Respuesta serológica contra Mannheimia haemolytica y su leucotoxina en conejos suplementados con selenio

Selenodeficiency has a negative impact on the immune response of animals. The objective of the work was to evaluate selenium supplementation and its effect on the response against Mannheimia haemolytica and its leukotoxin. 21 rabbits were used. These were distributed in three groups (n = 7); A: Selenium plus bacterin-toxoid was administered; B: the bacterin-toxoid was administered. C: considered control. Blood selenium content was estimated by atomic absorption spectrophotometry. The response to antigens was evaluated through an ELISA. An analysis of variance and Tukey were performed to determine statistical significance, considering a P value 0.05), but of these with respect to C (P <0.05). In conclusion, the supplemented animals had higher concentrations of selenium. This had positive effects on the response against M. haemolytica, however, no differences were found for the response against leukotoxin.