Cattle Keeping — Frequently Asked Questions

For small-property operators and beginners in temperate southeastern Australia, the Angus and the Murray Grey are the most commonly recommended starting breeds. Both are polled (no dehorning required), have quiet temperaments that make them genuinely safe to work, and perform reliably on improved pasture in temperate conditions. For subtropical and tropical northern Australia, a Brahman cross or Droughtmaster is essential — no British or European breed can replicate the heat and tick tolerance of Bos indicus-derived cattle in the tropics.

In temperate southeastern Australia on improved pasture, 0.4 to 0.8 adult cattle per acre is a conservative sustainable rate. In high-rainfall areas on excellent improved pasture, up to 1.5 cattle per acre is possible in good seasons. In semi-arid country on native pasture, 0.1 to 0.2 per acre is more realistic. Always stock to your driest season capacity, not your best. One Dry Sheep Equivalent (DSE) equals approximately one cow without a calf or one steer; use DSE to compare stocking rates across species.

The non-negotiable foundation is annual clostridial vaccination with a 5-in-1 (or 7-in-1 including leptospirosis). Calves receive their first dose at marking (4 to 8 weeks) with a booster at weaning; cows receive annual boosters 4 to 6 weeks before calving. Additional vaccines to consider: IBR and BVD (particularly for properties purchasing cattle or with known respiratory disease history), tick fever (for cattle being moved into tick-endemic areas), and vibriosis/leptospirosis based on local disease prevalence.

Pregnancy test 6 to 8 weeks after the end of the joining period. This timing allows early embryos to be detectable by rectal palpation or ultrasound, while still giving you adequate time to cull non-pregnant cows before the expensive winter or dry-season feeding period. Culling empties before this period is one of the highest-returning management interventions available — an empty cow consumes the same feed as a pregnant cow but produces no calf.

Cattle have a gestation period of approximately 283 days — just over 9 months. The normal range is 279 to 287 days; Brahman and Bos indicus-derived cattle often have slightly longer gestations than British breeds. Heifers (first-calf females) typically calve slightly earlier than mature cows. Enter your mating date into our gestation calculator to get the expected due date.

Weaning is typically done at 6 to 8 months of age in most Australian beef systems. Fence-line weaning — separating calves and cows with a fence they can see through but not cross, for 7 to 10 days before complete separation — significantly reduces post-weaning stress compared to abrupt complete separation. Ensure weaners have access to quality hay, water, and a mineral supplement, and monitor closely for respiratory disease (BRD), which is the primary health risk in the post-weaning period.

Body condition scoring (BCS) is a 1 to 5 scale assessment of fat cover over the backbone and ribs, conducted by palpation (running your hand over key anatomical reference points) rather than visual assessment. A score of 3 is optimal for most production stages; cows below BCS 2.5 at calving have reduced milk production, lower calf survival, and extended post-calving anoestrus that reduces next-season conception rates. Score your herd before joining and before calving, and supplement strategically to maintain target BCS at these critical periods.

Frothy bloat — the most common type, occurring on lush legume pasture (clover, lucerne, medic) — is caused by gas trapped in stable rumen foam. Prevention: use poloxalene (a bloat prevention agent) in water or supplement before and during risk periods; introduce lush legume grazing gradually; allow cattle to fill on dry pasture before moving to legumes. Treatment of an acute bloated animal: administer poloxalene or vegetable oil via stomach tube; walk the animal gently; call your vet immediately for severe cases that do not respond quickly.

The optimal slaughter age depends on the breed, the feeding system, and the target market. Angus and other British breeds on grain finishing are typically slaughtered at 18 to 22 months at 450 to 550 kg liveweight, producing carcases of 240 to 300 kg. Grass-finished cattle in longer-finishing systems may be 24 to 30 months. Wagyu on extended grain programs are typically 26 to 36 months. Always consult the specifications of your processor or purchaser before setting finishing targets.

Yes, particularly in summer and in hotter climates. Cattle without adequate shade in hot conditions lose feed intake significantly, reducing growth rates and milk production, and can suffer heat stress with potential mortality in extreme conditions. Shade requirements increase with humidity — the temperature-humidity index (THI) is the standard measure of heat stress risk in cattle. Natural shade (trees) is preferable; if not available, install shade structures particularly around water troughs where cattle congregate.