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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