Development of a Water Stick to Measure Nipple Waterer Flow Rates

Inadequate drinking water supplies have been cited as a major reason for poor weight gain in broiler production. One of the limiting factors is nipple waterer flow rate. Research demonstrated a constant water flow rate of 25 mL/min impeded BW by approximately 156 g (0.34 lb) at 6 wk of age compared with those having 75 mL/min through the grow out. A device to measure nipple flow rates was developed from polyvinyl chloride (PVC) pipe, pipefittings, aluminum screen, and a centrifuge tube. The instrument is 41 in. tall so that the user stands to obtain a measurement, eliminating the need to kneel in litter while activating the nipple. This water stick features a screened trip plate to activate the nipple, a clear polypropylene measuring tube, and a pour spout for discarding the sample. Following the description herein, the stick can be easily constructed so that the conscientious integrator, grower, or researcher can assure flocks an adequate drinking water supply.