To operate efficiently, primary producers need to maximise the number of pregnant cows that give birth to live calves, while minimising the costs of doing so. Feeding cows that you think are pregnant, only to find out at calving that they are not, costs around $480 per head. Identifying non-pregnant cows early allows producers to cull and sell these animals, both saving cost and releasing cash flow. An Australian start-up, Agscent, are developing a Diagnostic Device that detects pregnancy in cows through a simple to administer breath test. Alternative tests require complex, specialised and invasive rectal intervention.