Otro
Kinetics of epsilon antitoxin antibodies in different strategies for active immunization of lambs against enterotoxaemia
Registro en:
Pesquisa Veterinária Brasileira, v. 33, n. 8, p. 979-982, 2013.
0100-736X
1678-5150
10.1590/S0100-736X2013000800005
S0100-736X2013000800005
WOS:000324553200005
2-s2.0-84885129608.pdf
2-s2.0-84885129608
Autor
Costa, Heni Falcão
Babboni, Selene Daniela
Rodrigues, Carlos F. C.
Padovani, Carlos R.
Dutra, Iveraldo S.
Paulan, Silvana C.
Modolo, José Rafael
Resumen
Enterotoxaemia, a common disease that affects domestic small ruminants, is mainly caused by the epsilon toxin of Clostridium perfringens type D. The present study tested four distinct immunization protocols to evaluate humoral response in lambs, a progeny of non-vaccinated sheep during gestation. Twenty-four lambs were randomly allocated into four groups according to age (7, 15, 30 and 45 days), receiving the first dose of epsilon toxoid commercial vaccine against clostridiosis with booster after 30 days post vaccination. Indirect ELISA was performed after the first vaccine dose and booster to evaluate the immune response of the lambs. Results showed that for the four protocols tested all lambs presented serum title considered protective (≤0.2UI/ml epsilon antitoxin antibodies) and also showed that the anticipation of primovaccination of lambs against enterotoxaemia conferred serum title considered protective allowing the optimization of mass vaccination of lambs. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)