Updated February 18, 2016. A fecal occult blood test (FOBT) is a non-invasive way to screen for blood in your stools, which can be a symptom of colon cancer. If a FOBT finds blood in your stools, you will be referred for further colon cancer screening, such as colonoscopy or flexible sigmoidoscopy.
A saddle with full quarter horse bars is designed to fit a horse with a wide, fairly flat back. A saddle with semi-quarter horse bars is designed to fit a horse with a medium-sized back. The primary difference between the two sizes is in the angle at which the bars are positioned and the width of the gullet.
Arabian: Have a narrow front (usually 6.5 6.75 gullet) similar to the Semi-QH bar but the back of the saddle has a flatter pitch angle. So the saddle goes from a little narrow in the front to flatter or wider in the back. Can sometimes fit non-Arabian horses.