Identity and Ancestry Foundations
Anchor every Holstein record to her ear tag or herd management number, with birth date, sire, and dam, and file registration and ancestry papers for registered cows alongside. In a dairy herd, one cow passes through many hands and many routines, and a stable identity is what lets her milk, breeding, and health entries accumulate into a single trustworthy history instead of scattered notes on different whiteboards.
Milk Production by Lactation
Record calving date as the start of each lactation, then log milk yields at regular test days or from your parlour system, noting days in milk at each reading. Holsteins are managed on production, so the shape of a cow's lactation matters as much as its total: a cow that peaks well and holds yield is a different proposition from one that starts high and fades. Keep bulk or individual quality results with the same record where you receive them, since a high-yielding cow with recurring quality problems is not the asset her volume suggests.
Breeding, Pregnancy, and Dry Periods
Log every service date and the sire used, pregnancy diagnosis results, expected calving date, and the date the cow is dried off. Fertility is where large dairy herds quietly lose money, and these dates reveal cows taking repeated services, long gaps between calving and conception, or dry periods that ran far shorter or longer than planned. Heifers need the same discipline: birth date, breeding weight or age, and first calving date build the replacement pipeline your herd depends on.
Health Treatments and Milk Withdrawal
Record illnesses, lameness, udder problems, and every treatment by cow and date, with any milk withdrawal period your veterinarian advises written on the treatment entry itself. That single habit protects the bulk tank and the herd's reputation. Repeat problems deserve a flag on the cow's main record, so a cow treated for the same issue across successive lactations is recognised as a pattern at breeding or culling decisions, not rediscovered each time.
Culling and Replacement Decisions
Close the record with the outcome and reason: retained, sold, or culled for yield, fertility, health, or temperament in the parlour. Read alongside production records, cull reasons show whether the herd is improving or churning.
Reading a Holstein Record Before Breeding Decisions
Before a Holstein cow is served again, her record should answer three questions quickly. How is the current lactation actually progressing compared with her previous one at the same stage? How long has she been calved, and did any health problem in the weeks after calving delay her return to cycling? Is there a treatment, lameness, or udder history that should change the mating plan or end it? Keeping those answers on one cow page, rather than split between a parlour system, a treatment book, and a breeding chart, is what makes the decision consistent from cow to cow. It also protects relief milkers and new staff, who can read a cow's situation in a minute instead of relying on whoever happens to remember her story that morning.
Keeping each Holstein's lactation, breeding, and treatment history in a KinsLe Pet Passport gives you one portable packet for vet visits, milk buyers' questions, and sale days.