Male pigs:
For use in male pigs (from 8 weeks of age).Induction of antibodies against GnRF to produce a temporary immunological suppression of testicular function. For use as an alternative to physical castration for the reduction of boar taint caused by the key boar taint compound androstenone, in entire male pigs following the onset of puberty.
Another key contributor to boar taint, skatole, may also be reduced as an indirect effect. Aggressive and sexual (mounting) behaviours are also reduced.
The onset of immunity (induction of anti-GnRF antibodies) can be expected within 1 week following the second vaccination. Reduction of androstenone and skatole levels has been demonstrated from 4 to 6 weeks post second vaccination. This reflects the time needed for clearance of boar taint compounds already present at the time of vaccination as well as the variability of response between individual animals. Reduction of aggressive and sexual (mounting) behaviours can be expected from 1 to 2 weeks post second vaccination.
Female pigs:
For use in female pigs (from 14 weeks of age). Induction of antibodies against GnRF to produce a temporary immulological suppression of ovarian function (suppression of oestrus) in order to reduce the incidence of unwanted pregnancies in gilts intended for slaughter, and to reduce the associated sexual behaviour (standing oestrus).
The onset of immunity (induction of anti-GnRF antibodies) can be expected within 1 week post second vaccination. Reduction of sexual behaviour (standing oestrus) can be expected from 1 to 2 weeks post second vaccination. The duration of immunological suppression of ovarian function has been demonstrated for 9 weeks after the second vaccination.