http://jas.fass.org/cgi/reprint/1931/1/88.pdf
John Ruel Manning The Use of Marine Products in Animal Nutrition ...
the remaining so-called "green" scrap is dried and ground. In certain localities in Maine the oily herring scrap is dried di- ...

http://grande.nal.usda.gov/ibids/index.php?mode2=detail&orig... -
Fatty and defatted herring scrap fed to mink (Mustela vison) in ...
1, diets with 27% fatty herring scrap with 60 vs. 120 mg vitamin E kg(-1) feed, and 10 vs. 19% defatted herring scrap ensiled with formic and acetic acids ...




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Note added at 1 hr (2009-06-10 22:54:10 GMT)
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http://jn.nutrition.org/cgi/reprint/22/4/425.pdf
THE RIBOFLAVIN CONTENT OF FISH PRODUCTS
Samples 35 to 37 (herring scrap) represent a Japanese product ordinarily known to the trade as "sun-dried herring scrap." Representative samples ...

「鰊粕」 is the boiled, defatted and dried herring residues.

http://www.briancoad.com/Dictionary/M.htm
meat=dried fish or fish waste used as fertilizer, animal food or ground fine for use in soups. May be defatted, and is powdered or granular in form.

Used as "Herring meal was used as a fertilizer source" or "herring meal fertilizer".

I've seen "herring lees" as the translation of 「鰊粕」, but "lees" may sound more suitable with liquids like sake/wine.