Dairy Goat Feed: What It Contains and How to Choose the Right Diet

By Dr Duncan Houston

Feeding dairy goats well starts with understanding what each doe needs to maintain her health and produce milk. Her diet must supply enough energy, protein, fibre, vitamins and minerals for her size, stage of lactation and level of production. Increasing grain without checking the rest of the ration can upset rumen health and reduce milk fat.

Whether you milk two goats for the household or manage a commercial herd, the useful questions are much the same: what are they actually eating, what is that diet providing, and how are they responding?

The aim is sustained milk production from healthy does, with feed costs that make sense.

Quick Answer

Dairy goats need good-quality forage, unrestricted clean water and a balanced mineral supply. Concentrates can fill the energy and protein gaps left by forage, particularly during demanding stages such as early lactation. Choose feed around the complete diet and the doe’s production needs, then monitor milk yield, appetite and body condition.

What is standard dairy goat feed?

There is no single standard recipe that suits every dairy goat.

A feeding programme usually combines forage with concentrates as needed. These may come as pellets, textured mixes or farm-mixed rations.

Check the intended use. A lactation supplement designed to accompany hay differs from a complete ration or a mineral supplement. Follow the feeding directions for the product.

Common ingredients include:

Feed component	Typical ingredients	Purpose
Forage	Pasture, grass hay, lucerne hay and suitable silage	Supplies fibre and contributes energy, protein and minerals
Cereal grains	Barley, oats, maize and wheat	Provide concentrated energy
Protein ingredients	Soybean meal, canola meal and suitable grain legumes	Help meet protein requirements when forage supplies too little
Digestible fibre ingredients	Beet pulp and soybean hulls	Supply fermentable fibre and energy
Mineral and vitamin premixes	Formulated sources of calcium, phosphorus, salt, trace minerals and vitamins	Balance nutrients missing from the other ingredients

These ingredients are combined in different proportions according to feed quality and production needs. Digestible fibre ingredients can be useful, but their inclusion does not remove the need for sufficient physically effective forage fibre.

Start with forage quality

Leafy, digestible forage supports nutrient intake. Goats also sort their feed, so check what remains in the feeder. A rack full of rejected stalks does not necessarily mean the goats have plenty of useful feed.

Silage can form part of a dairy goat ration when fermentation, storage and feed-out are well managed. Spoiled or poorly fermented forage can cause illness, including listeriosis, and should not be fed.

How to choose feed for dairy goats

1. Identify the animals you are feeding

Record each doe’s approximate weight, body condition, milk yield, stage of lactation and pregnancy status. Young does may still need nutrients for growth while producing milk.

Where practical, group animals with similar requirements. One concentrate allowance across the whole herd can leave productive does short while overfeeding animals with lower needs.

2. Find out what your forage provides

For purchased hay or conserved forage, request a recent analysis or arrange representative sampling. Useful results include dry matter, metabolisable energy, crude protein and fibre measures such as neutral detergent fibre.

Dry matter is the feed remaining after water is removed. It lets you compare feeds fairly: a kilogram of wet silage contains less actual feed material than a kilogram of hay.

Have a livestock nutritionist interpret the results alongside likely intake. A feed analysis describes the sample; the ration must account for how much each doe eats.

3. Match the concentrate to the forage

A higher protein number on the bag does not automatically make a feed better.

Lucerne-rich diets may need a different supplement from diets based on lower-protein grass hay. The concentrate should supply what is missing from the forage.

The protein percentage of a concentrate is also different from the protein percentage of the complete diet. That depends on the amounts and composition of every feed eaten. Energy supply must be considered alongside protein because both affect the nutrients available for milk production.

4. Check the whole mineral programme

Use a mineral programme suitable for goats and the feeds available on your property. Count minerals already present in pellets, forage, water and separate supplements.

Goats generally require more dietary copper than sheep, so sheep minerals may be inadequate. However, goats can still suffer copper toxicity. Excess selenium is also dangerous.

Calcium, phosphorus and other minerals need balancing across the whole ration, especially around kidding and during lactation. Adding several supplements “just in case” can create an oversupply.

5. Make changes gradually and watch access

Introduce grain or pellet changes progressively, generally over about two weeks, using an appropriate transition plan. Maintain adequate forage fibre and avoid sudden increases.

Provide enough feeding space, keep supplementary feed off the ground and check whether dominant goats are excluding quieter animals. Watch for sorting and changes in appetite, cud chewing or droppings. A ration only works when the intended animals can eat it.

Divide concentrate into manageable meals. Large grain feeds at milking can create digestive problems, even when the total daily allowance looks reasonable. Discuss meal size and feeding frequency with your nutritionist.

Adjust feeding through pregnancy and lactation

Stage	Main feeding priority
Dry period	Maintain appropriate condition and avoid excessive weight gain
Late pregnancy	Meet increasing demands from developing kids despite limits on feed intake
Early lactation	Support rising milk production while limiting excessive loss of body reserves
Mid lactation	Match intake to ongoing production and review condition
Late lactation	Adjust concentrate as yield changes and restore condition where needed

Milk production can rise faster than feed intake after kidding, leaving the doe drawing on body reserves. Plan the transition into lactation in advance.

