Could you choose the sex of your calves?
SCIENTISTS in the United States believe they have discovered the technology to do what farmers have wanted for thousands of years – control the sex of their animals.
Experts at XY Inc, based at Fort Collins in Colorado, have just completed the first successful experiment in “pre-selecting” the sex of horses.
The technique involves a machine called a flow cytometer. This separates sperm containing an X chromosome, which would produce a female embryo, from those containing a smaller male Y chromosome.
The technique was originally developed by the US Department of Agriculture, but was too slow. The scientists have now speeded up the process.
- The Guardian 17/09/98 page 8/9 (Guardian Online)