leftmargin=0 onload="Update()">
• Focus on the gridlines in the chamber which are
on the underside of the top slide
• Use the 4X objective lens first and then change to
the 10X
• It should then be possible to see a line of each grid
on each side of your field of view
• Strongylid eggs are about the same length as the
gridlines are wide (don’t confuse with coccidial
• Count the number of strongylid eggs in each
chamber, add them together and multiply by 50 to
give you a count of egg per gram of faeces