Effect of genetic selection for increased body weight and sex of poult on antibody response of turkeys to Newcastle disease virus and Pasteurella multocida vaccines.
Primary and secondary antibody responses of 671 turkeys of two genetic lines to Newcastle disease virus (NDV) and Pasteurella multocida vaccines were examined. The randombred control line (RBC2) and a subline (F) of RBC2 had been selected for increased 16-week body weight. Poults were vaccinated at 6 and 12 weeks of age, and serum samples were collected 3 weeks after each vaccination. Antibody titers were determined using an enzyme-linked immunosorbent assay. Line F turkeys had significantly higher 9-week and 15-week serum antibody titers to NDV than line RBC2. However, line RBC2 had significantly higher serum antibody titers to P. multocida at 15 weeks of age than line F. The 9-week and 15-week serum antibody titers to NDV were significantly higher in females than males, but males had significantly higher 15-week serum antibody titers to P. multocida than females. Sex of poults did not contribute significantly to variation in serum antibody response to P. multocida at 9 weeks of age.
Sacco
R E
RE
Department of Poultry Science, Ohio Agricultural Research and Development Center, Ohio State University, Wooster 44691.
Nestor
K E
KE
Saif
Y M
YM
Tsai
H J
HJ
Patterson
R A
RA
D000704:Analysis of Variance; D000818:Animals; D000907:Antibodies, Bacterial / Q000097:blood; D000914:Antibodies, Viral / Q000097:blood; D000917:Antibody Formation / Q000235:genetics*; D001428:Bacterial Vaccines / Q000276:immunology*; D001835:Body Weight; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D008297:Male; D009522:Newcastle disease virus / Q000276:immunology*; D016979:Pasteurella multocida / Q000276:immunology*; D012641:Selection, Genetic; D012727:Sex Characteristics; D013045:Species Specificity; D014422:Turkeys / Q000235:genetics / Q000276:immunology*; D014765:Viral Vaccines / Q000276:immunology*
D000907:Antibodies, Bacterial; D000914:Antibodies, Viral; D001428:Bacterial Vaccines; D014765:Viral Vaccines