Bruininx E M, van der Peet-Schwering C M, Schrama J W, den Hartog L A, Everts H, Beynen A C
Research Institute for Pig Husbandry, Rosmalen, The Netherlands.
J Anim Physiol Anim Nutr (Berl). 2001 Apr;85(3-4):81-7. doi: 10.1046/j.1439-0396.2001.00305.x.
Three batches of weanling pigs (total n=310 pigs) were used in a 34-day experiment to validate the use of an IVOG feeding station as a tool for monitoring individual feed intake of group-housed weanling pigs. An IVOG feeding station for weanling pigs consists of a single-space dry feeder placed on a load cell in combination with electronic identification. Data of 192 weanling pigs (18 pens) fed by IVOG feeding stations were used to develop a protocol for the screening of IVOG data. To assess the quality of the IVOG data, the feed intake per pen computed from the screened IVOG data was compared with the feed intake calculated from feed weighing. To assess the suitability of the use of IVOG feeding stations under practical pig husbandry conditions, performance of 96 weanling pigs fed by the IVOG feeding stations was compared with that of 118 weanling pigs that were fed using commercial single-space dry feeders (11 pens). Feed intake per pen computed from the IVOG data was similar to the feed intake calculated from feed weighing (average recovery 101.1%) for all test periods (p > 0.1). Furthermore, feed recovery did not differ among feeding stations (p > 0.1). During the first 13 days after weaning, the average daily feed intake (ADFI) of weanling pigs fed by the single-space dry feeders was higher (p < 0.05) than that of weanling pigs fed by the feeding stations. Average daily gain and gain to feed ratios did not differ (p > 0.1) between both feeding systems. During the remaining 21 days and averaged over the entire experimental period, performance did not differ between the feeding systems (p > 0.1). It can be concluded that IVOG feeding stations for weanling pigs are a suitable tool to monitor individual feed intake of group-housed weanling pigs.
在一项为期34天的实验中，使用了三批断奶仔猪（共310头）来验证使用个体变量进食量监测系统（IVOG）饲喂站作为监测群饲断奶仔猪个体采食量工具的可行性。用于断奶仔猪的IVOG饲喂站由放置在称重传感器上的单空间干式饲喂器与电子识别系统组成。使用由IVOG饲喂站饲喂的192头断奶仔猪（18个猪栏）的数据来制定筛选IVOG数据的方案。为了评估IVOG数据的质量，将根据筛选后的IVOG数据计算出的每栏采食量与通过饲料称重计算出的采食量进行比较。为了评估在实际养猪条件下使用IVOG饲喂站的适用性，将由IVOG饲喂站饲喂的96头断奶仔猪的生长性能与使用商用单空间干式饲喂器饲喂的118头断奶仔猪（11个猪栏）的生长性能进行比较。在所有测试期间，根据IVOG数据计算出的每栏采食量与通过饲料称重计算出的采食量相似（平均回收率101.1%）（p>0.1）。此外，不同饲喂站之间的饲料回收率没有差异（p>0.1）。在断奶后的前13天，使用单空间干式饲喂器饲喂的断奶仔猪的平均日采食量（ADFI）高于使用饲喂站饲喂的断奶仔猪（p<0.05）。两种饲喂系统之间的平均日增重和料重比没有差异（p>0.1）。在剩余的21天以及整个实验期间的平均值中，两种饲喂系统的生长性能没有差异（p>0.1）。可以得出结论，用于断奶仔猪的IVOG饲喂站是监测群饲断奶仔猪个体采食量的合适工具。
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