PREVENTION AND TREATMENT OF THE RESPIRATORY AND REPRODUCTIVE SYNDROME OF PIG (PRRS) WITH THE USE OF IMMUNOGLOBULINS OBTAINED FROM THE YOLK OF AN EGG OF HYPERIMMUNIZED HENS WITH THE VIRUS OF PRRS.

摘要

The present invention is related to the use of immunoglobulins obtained from the yolk of an egg of hyperimmunized hens with the virus of PRRS. The immunoglobulins are obtained by the aqueous phase extraction of the yolk by means of the use of hydroxypropylmethylcellulo saftalato in a final concentration of 0.05 % and sodium azide to the 0.001 %. The invention is also related with thew administration of these immunoglobulins for prevention and treatment of infected pigs with the virus PRRS, with the finality of decreasing mortality, gaining weight and decreasing viral excretion in farms.