When Martin Ziron and researchers at the Institute of Animal Breeding and Genetics in Giessen, Germany tested various heating methods on 1,400 piglets during their first few weeks of life, waterbeds won hands down.

• 德国吉森动物饲养遗传研究所的研究员马丁和他的同事给1400只小猪在出生后几周内试用了各种保温方法，试验证明水床是最受小猪欢迎的。