Strauch-Sürken L, Wendt M
Prof. Dr. Michael Wendt, Klinik für kleine Klauentiere, Stiftung Tierärztliche Hochschule, Bischofsholer Damm 15, 30173 Hannover, E-Mail:
Tierarztl Prax Ausg G Grosstiere Nutztiere. 2015;43(4):207-15. doi: 10.15653/TPG-150068. Epub 2015 Jul 13.
On a conventionally managed piglet-producing farm, novel infrared (IR) heating plates for piglets in the farrowing pens were tested for their suitability and compared with common warm-water (WW) heating plates.
In total, 134 litters (summer n = 82, winter n = 52) were investigated, which were housed on IR or WW heating plates, respectively, with or without an extra cover plate (groups 1-4). To determine the influence of the different heat sources, the wound healing after castration and tail docking, the umbilical regression and the weight gain of the piglets were investigated. Additionally, the lying behavior of the piglets and the position of the sows' udder at the time of farrowing were examined with regard to the heating plates. Furthermore, the energy consumption and costs were compared.
The piglets housed on IR heating plates displayed better wound healing after castration and tail docking than the piglets housed on WW plates. The best results were obtained in piglets kept on IR heating plates with an extra cover plate. In addition, significant benefits were demonstrated for the usage of IR heating plates regarding umbilical regression. The piglets kept on IR heating plates had a slightly better weight gain in summer, whereas there were no differences between groups during winter. The lying behavior in the creep areas was similar in all groups. In general, with increasing age the percentage of time piglets spent in the lying position on the plates decreased. The percentage of time lying on the plates was higher in winter than in summer. At farrowing, 74.6% of all investigated sows directed their udder towards the heating plates. With the IR heating plates, this behavior occurred significantly more often. The energy consumption (kWh) per litter was significantly lower for the IR heating plates (electric power) both in winter and summer in comparison with the WW plates (gas). The energy costs were comparable in summer, but were higher for the IR heating plates in winter.
IR radiation of heating plates has a positive influence on wound healing after castration and tail docking as well as on umbilical regression. In addition, the lying behavior of sows at farrowing is influenced by the IR radiation. Despite the lower energy consumption of the IR heating plates, the most profitable system has to be determined individually for each farm.
在一个传统管理的仔猪生产农场，对产仔栏中用于仔猪的新型红外（IR）加热板的适用性进行测试，并与普通温水（WW）加热板进行比较。
总共调查了134窝仔猪（夏季n = 82，冬季n = 52），它们分别饲养在IR或WW加热板上，有或没有额外的盖板（1 - 4组）。为了确定不同热源的影响，研究了仔猪去势和断尾后的伤口愈合情况、脐带退化情况以及体重增加情况。此外，还就加热板对仔猪躺卧行为以及产仔时母猪乳房位置进行了检查。此外，还比较了能源消耗和成本。
与饲养在WW加热板上的仔猪相比，饲养在IR加热板上的仔猪去势和断尾后伤口愈合情况更好。在带有额外盖板的IR加热板上饲养的仔猪取得了最佳结果。此外，使用IR加热板在脐带退化方面显示出显著益处。饲养在IR加热板上的仔猪在夏季体重增加略好，而在冬季各组之间没有差异。所有组在保育区的躺卧行为相似。一般来说，随着年龄增长，仔猪在加热板上躺卧的时间百分比下降。冬季在加热板上躺卧的时间百分比高于夏季。产仔时，所有调查母猪中有74.6%将乳房朝向加热板。使用IR加热板时，这种行为出现的频率明显更高。与WW加热板（燃气）相比，IR加热板（电力）每窝仔猪的能源消耗（千瓦时）在冬季和夏季均显著更低。夏季能源成本相当，但冬季IR加热板的能源成本更高。
加热板的红外辐射对去势和断尾后的伤口愈合以及脐带退化有积极影响。此外，产仔时母猪的躺卧行为受红外辐射影响。尽管IR加热板能源消耗较低，但每个农场都必须单独确定最具盈利性的系统。
