<p>I'm a novice in 3D printing. I have a <a href="https://en.wikipedia.org/wiki/Aleph_Objects#LulzBot" rel="noreferrer">Lulzbot Kittaz 3D printer</a> with a hexagonal hot end of 0.35&nbsp;mm. I have printed a test subject, and while I was printing I encountered this extrusion problem. I'm using ABS with 230&nbsp;°C hot end temperature and 85&nbsp;°C bed temperature. What kind of problem is this and how should I rectify it?</p>

<p>I took this photo when the printer printed the first layer:</p>

<p><a href="https://i.stack.imgur.com/HtTv4.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/HtTv4.jpg" alt="First layer of print"></a></p>

It looks like you are not extruding at the correct rate. I would check your slicer settings for nozzle and filament size. Also check and calibrate for your filament diameter.
It looks like you could be getting better adhesion too. Lulzbot recommends a 110C bed temperature. That might help. (lulzbot.com/store/filament/abs under specifications)
These are some good resources to troubleshoot prints,
RepRap
All3DP
Simplify3D