| 英文描述 | While grazing in the Haizi valley of China, goats and sheep developed a syndrome called fleece eating (shimao zheng) which disappeared when the animals were grazed out of the valley, and recurred upon subsequent return. Prevalence was greater in goats than in sheep, signs usually ocurred between November and May, and animals of both sexes and a wide range of ages were affected. Animals would bite off the fleece from their own bodies or from other animals. The hip, belly and shoulder were most often attacked. This is believed to be a sulphur deficiency. |
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