Estimates of Water Consumption of Growing Pigs under Practical Conditions Based on Climate and Performance Data

• Published in: Animals (Basel) 2023-05, Vol.13 (9), p.1547
• Main Authors: Schale, Patrick, Arkenau, Engel F, Schmitt, Armin O, Dänicke, Sven, Kluess, Jeannette, Grümpel-Schlüter, Angelika
• Format: Article
• Language: English
• Subjects: Accuracy; Animal culture; Animal husbandry; Animal welfare; Atmospheric pressure; Body temperature; Body weight; Carbon dioxide; Climate; Climate change; Climatic data; Data collection; Experiments; fattening pigs; feed; Feeds; Genetics; Hogs; Humidity; Relative humidity; Swine; Temperature; temperature-humidity index; THI; Ventilation; Water; Water consumption; Water requirements; Water supply
• ISSN: 2076-2615; 2076-2615
• DOI: 10.3390/ani13091547

The water consumption of fattening pigs was recorded under practical conditions and compared with calculated water consumption. The experiment was carried out in the summer of 2020 with 79 fattening pigs. Data loggers were used to record the climate data, such as temperature and relative humidity. These data were used to calculate the temperature-humidity index (THI). It was found that there were sometimes considerable discrepancies between the measured and the calculated water consumption. One possible reason for this discrepancy could be the age of the existing water requirement equations, as in recent decades there has been a clear breeding development and thus a strong increase in pig performance. Based on these deviations, six new water consumption equations were established, which considered the variables body weight (BW), temperature, THI and feed consumption. It was found that the THI and BW should be included in one equation as predictor variables and the evaluation also showed good results. Its use, in practice, should also be considered. Overall, it became apparent that there is still a need for further research to make water consumption equations more precise. This would require a larger database.