I don't think that Bovine leukemia virus is a Zoonosis. It is true that in cattle this virus can produce patomorphological changes in lien and limph nodes as well as changes in leucocytes similar with human leukemia but it is not zoonotic disease.

I think the zoonotic feature of this virus required more studies , so i need a person intrested in this subject share me

from point of my view its not zoonotic

Bovine leukemia virus needs more researches in vitro and in vivo to ascertain it is zoonosis or not.

BLV infected cattle herds are found worldwide but in human further researches are needed.

I agree with most of the answers here. While the virus has been identified in human tissues, there is not enough research to establish the risk profile for human disease. Frankly, more research is needed to understand this disease in cattle as well.

I agree with most of the answers. the disease is full studed in cattle and the other animals experimentally, and inspite of the detection of viral nucleic acid in humen tissues as (breast cancer), there is no any serological evidence for humen infected, also there is no enough studies about that. 

Please take a look at this useful link.

https://www.omicsonline.org/open-access/Olaya-bovine-leukemia-zoonosis-associated-with-breast-cancer-in-humans-jmsp-1000110.pdf