What you are asking about is corn germ meal

Corn germ meal is a by-product of corn germ as raw material, after being pressed or soaked to extract oil. Also known as corn navel cake, before producing corn starch, the corn is soaked, broken, and the germ is separated. The corn germ meal is then made into oil. It is divided into two types: dry method and wet method. After extracting the oil, corn germ meal is obtained. Except for a few varieties that are protein feeds, most of the products are energy feeds.

Corn germ meal contains 18% to 20% crude protein, 1% to 2% crude fat, and 11% to 12% crude fiber. The amino acid composition of corn germ meal is similar to that of corn gluten feed. Although it belongs to the cake category, most of the products are mid-range energy feed according to the international feed classification principles. From the analysis of protein quality, although it is higher than the energy feed, the contents of various limiting amino acids are lower than those in corn gluten meal and cotton and rapeseed cakes.

The crude protein content and crude fiber content of dry-process corn germ meal are lower than that of wet-process corn germ meal, and the effective energy values ??of the two are similar. Mineral and trace element content varies depending on processing techniques.