| 英文描述 | TRITRICHOMONAS FOETUS is a venereally-transmitted protozoan of cattle that causes reproductive wastage through early pregnancy loss, pyometra, fetal maceration, infertility, and abortions. Bulls are asymptomatic but the organism can be on the penis and preputial membranes and bulls are the primary vector. Following a period of infertility most cows recover although they occasionally carry infections into the next breeding season. Less common in dairy cattle because of the widespread use of artificial insemination. |