In 1975 the national zoo was the first institution outside of new zealand to hatch a kiwi 而史密森尼国家动物园则是在新西兰以外，世界上仅有的4家繁殖几维鸟的动物园之一。
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This time they took a kiwi-fruit allergen called thaumatin-like protein ? which they knew would degrade quickly in the stomach by itself ? mixed it with pectin and exposed it to synthetic stomach conditions 这次，他们取一种称作索马丁样蛋白的猕猴植物过敏原（研究人员知道过敏原本身在胃中会很快被分解），并将其与果胶混合在一起加入到人工合成的胃内容物之中。
