The first was control group, which contained 4% of fish meal were replaced with different proportions of detannery Ieather & Bone Meal(DLBM), BE—Feed Yeast(BE—FY)and Detannery Leather Meal(DLM).

其余五个组分别用不同比例的脱铬皮渣骨粉，BE—饲料酵母和脱铬皮革粉等量代替鱼粉，即试验组。

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Slide into a leather booth or sidle up to a lunch counter to enjoy an unpretentious meal while you can, because the classic diner may not be around for much longer.

BBC: New York City��s classic diners survive