Schale Patrick, Arkenau Engel F, Schmitt Armin O, Dänicke Sven, Kluess Jeannette, Grümpel-Schlüter Angelika
Johann Heinrich von Thünen-Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries, Institute of Agricultural Technology, Bundesallee 47, 38116 Braunschweig, Germany.
Federal Ministry of Food and Agriculture, Directorate 82 Digital Innovation, Wilhelmstraße 54, 10117 Berlin, Germany.
Animals (Basel). 2023 May 5;13(9):1547. 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.
在实际条件下记录育肥猪的饮水量，并与计算得出的饮水量进行比较。该实验于2020年夏季对79头育肥猪进行。使用数据记录器记录气候数据，如温度和相对湿度。这些数据用于计算温湿度指数（THI）。结果发现，实测饮水量与计算饮水量之间有时存在相当大的差异。造成这种差异的一个可能原因可能是现有需水量方程的年代久远，因为近几十年来猪的育种有了明显发展，猪的性能也大幅提高。基于这些偏差，建立了六个新的饮水量方程，这些方程考虑了体重（BW）、温度、THI和采食量等变量。结果发现，应将THI和BW作为预测变量纳入一个方程，评估结果也很好。在实际应用中也应考虑使用该方程。总体而言，很明显仍需要进一步研究以使饮水量方程更加精确。这将需要一个更大的数据库。
