The presumptive clinicpathological diagnosis of atrophic rhinitis (AR) is confirmed by demonstration of its causative agents, Bordetella bronchiseptica (Bb) and toxigenic strains of Pasteurella multocida (PMT), by means of culture or PCR from nasal or tonsil swabs or biopsies. Given that pig oral fluid (OF) is being increasingly used as a diagnostic specimen in pigs, the objective of this research was to evaluate its potential use as a sample for the diagnosis and surveillance of AR, coupled with PCR.
The use of oral fluid from pigs for the diagnosis of atrophic rhinitis
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Swine
The study revealed that the immunization of gilts with three doses of RHINISENG® prior to the first farrowing induced a robust humoral response that resulted in a high and homogeneous concentration of colostral antibodies in piglets. The duration of passive immunity against PMT exceeded 70 days of age in all animals and it began to decrease towards 105 days of age in piglets from gilts vaccinated with RHINISENG®.
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