Prevention and treatment of the porcine reproductive and respiratory syndrome (PRRS)

摘要

The present invention relates to the use of compositions of specific anti-PRSSV immunoglobulins obtained from the egg yolk of hens hyperimmunized with PRRS virus. The immunoglobulins are obtained through the extraction of the aqueous phase of the yolk through the use of hydroxypropylmethylcellulose phtalate at a final concentration of 0.05% and sodium azide at a final concentration of 0.001%. The invention also relates to the orally and parenterally administration of these immunoglobulins for the prevention and treatment of pigs infected with the PRRS virus in order to lower mortality rates, obtain weight gain and diminish viral excretion in the herds.