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.
This would be called âbridgingâ. A saddle will also bridge if the gullet is too narrow and wonât allow the saddle to sit down properly in front. Secondly, the change in angle of the bars from the front of the tree to the back, referred to as theâ twistâ, must also match the horseâs rib cage.