The effect of milk from cows infected with bovine leukemia virus on tumor development in Balb/c mice

The article describes studies on the effect of milk from immunodiffusion test - positive leukemia cows on the dynamics of tumor development in BALB/c mice caused by syngeneic plasmacytoma (myeloma) Sp.2/0 - Ag.8 cell line. The research results have shown that raw milk from cows infected with bovine leukemia virus significantly increases the rate of tumor development in both male and female mice. Boiling of that milk does not reduce its negative effect on the organism of animals. Female mice are more susceptible to milk from cows infected with bovine leukemia virus. After including milk from cows infected with the bovine leukemia virus into the diet of animals, a significant difference in tumor size from the control group of mice was manifested in both males and females, but the volumes of tumors in females were an order of magnitude larger.