Passive immunity transfer forecast in different horse breed

Abstract

First trial was carried out on 11 thoroughbred mares. A correlation was noted between mare serum at delivery and 24 h colostrum IgG levels. Mare serum IgA collected one week before foaling were correlated with 24 h colostrum IgA. Significant correlation was found between foals serum IgGb amount at 0 h and IgGb mare serum content collected one week before foaling. IgG foal serum amounts collected one week after birth and IgG mare serum 2 weeks before foaling were also correlated. We noted correlation between gammaglobulins at delivery and 24h colostral IgGb. In the second trial 12 crossbred mares were examined. Total proteins (TP) mean level showed a good correlation with IgG concentration. Mare serum and mare colostrum IgG weren’t correlated. Serum IgG(T) were correlated with IgG and highest values were observed at foaling as in the previous trial. Significant correlation was also observed between IgG and IgM. Foal serum IgG(T) were correlated with IgG and both showed highest values at 18 hours. Correlation was found between foal serum IgG contents at 6 and 18 hours and colostrum IgG levels at delivery. Foal serum á1-globulins level significantly increased between 3 and 48 hours from birth; the same was noted for globulins between 3 and 24 hours. Albumin/Globulins ratio decreased, during the first 24 hours, from 2.5/1 at birth until about 1/1 at 18-24 hours