Spontaneous acute poisoning by Crotalaria retusa in sheep and biological
control of this plant with sheep
After the diagnosis of acute Crotalaria retusa poisoning, 21 healthy sheep from the affected
flock were returned to the paddock and continued to consume the sprouting plants. Two
years after returning these sheep to the paddock, very few plants were still alive, and after
3 years, no C. retusa plants were observed. The sheep had neither clinical signs nor
biochemical alterations and delivered healthy lambs. It is concluded that resistant sheep
can be used for the biological control of C. retusa