All purchased supplies are initially registered in Supplies, stock levels and history. Herd supply records are used to register the use of supplies that are allocated to herd (or lot/group) rather than being recorded against an individual animals.
Items such as disinfectants, udder creams, foot trimming knives etc cannot be detailed animal by animal. The Herd supply records provides the method for recording their use. The items used are deducted from the current stock thus generating re-orders when stock levels fall below the re-order level.