Dairy

South Africa produces most of the region's milk. Its formal market bought 3,339,272 tonnes of unprocessed milk in 2023, from 882 producers in January 2024, with an average herd of about 800 cows per producer. The industry has consolidated hard: the number of producers has fallen by more than half in a decade, and most milk now comes from large pasture-based herds in the Eastern Cape, KwaZulu-Natal and the Western Cape. Article 71 sets this against Kenya, where hundreds of thousands of smallholders, aggregated through co-operatives and collection centres, have built Africa's most inclusive dairy sector.

The local markets are rebuilding. Zimbabwe produced a record 121.84 million litres of raw milk in 2025, up six percent on 2024, from about 40,575 milking cows, after a long contraction. Zambia's milk comes from a small commercial sector and a large traditional herd, and growth is held back by cold-chain reach and aggregation. Botswana produces only about a tenth of the milk it drinks; local farmers produced 5.9 million litres between April and December 2023. Namibia produced 16.74 million litres in 2025, just over half of its supply, and imported the rest.

Most milk is sold raw to a processor, who collects it from the farm or a collection centre, tests it and pays monthly on volume, butterfat, protein and hygiene. A handful of large processors buy most of the milk in each market, which gives them the stronger hand in setting the price. In Zimbabwe the average producer price was about US$0.58 a litre in 2025, close to the cost of production. Smaller farms also sell raw or cultured milk directly to households, schools and informal traders, where local rules allow, at a better price per litre but in smaller volumes.

South Africa trades dairy products both ways, exporting to its neighbours and importing powders, cheese and butter when world prices are low. Botswana and Namibia import most of their dairy products, much of it from South Africa, and both have used import controls to give local producers room to grow. Zimbabwe has cut its reliance on imported milk powder as local production has recovered. Long-life milk and powder travel well; fresh milk does not, which protects local producers of fresh products.

The chain runs from genetics and feed to the farm, then to collection and chilling, the processor, the retailer and the household. Milk is perishable on a clock: it must be cooled within hours and reach a processor within a day or two, which gives power to whoever controls the chilling and collection. A small farm enters by selling to a processor through a collection centre or co-operative, by selling fresh and cultured milk locally, or by processing its own milk into yoghurt, maas or cheese for local shops.

Raw milk sold to the public must meet food-safety rules, and processors test every delivery for hygiene, somatic cell count and antibiotic residues. Herds must be tested for brucellosis and tuberculosis, both of which pass to people through raw milk. A small processor needs a registered, inspected facility and a certificate of acceptability or its local equivalent. Foot-and-mouth outbreaks can stop the movement of animals and milk products. The cold chain, a bulk tank on the farm or a collection centre nearby, is the physical barrier most small producers must cross first.

Real minimum capital. In-calf heifers or cows of a proven dairy breed, a milking shed and machine or a hygienic hand-milking routine, a cooling tank or access to one, water, fodder and pasture or bought feed for months, and veterinary costs. Buying good animals is the largest single cost.

Input choke points. Quality dairy animals and semen, affordable feed and fodder through the dry season, veterinary services, and a cold chain to keep the milk.

Offtake options. A processor through a collection centre or co-operative, local households and schools for fresh and cultured milk where rules allow, and your own yoghurt, maas or cheese sold to local shops.

Who to call. The processors and collection centres in your area, the dairy farmers' association, breed societies and semen suppliers, feed companies, and the state veterinary office.

The verdict for a small holding. A small herd of five to twenty cows works where a collection centre or processor is within reach, or where the owner turns part of the milk into cultured products for a local market. Secure the buyer and the cold chain first, buy healthy, tested animals, and feed them well: in dairy, feed is yield.

A dairy heifer is first calved at about 24 months. She then milks for a planned lactation of about 305 days, is dried off for about 60 days, and calves again, so a well-run cow calves about once a year. Milk is collected every day or two and the processor pays every month, which makes dairy the steadiest cash flow in farming once the herd is milking. The long wait is at the start: rearing heifers, or the capital to buy in-calf heifers, before the first litre is sold.

Raw milk is the start of a family of products, and every owner should know the steps even if a technologist runs them. Milk is pasteurised, heated to kill bacteria, and sold as fresh milk. Separated, it gives cream, which is churned into butter. Cultured, live bacteria are added, it thickens into yoghurt and into maas, also called amasi or mabisi. With rennet added it sets into curd for cheese, leaving whey, which goes to drinks and feed. Each step adds value to a litre of milk, which is why a dairy that processes even part of its own milk keeps more of the margin. The bull calves and old cows go to the beef market.

Milk is paid on volume and on its components and hygiene. Processors pay more for higher butterfat and protein, and add bonuses or penalties for the somatic cell count, a measure of udder health, and the bacterial count, a measure of hygiene. South African regulations set the upper limit for the somatic cell count in raw milk at 500,000 cells per millilitre. Milk with antibiotic residues is rejected, and one contaminated delivery can spoil a whole tanker.

Origin and IP. A yoghurt, maas or cheese recipe and its starter culture are trade secrets; a dairy brand is protected with a trademark.

In dairy, the cow's health is the milk's price, and the udder matters most. This is the owner's checklist, not the science: enough to protect the investment and supervise the expert.

• Mastitis. Clean milking routine, test every cow and treat cases; it is the most costly dairy disease.
• Lameness. Dry walkways and hoof care; a lame cow eats and milks less.
• Milk fever and metabolic disease around calving. Feed the dry cow correctly.
• Brucellosis and tuberculosis. Test the herd; both pass to people through raw milk.
• Tick-borne disease, lumpy skin and foot-and-mouth. Vaccinate and dip on the vet's calendar.

When to call the expert. Call the veterinarian for a cow down after calving, clots in the milk, a sudden drop in yield or any abortion.

These are the specialists a dairy business needs as it grows. You do not need to do their work; you need to know who they are, when to bring them in and what to expect from them. Module C11 teaches how to recruit, contract and manage them.

Decide whether you will sell raw milk to a processor or process part of it yourself. Plan the herd in T-M21-02 Herd Growth Projection, cost the feed in T-M21-03 Feed Budget, and build the herd's budget in T-M21-01 Enterprise Budget. If you will process, test the extra margin in T-M21-04 Processing Margin, and compare your milk price in T-M21-05 Market Price Comparator. Name the processor or collection centre, the distance to it and how the milk will be cooled.

Calculators: T-M21-01 Enterprise Budget, T-M21-02 Herd Growth Projection, T-M21-03 Feed Budget, T-M21-04 Processing Margin, T-M21-05 Market Price Comparator.

Library sources: LIB-A071, LIB-A059, LIB-A003, LIB-A146.