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    Rights: DairyNZ Published 31 March 2021 Size: 780 KB Referencing Hub media

    The omasum is made up of lots of folds of tissue, almost like a leaf. This creates a large surface area to absorb water. It also acts as a filtration system and only allows fine particles and small amounts of fluid into the abomasum.

    Image: Omasum with arrow showing the direction of food. © DairyNZ.