Do you know what colour your cows are? asked vet Andrew Curwen at one of the Beef Expo seminars. Only by knowing this and adopting a national strategy will we be able to stamp out disease.
“It is important to know the disease status of your herd and the animals you are buying in order to minimise disease spread,” said Mr Curwen.
Cows can be viewed as being different colours depending on their disease status. A “red” cow is disease positive. Once she has fought off disease and become antibody negative, she can be viewed as “green”.
“Buying in pregnant animals creates an added risk – with diseases such as BVD, it is possible the cow may green, but the unborn calf may be red.”