A Vaulted Free Range (FRD) where dairy animals have free access to their stall to be fed and milked at the same time, comprising: a. a plurality of s stalls, where s is an integer equal to or greater than one; at least one of said stalls is characterized by a front side and an opposite rear side in which a dairy animal is accommodated, at least temporarily, with the head opposite to the front side; b. a plurality of m major lives (MLA), m is an integer equal to or greater than one; at least one of said MLAs is in connection with at least one of said stalls by means of a plurality of g gates, g is an integer equal to or greater than one; wherein said FDR further comprises c. a substantially horizontally positioned elevated rail system comprising a plurality of e raised rails, e is an integer equal to or greater than one; d. a plurality of n mobile milking units (MMUs), n is an integer equal to or greater than one, each of said MMUs configured to transport on said elevated rail to a dairy animal in its stall and to milk the animal, while it eats.
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