Evaluation of serum enzyme activities and protein fractions in Brucella-infected cows

Authors : MOHAMED FAHMY ABOU ELAZAB

Pages : 480-484

Doi:10.3906/vet-1504-31

View : 9 | Download : 6

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The aim of this study was to evaluate potential changes in serum enzyme activities and protein fractions in Brucella-infected cows. A total of 1100 serum samples of dairy cows were screened for Brucella infection using the Rose Bengal test insert ignore into journalissuearticles values(RBT);. Serum samples reacting positively to the RBT were subjected to indirect enzyme-linked immunosorbent assay for confirmation. Thirty serum samples from serologically positive cows and 30 from negative insert ignore into journalissuearticles values(healthy); cows were analyzed for alanine aminotransferase insert ignore into journalissuearticles values(ALT);, aspartate aminotransferase insert ignore into journalissuearticles values(AST);, creatine kinase insert ignore into journalissuearticles values(CK);, lactate dehydrogenase insert ignore into journalissuearticles values(LDH);, alkaline phosphatase insert ignore into journalissuearticles values(ALP);, and gamma-glutamyl transferase insert ignore into journalissuearticles values(GGT); activities and total protein insert ignore into journalissuearticles values(TP); concentrations and serum protein electrophoresis. Serum ALT, AST, CK, and LDH activities were increased in serologically positive cows and significantly higher than those measured in healthy cows. However, there were no significant differences in ALP and GGT activities. TP and $\gamma$-globulin concentrations were increased in serologically positive cows and significantly higher than those of healthy cows, but there were no significant differences in albumin or $\alpha$1-, $\alpha$2-, and ß-globulin concentrations. Hence, Brucella infection has a detrimental effect on dairy cows` health and is accompanied with elevated serum ALT, AST, CK, and LDH activities and increased TP concentrations due to the increase in $\gamma$-globulin concentrations only.
Keywords : Cows, Brucella infection, serum enzymes activities, protein fractions