| 摘要 |
<p>To bring about calmer conditions among the pigs in a pigsty, the self-watering system's drinking valve (1) having an activation nipple (3) is provided with more than one outlet hole (7, 8) for drinking water. When a pig activated the nipple (3) on the drinking valve (1) with its snout, water flows from the water supply pipe (4) out through the outlet holes or nozzles (7, 8) into the trough. A single pig wanting to drink will thus provide all the pigs in the relevant sty with sufficient drinking water. Moreover, a more uniform moistening of the feedstuff is achieved when the pigs are being fed; if just one pig wants water, the whole of the trough is watered. If the outlet holes or nozzles (7, 8) are dimensioned in such a manner that the holes or nozzles (8) nearest to the valve provide less water than the other holes or nozzles (7), it is further ensured that the pig which activates the nipple (3) does not cease to do so before there is water enough for all the pigs in the sty.</p> |
