Avaliação da intercorrência entre leucose enzoótica e tuberculose bovina em vacas leiteiras do Estado de Pernambuco

Abstract

This study was conducted to evaluate the complications of enzootic leukosis (EBL) and tuberculosis (TB) in dairy cattle herds in eight districts of the State of Pernambuco, from the establishment of the prevalence of bovine specific reagents for diagnostic tests and to verify the correlation between Enzootic leucosis, tuberculosis in cattle, the Leukocytes count and lymphocytes count between animals studied. We analyzed 662 serum samples from cattle raised in 15 dairy herds, distributed in eight municipalities of the State of Pernambuco, two of which located in Mesorregião Metropolitan of Recife, three in, five in Mesorregião of Agreste and four in Mesorregião of Sertão. 662 animals were tested serologically and hematology, the techniques of double Immunodiffusion in agarose gel (AGID) and the leucocyte count in the total and differential leukocytes, respectively, and 612 were evaluated allergic immune through the test for tuberculosis. The 15 herds examined, the prevalence of cattle that were positive to the tuberculin tests were AGID and 32.2% (213/662) and 14.1% (86/612), respectively. Most herds (86.6% - 13/15) contributed to the bovine reagent composition of these indices, especially high rates of 48.9% (22/45) and 30% (36/121) for TB and EBL respectively. Analyzing the correlation between variables total leukocytes and lymphocytes, we have total leukocyte is highly positively related with the variable lymphocytes (72%). The results obtained in this study, considering the analysis and interpretation of health aspects of leukemia and of bovine tuberculosis in herds examined, have concluded that the diseases studied, are widespread in the population studied, with significant levels of growth in leukemia and infection by bovine leukemia virus (VLB) and Mycobacterium bovis they are active and growing, with imminent risk of compromising the health of cattle herds, and the zoonotic nature of bovine tuberculosis, people who deal with cattle.