, followed 10 days later by challenge with Clostridium perfringens. Birds were challenged twice daily on 4 consecutive days by mixing C. perfringens cultures with feed (three parts culture: four parts feed). Non-vaccinated birds challenged with C. perfringens developed NE at the rate of 87.8%, while only 54.9% of vaccinated birds developed lesions. In addition, non-vaccinated birds had lesion scores averaging 2.37, while average scores in vaccinated birds were 1.35. Vaccination produced an antibody response, with post-vaccination anti-alpha toxin IgG (IgY) titers in vaccinated birds more than 5-fold greater than in non-vaccinated birds. After challenge, vaccinated birds had average IgG (IgY) titers>15-fold higher than those in non-vaccinated birds. These results suggest that alpha toxin may serve as an effective immunogen, and, as such, may play a role in pathogenesis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0378-1135
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
133
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
92-7
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Immunization with recombinant alpha toxin partially protects broiler chicks against experimental challenge with Clostridium perfringens.
pubmed:affiliation
Department of Veterinary Science and Microbiology, University of Arizona, 1117 E. Lowell Street, Tucson, AZ 85721, United States.
pubmed:publicationType
Journal Article