It produced the same results as tests using wool sheep and horses.

VOA: special.2009.08.03

Also,hair sheep require less care than wool sheep.

VOA: special.2009.08.03

Shearing is when a sheep gets a haircut so the fleece can be made into wool.

VOA: special.2009.07.21

"Having to shear the sheep for wool is actually very costly and labor intensive.

VOA: special.2009.08.03