Does carrying multiple kids deserve particular attention in late pregnancy. Both thin and overconditioned does can develop pregnancy toxaemia. High-producing dairy goats can also develop lactational ketosis after kidding. A doe that becomes dull, stops eating or loses production suddenly needs prompt veterinary assessment.

Water and comfort affect the result

Provide clean drinking water at all times. Check trough cleanliness, access and refill speed when demand is high. Water requirements change with weather, feed moisture and milk production; a fixed allowance can leave productive animals short.

Shade, ventilation and clean, dry resting areas also matter. Heat can reduce feed intake and milk output, so feeding adjustments should go alongside improvements in comfort.

Measure milk production alongside body condition

Keep individual milk records where practical, and compare does at similar stages of lactation. Record feed changes so you can assess the response.

Use a consistent body condition scoring method. A dairy doe’s appearance alone can be misleading, and changes in body reserves help show whether her diet is keeping pace with production. Interpret scores in relation to her stage of lactation.

Where kids remain with their mothers, the milk collected in the bucket is only part of total production. Allow for what the kids drink. Their colostrum and milk needs must be met, with growth and health monitored as part of the feeding programme.

When milk production falls, investigate the cause

Review forage quality, actual intake, water supply, weather and any recent management changes. Check whether the decline fits the doe’s stage of lactation.

Examine udder health as well. Mastitis can affect production even when milk looks normal. Somatic cell counts in goats need careful interpretation because stage of lactation and other factors can influence them; a cattle threshold should not simply be applied to a goat.

Worm problems also deserve consideration, particularly in grazing herds. Use faecal egg counts and a locally appropriate goat parasite programme to guide decisions, rather than assuming every drop in production requires another drench.

What you notice	Why it matters	What to do
Off feed, dull or weak in late pregnancy or soon after kidding	Pregnancy toxaemia, ketosis, low calcium or another illness may be involved	Contact your veterinarian promptly; inability to stand is an emergency
Painful or swollen udder, clots or other abnormal milk	Mastitis needs investigation	Obtain veterinary advice promptly and keep affected milk out of the supply
Diarrhoea, abdominal discomfort or reduced rumination after extra grain	Acidosis or another digestive disorder is possible	Stop further concentrate and seek veterinary advice
Collapse, marked bloating or breathing difficulty	Potentially life-threatening illness	Seek emergency veterinary assistance immediately

These signs overlap between diseases, so they need assessment rather than a trial of extra feed.

Protect milk quality

Good feeding supports production, while consistent milking routines, clean equipment and udder hygiene help protect milk quality and reduce infection spread.

Before using a veterinary medicine or medicated feed, confirm its suitability for lactating goats and the applicable milk withholding instructions. A meat withholding period does not establish when milk is suitable for human consumption. Follow the product directions and your prescribing veterinarian’s advice.

Will extra feed pay for itself?

Use your own milk payment arrangements and actual feed costs to assess a proposed change.

For a simple hypothetical example:

Daily result per doe	Amount
Saleable milk	4 litres
Assumed milk payment	$1.20 per litre
Milk income	$4.80
Total daily feed cost	$2.00
Income remaining after feed	$2.80

The $2.80 is income over feed cost, before labour, animal health, housing, milking, transport and other expenses.

If extra feed costs 30 cents a day but produces only 20 cents of additional saleable milk, the immediate milk return does not cover that extra feed cost. Consider any longer-term benefits to body condition or health separately.

Include forage costs, wastage and milk that cannot be sold. Where payment depends on fat and protein, use the actual payment formula. More litres alone do not tell you whether a feeding change is worthwhile.

Common feeding mistakes

Common problems include choosing feed by protein percentage alone, overlooking forage quality, changing grain too quickly and failing to check what quieter goats actually eat. Another is keeping the same ration despite substantial changes in milk production or body condition.

Before buying another supplement, review the complete feeding programme.

Frequently asked questions

Can dairy goats produce milk on pasture alone?

Some can maintain modest production on abundant, nutritious pasture and suitable browse. Whether that is enough depends on intake, forage quality and the doe’s requirements. Monitor condition and production, particularly during demanding stages.

How much grain should I feed per litre of milk?

There is no universal amount. Forage quality, body size, condition, milk composition and stage of lactation all affect the answer. Have the complete ration checked before applying a simple grain-to-milk rule.

Are pellets better than a grain mix?

Choose by formulation, feeding directions and the goats’ response. Pellets can still be overfed, and mixed feeds can be sorted. Whichever form you use, introduce changes gradually and assess the entire diet.

Should I increase protein whenever milk production drops?

First identify the limiting factor. Extra protein will not correct inadequate water, poor feed access, insufficient energy or an udder infection. Review the feeding and health records before changing the ration.

At ASK A VET™, we encourage practical feeding decisions built around the animal in front of you. Good forage, a balanced ration and regular observation give your dairy goats a strong foundation for healthy, sustainable milk production.