Follwing infections cause infertility in dairy cows
It is caused by bacterium named as Brucella abortus .The infection results in abortion of infected cow.
Brucellosis spread through viginal discharge of an infected cow or from aborted fetus.Breeding bulls which are infected can transmit disease to cows throug semens during breeding.
There is no treatment for the disease and infected animals should be slaughter to avoid losses
This disease is caused by a bacterium Campylobacter fetus.It is a venereal disease characterised by early embryonic death,infertility and occasionally abortion.The infection is transmitted mainly by natural service but may also be caused by AI using infected semen.In cows infection spread to uterus and oviduct causing endometritis.
Strepromycin can be used for the treatment of infection.Artificial insemination is,the best way to avoid infection.
Leptospirosis is a zoonotic disease caused by bacterium of genus Leptospira.The infection results in milk reduction,abortion and poor fertility
Cows can be easily treated with a course of antibiotics