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Table 1 Summary of quantities (kg) of representative feed ingredients imported to the US from China in 2013 and 2014a

From: Modeling the transboundary risk of feed ingredients contaminated with porcine epidemic diarrhea virus

Ingredient 2013 (kg) 2014 (kg)
Soybeans (conventional and organic) 89,469,255 70,940,336
Lysine hydrochloride 21,469,477 5,382,454
Soybean meal (conventional and organic) 6,632,960 7,214,863
Feed-grade tetracycline 1,411,251 1,418,012
D-L methionine 377,495 1,790,280
Vitamin E 12,640 14,194
Choline chloride 11,284 23,572
Vitamin A 1156 1094
Vitamin D 1043 1052
  1. a: Source = US Government Harmonized Tariff Schedule