Minecraft wiki entry for Experience_farming, associated text: With these enchantments and while fishing outdoors, each minute you will make an average of 8 catches, bearing experience orbs worth an average of 28 XP. Any Mending equipment worn may take 1 XP from each orb, perhaps reducing the total as low as 20 XP. The rod itself will average 1 damage per four catches on average, and if it only has one point of damage it will repair that for free! If multiple items are being mended, the rod may take a second point of damage before it mends, and then take an XP for its next mending. Mending will affect any armor worn and the rod, but an additional item can be included by placing it in the off-hand. Total yield is thus 400 XP/game day (1200/real-time hour) if items are being mended, or 560/day (1680/hour).