Hormone history is written in the wool

RESEARCHERS from Western Sydney University have found pregnancy and stress in Merino ewes can be detected by analysing wool.

Hormone history is written in the wool Hormone history is written in the wool Hormone history is written in the wool Hormone history is written in the wool Hormone history is written in the wool

In a world-first study, researchers from Western Sydney University have shown pregnancy in Merino ewes can be detected by analysing wool. Photo courtesy Western Sydney University.

Western Sydney University researcher Dr Edward Narayan said that when animals perceive stress, hormones are released from the brain and ultimately those hormones are excreted in the hair follicle,